CN102660310A - Method for improving stability of biological oil by utilizing ethanol serving as additive - Google Patents
Method for improving stability of biological oil by utilizing ethanol serving as additive Download PDFInfo
- Publication number
- CN102660310A CN102660310A CN2012101326678A CN201210132667A CN102660310A CN 102660310 A CN102660310 A CN 102660310A CN 2012101326678 A CN2012101326678 A CN 2012101326678A CN 201210132667 A CN201210132667 A CN 201210132667A CN 102660310 A CN102660310 A CN 102660310A
- Authority
- CN
- China
- Prior art keywords
- bio oil
- ethanol
- additive
- stability
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses a method for improving the stability of biological oil by utilizing ethanol serving as an additive in the field of biomass energy. The method comprises the following steps of: adding ethanol into the biological oil which is prepared by the quick thermal cracking of straw and serves as raw materials according to different addition mass concentrations, stirring and mixing uniformly to store the biological oil. In the storage process, the change condition of the characteristics (moisture, kinematic viscosity and pH) of the biological oil with storage time is detected to determine the optimum ethanol addition amount. According to the method, the ethanol is used as the additive of the biological oil, so that the stability of the biological oil is improved simply and effectively, the problem of instable physicochemical property in the process for storing the biological oil is solved, and scientific reference is provided for the application of the biological oil.
Description
Technical field
What the present invention relates to is a kind of method of biomass energy source domain, and specifically, what relate to is a kind of method of utilizing additive ethanol to improve bio oil stability.
Background technology
Biomass through pyrolysis can produce solid (biological carbon), liquid (bio oil) and gas, and these products are potential substitutes of chemical fuel and Chemicals, are that a kind of more promising biomass are utilized mode.Along with the enhancing of human environmental consciousness and the quick consumption of crude oil, the mankind more and more pay close attention to the research of seeking effective cleaning substitute energy, therefore, for the human bio oil that power is provided, have received investigator's favor as potential alternative crude oil naturally.Current; The existing report of the application of relevant bio oil; But its some negative characteristic; As elevated oxygen level, low heat value, incompatible with conventional oil, solids content is high, HV and incomplete fluctuation and unstable chemcial property etc. have influenced its fuel quality, has hindered the application of bio oil in reality to a certain extent.
In existing document; The researchist has carried out useful discussion to the research of bio oil stability and quality-improving thereof; As compare high temperature storage; Storage at normal temperature to bio oil stability to improve effect best, bio oil is carried out hydrogenation, esterification or adds additive etc. biological oil properties is greatly improved.In the research that utilizes additive for improving bio oil stability in storage, relevant report is also arranged, for example additive methyl alcohol can significantly improve the physical and chemical stability of bio oil in bio oil.The difference that physico-chemical property changed when people such as Shen Chenjie stored under different storing temp conditions the wood chip bio oil has been made research (Shen Chenjie; Liu Ronghou, Chen Tianju. different storage temperatures are to the influence [J] of wood chip thermo-cracking bio oil physico-chemical property stability. EI, 2011; 27 (2): 276-281.); The result shows, compare normal temperature and high temperature storage, low tempertaure storage to bio oil stability to improve effect best.But the low tempertaure storage cost is high, is difficult for using aborning.
But in the retrieval of existing document, do not find that as yet the ethanol of adding different mass concentration in bio oil is studied ethanol to bio oil improved stability Research on effect.
Summary of the invention
The objective of the invention is to the gaps and omissions in the existing research; Through in bio oil, adding the ethanol of different mass concentration, the ethanol of research different mass concentration is to the effect of improving of bio oil stability, and this method is simple to operate; With low cost; And, can also selectively in bio oil, add the additive ethanol of different mass concentration to the different demands of different bio oil simultaneously to improved stability through in bio oil, adding the stability that ethanol can significantly improve bio oil.
The present invention realizes through following technical scheme, may further comprise the steps:
1) producing of thermo-cracking bio oil: the bio oil of selecting for use is generated by heat scission reaction, and character should keep even before adding additive;
Further, the bio oil that adopts among the present invention is the bio oil that the straw thermo-cracking is produced on fluidized-bed reactor, and the temperature of fast pyrolysis is 600 ℃.
2) bio oil is mixed with the additive alcoholic acid: take by weighing bio oil and place container; By different interpolation mass concentrations to wherein adding additive ethanol; It is 4wt%-20wt% that the additive alcoholic acid adds the mass concentration scope; And making the liquid volume in the different vessels keep identical basically, stirring mixes it;
Further, said step 2), be specially: take by weighing the bio oil of 50g-70g, be placed on earlier in the 100mL container, and press 4wt%, 8wt%, 12wt%, 16wt%, 20wt% mass concentration adding additive ethanol respectively, stir.
3) storage of bio oil: will put into the blue lid container of sealing with the bio oil that additive ethanol mixes, and be placed in the climatic chamber and store;
Further, the said climatic chamber that places stores, and concrete storing temp is 25 ℃, and the storage time is 42d.
4) mensuration of bio oil physico-chemical property.
Further, in storage process, detection of biological oil characteristic (moisture, kinematic viscosity, pH) is with the changing conditions in storage time, and wherein kinematic viscosity needs under 40 ℃ condition, to measure.
Further, described additive ethanol is AG ethanol, can prevent the influence to the bio oil water ratio of moisture that the ethanol of other types possibly contain.
The present invention is a research object with the physico-chemical property stability of bio oil; Through in bio oil, adding the ethanol of different mass concentration, mainly investigated alcoholic acid and added mass concentration bio oil change of stability situation when being respectively 4wt%, 8wt%, 12wt%, 16wt%, 20wt%.Ethanol is high, the inflammable liquid fuel of a kind of calorific value, and it is added the calorific value that can improve bio oil in the bio oil as additive, reduces the burning-point of bio oil; Simultaneously because ethanol is a kind of good polar solvent, and maybe be also can with the macromolecular complex qualitative response in the bio oil, so it can also play the remarkable effect of improving bio oil stability as biological oil additives.
The present invention adopts ethanol to make biological oil additives; Be not only a kind of fairly simple effective method of improving bio oil stability; Simultaneously through in bio oil, adding the different mass concentration ethanol; Study the different changing conditions of its physico-chemical property under normal temperature (25 ℃) condition, can also under different condition, burn to the difference of fuel performance requirement, confirm that ethanol is as the interpolation mass concentration of additive in bio oil according to the different in kind and the bio oil of bio oil itself.
Embodiment
Elaborate in the face of embodiments of the invention down, present embodiment is a prerequisite with technical scheme of the present invention, has provided detailed embodiment and concrete operating process, but that protection scope of the present invention is not limited to is following
Embodiment.
Embodiment 1:
In bio oil, adding mass concentration is the additive ethanol of 4wt%; The relatively difference of the bio oil physico-chemical property changing conditions of the changing conditions of its physico-chemical property in storage process and additive-free (adding mass concentration 0wt%), exploring mass concentration is the influence of the ethanol of 4wt% to bio oil stability.Weigh the bio oil of getting certain mass in the balance, pour in the beaker, take by weighing the ethanol of certain mass then, add and be equipped with in the beaker of bio oil, make ethanol its quality after adding bio oil account for 4% of total mass.After stirring mixes it, the bio oil in the beaker is moved in the blue lid bottle of sealing of 150mL, and the blue lid bottle of sealing that bio oil will be housed places 25 ℃ climatic chamber to store.
The whole storage process of bio oil continues 42d; In storage process; Detection of biological oil characteristic (moisture, kinematic viscosity, pH) is with the changing conditions of storage time (0d, 7d, 14d, 21d, 28d, 35d, 42d), and wherein kinematic viscosity is measured under 40 ℃ condition.The frequency of detection of biological oil characteristic index is to measure once in per 7 days.
The result is following:
Ethanol adds mass concentration, and to be respectively the physico-chemical property of bio oil of 0wt% and 4wt% as shown in the table with the changing conditions in storage time:
Embodiment 2:
In bio oil, adding mass concentration is the additive ethanol of 8wt%; The relatively difference of the bio oil physico-chemical property changing conditions of the changing conditions of its physico-chemical property in storage process and additive-free (adding mass concentration 0wt%), exploring mass concentration is the influence of the ethanol of 8wt% to bio oil stability.Weigh the bio oil of getting certain mass in the balance, pour in the beaker, take by weighing the ethanol of certain mass then, add and be equipped with in the beaker of bio oil, make ethanol its quality after adding bio oil account for 8% of total mass.After stirring mixes it, the bio oil in the beaker is moved in the blue lid bottle of sealing of 150mL, and the blue lid bottle of sealing that bio oil will be housed places 25 ℃ climatic chamber to store.
The whole storage process of bio oil continues 42d; In storage process; Detection of biological oil characteristic (moisture, kinematic viscosity, pH) is with the changing conditions of storage time (0d, 7d, 14d, 21d, 28d, 35d, 42d), and wherein kinematic viscosity is measured under 40 ℃ condition.
The result is following:
Ethanol adds mass concentration, and to be respectively the physico-chemical property of bio oil of 0wt% and 8wt% as shown in the table with the changing conditions in storage time:
Embodiment 3:
In bio oil, adding mass concentration is the additive ethanol of 12wt%; The relatively difference of the bio oil physico-chemical property changing conditions of the changing conditions of its physico-chemical property in storage process and additive-free (adding mass concentration 0wt%), exploring mass concentration is the influence of the ethanol of 12wt% to bio oil stability.Weigh the bio oil of getting certain mass in the balance, pour in the beaker, take by weighing the ethanol of certain mass then, add and be equipped with in the beaker of bio oil, make ethanol its quality after adding bio oil account for 12% of total mass.After stirring mixes it, the bio oil in the beaker is moved in the blue lid bottle of sealing of 150mL, and the blue lid bottle of sealing that bio oil will be housed places 25 ℃ climatic chamber to store.
The whole storage process of bio oil continues 42d; In storage process; Detection of biological oil characteristic (moisture, kinematic viscosity, pH) is with the changing conditions of storage time (0d, 7d, 14d, 21d, 28d, 35d, 42d), and wherein kinematic viscosity is measured under 40 ℃ condition.
The result is following:
Ethanol adds mass concentration, and to be respectively the physico-chemical property of bio oil of 0wt% and 12wt% as shown in the table with the changing conditions in storage time:
Embodiment 4:
In bio oil, adding mass concentration is the additive ethanol of 16wt%; The relatively difference of the bio oil physico-chemical property changing conditions of the changing conditions of its physico-chemical property in storage process and additive-free (adding mass concentration 0wt%), exploring mass concentration is the influence of the ethanol of 16wt% to bio oil stability.Weigh the bio oil of getting certain mass in the balance, pour in the beaker, take by weighing the ethanol of certain mass then, add and be equipped with in the beaker of bio oil, make ethanol its quality after adding bio oil account for 16% of total mass.After stirring mixes it, the bio oil in the beaker is moved in the blue lid bottle of sealing of 150mL, and the blue lid bottle of sealing that bio oil will be housed places 25 ℃ climatic chamber to store.
The whole storage process of bio oil continues 42d; In storage process; Detection of biological oil characteristic (moisture, kinematic viscosity, pH) is with the changing conditions of storage time (0d, 7d, 14d, 21d, 28d, 35d, 42d), and wherein kinematic viscosity is measured under 40 ℃ condition.
The result is following:
Ethanol adds mass concentration, and to be respectively the physico-chemical property of bio oil of 0wt% and 16wt% as shown in the table with the changing conditions in storage time:
Embodiment 5:
In bio oil, adding mass concentration is the additive ethanol of 20wt%; The relatively difference of the bio oil physico-chemical property changing conditions of the changing conditions of its physico-chemical property in storage process and additive-free (adding mass concentration 0wt%), exploring mass concentration is the influence of the ethanol of 20wt% to bio oil stability.Weigh the bio oil of getting certain mass in the balance, pour in the beaker, take by weighing the ethanol of certain mass then, add and be equipped with in the beaker of bio oil, make ethanol its quality after adding bio oil account for 20% of total mass.After stirring mixes it, the bio oil in the beaker is moved in the blue lid bottle of sealing of 150mL, and the blue lid bottle of sealing that bio oil will be housed places 25 ℃ climatic chamber to store.
The whole storage process of bio oil continues 42d; In storage process; Detection of biological oil characteristic (moisture, kinematic viscosity, pH) is with the changing conditions of storage time (0d, 7d, 14d, 21d, 28d, 35d, 42d), and wherein kinematic viscosity is measured under 40 ℃ condition.
The result is following:
Ethanol adds mass concentration, and to be respectively the physico-chemical property of bio oil of 0wt% and 20wt% as shown in the table with the changing conditions in storage time:
Can find out by above embodiment; Through in bio oil, adding the ethanol of different mass concentration, the ethanol of research different mass concentration is to the effect of improving of bio oil stability, and this method is simple to operate; With low cost; And, can also selectively in bio oil, add the additive ethanol of different mass concentration to the different demands of different bio oil simultaneously to improved stability through in bio oil, adding the stability that ethanol can significantly improve bio oil.
Although content of the present invention has been done detailed introduction through above-mentioned preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple modification of the present invention with to substitute all will be conspicuous.Therefore, protection scope of the present invention should be limited appended claim.
Claims (8)
1. a method of utilizing additive ethanol to improve bio oil stability is characterized in that, may further comprise the steps:
1) producing of thermo-cracking bio oil: the bio oil of selecting for use is generated by heat scission reaction, and character should keep even before adding additive; Said bio oil is the bio oil that the straw thermo-cracking is produced on fluidized-bed reactor;
2) bio oil is mixed with the additive alcoholic acid: take by weighing bio oil and place container; By different interpolation mass concentrations to wherein adding additive ethanol; It is 4wt%-20wt% that the additive alcoholic acid adds the mass concentration scope; And making the bio oil volume that adds the different mass concentration ethanol keep basically identical, stirring mixes it;
3) storage of bio oil: will put into the blue lid container of sealing with the bio oil that additive ethanol mixes, and be placed in the climatic chamber and store;
4) mensuration of bio oil physico-chemical property.
2. the method for utilizing additive ethanol to improve bio oil stability as claimed in claim 1 is characterized in that the said bio oil that the straw thermo-cracking is produced on fluidized-bed reactor, the temperature of its fast pyrolysis are 600 ℃.
3. the method for utilizing additive ethanol to improve bio oil stability as claimed in claim 1 is characterized in that described step 2), said additive alcoholic acid adds mass concentration and is respectively 4wt%, 8wt%, 12wt%, 16wt%, 20wt%.
4. the method for utilizing additive ethanol to improve bio oil stability as claimed in claim 3; It is characterized in that; Described step 2), is specially: take by weighing the bio oil of 50g-70g, be placed on earlier in the 100mL container; And press 4wt%, 8wt%, 12wt%, 16wt%, 20wt% mass concentration adding additive ethanol respectively, stir.
5. the method for utilizing additive ethanol to improve bio oil stability as claimed in claim 1 is characterized in that in the described step 3), the storage temperature range that places climatic chamber to store is 5-38 ℃, and the storage time is 42d.
6. the method for utilizing additive ethanol to improve bio oil stability as claimed in claim 1; It is characterized in that; In the said step 4), need the index of the detection of biological oil characteristic of detection that moisture, kinematic viscosity and pH are arranged, wherein kinematic viscosity is measured under 40 degrees centigrade condition.
7. the method for utilizing additive ethanol to improve bio oil stability as claimed in claim 6; It is characterized in that; In the said step 4); The frequency of detection of biological oil characteristic index is to measure once in per 7 days, and when storing 0d, 7d, 14d, 21d, 28d, 35d, 42d, measures moisture, kinematic viscosity and the pH of bio oil respectively.
8. like each described method of utilizing additive ethanol to improve bio oil stability of claim 1-7, it is characterized in that described additive ethanol is AG ethanol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101326678A CN102660310A (en) | 2012-04-28 | 2012-04-28 | Method for improving stability of biological oil by utilizing ethanol serving as additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101326678A CN102660310A (en) | 2012-04-28 | 2012-04-28 | Method for improving stability of biological oil by utilizing ethanol serving as additive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102660310A true CN102660310A (en) | 2012-09-12 |
Family
ID=46769894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101326678A Pending CN102660310A (en) | 2012-04-28 | 2012-04-28 | Method for improving stability of biological oil by utilizing ethanol serving as additive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102660310A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103666601A (en) * | 2013-11-27 | 2014-03-26 | 上海交通大学 | Composite additive as well as preparation method and application thereof |
| CN103789051A (en) * | 2014-02-26 | 2014-05-14 | 泗洪新创源木业有限公司 | Composite biomass liquid fuel |
| GB2535797B (en) * | 2015-02-27 | 2019-10-23 | Future Blends Ltd | Process for removal of water and light organics from pyrolysis oil |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5485728A (en) * | 1985-12-26 | 1996-01-23 | Enertech Environmental, Inc. | Efficient utilization of chlorine and moisture-containing fuels |
| CN1473188A (en) * | 2000-09-04 | 2004-02-04 | �����ɷ� | Process for production of liquid fuels from biomass |
-
2012
- 2012-04-28 CN CN2012101326678A patent/CN102660310A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5485728A (en) * | 1985-12-26 | 1996-01-23 | Enertech Environmental, Inc. | Efficient utilization of chlorine and moisture-containing fuels |
| CN1473188A (en) * | 2000-09-04 | 2004-02-04 | �����ɷ� | Process for production of liquid fuels from biomass |
Non-Patent Citations (2)
| Title |
|---|
| JAMES P.DIEBOLD等: "Additives To Lower and Stabilize the Viscosity of Pyrolysis Oils during Storage", 《ENERGY & FUELS》, vol. 11, no. 5, 30 September 1997 (1997-09-30), pages 1081 - 1091 * |
| 栗冬等: "温度对稻草流化床快速热解液相产物影响的研究", 《燃料化学学报》, vol. 38, no. 1, 28 February 2010 (2010-02-28), pages 47 - 51 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103666601A (en) * | 2013-11-27 | 2014-03-26 | 上海交通大学 | Composite additive as well as preparation method and application thereof |
| CN103666601B (en) * | 2013-11-27 | 2015-08-26 | 上海交通大学 | Composite additive and preparation method thereof, purposes |
| CN103789051A (en) * | 2014-02-26 | 2014-05-14 | 泗洪新创源木业有限公司 | Composite biomass liquid fuel |
| CN103789051B (en) * | 2014-02-26 | 2015-12-09 | 泗洪新创源木业有限公司 | A kind of composite biomass liquid fuel |
| GB2535797B (en) * | 2015-02-27 | 2019-10-23 | Future Blends Ltd | Process for removal of water and light organics from pyrolysis oil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Verma et al. | Evaluation and enhancement of cold flow properties of palm oil and its biodiesel | |
| Kaisan et al. | Calorific value, flash point and cetane number of biodiesel from cotton, jatropha and neem binary and multi-blends with diesel | |
| Zhou et al. | Catalytic pyrolysis of rice husk by mixing with zinc oxide: Characterization of bio-oil and its rheological behavior | |
| Khan et al. | Characterization of bioethanol obtained from Eichhornia Crassipes plant; its emission and performance analysis on CI engine | |
| Sivaramakrishnan et al. | Enhancement of total lipid yield by nitrogen, carbon, and iron supplementation in isolated microalgae | |
| Guarino et al. | Does the C/N ratio really affect the Bio-methane Yield? A three years investigation of Buffalo Manure Digestion | |
| Ogunkunle et al. | Yield response of biodiesel production from heterogeneous and homogeneous catalysis of milk bush seed (Thevetia peruviana) oil | |
| Yusuf et al. | Bioethanol production from different Matooke peels species: a surprising source for alternative fuel | |
| Carvalho Júnior et al. | Microalgae biodiesel via in situ methanolysis | |
| Conrad et al. | Stable carbon isotope biogeochemistry of propionate and acetate in methanogenic soils and lake sediments | |
| Peres et al. | Anaerobic digestion process for the production of biogas from cassava and sewage treatment plant sludge in Brazil | |
| JP2019076898A5 (en) | ||
| Igbokwe et al. | Effects of blend on the properties, performance and emission of palm kernel oil biodiesel | |
| Venkatraman et al. | Environmental effect of CI engine using microalgae biofuel with nano-additives | |
| CN102660310A (en) | Method for improving stability of biological oil by utilizing ethanol serving as additive | |
| Paramasivam et al. | Investigation and improvement on storage stability of pyrolysis oil obtained from Aegle marmelos de-oiled seed cake | |
| Hamidi et al. | Thermogravimetric kinetic analysis of Nannochloropsis oculata combustion in air atmosphere | |
| Kanakdande et al. | Biodiesel synthesis from non-edible oil using agro-waste and evaluation of its physicochemical properties | |
| EP3612618B1 (en) | Fuel compositions comprising c3 alcohols | |
| Nair et al. | Combustion and emission characteristics of light duty diesel engine fueled with transesterified algae biodiesel by K2CO3/ZnO heterogeneous base catalyst | |
| Khader Basha et al. | Experimental investigation of diesel engine with Neem seed oil and compressed natural gas | |
| Agarry et al. | Alkali-catalysed production of biodiesel fuel from Nigerian Citrus seeds oil | |
| Mohamed Nishath et al. | Influence of pyrogallol (PY) antioxidant in the fuel stability of alexandrian laurel biodiesel | |
| Joshi et al. | Study the production and characterization of Neem and Mahua based biodiesel and its blends with diesel fuel: An optimum blended fuel for Asia | |
| Thangavelu et al. | Characterization of biomass produced by Candida tropicalis ASY2 grown using sago processing wastewater for bioenergy applications and its fuel properties |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120912 |