US20090114567A1 - Cracking hydrocarbonaceous materials with heating bodies - Google Patents
Cracking hydrocarbonaceous materials with heating bodies Download PDFInfo
- Publication number
- US20090114567A1 US20090114567A1 US12/267,536 US26753608A US2009114567A1 US 20090114567 A1 US20090114567 A1 US 20090114567A1 US 26753608 A US26753608 A US 26753608A US 2009114567 A1 US2009114567 A1 US 2009114567A1
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- US
- United States
- Prior art keywords
- heating bodies
- materials
- heating
- heater
- mixer
- 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.)
- Abandoned
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G9/28—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils with preheated moving solid material
- C10G9/30—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils with preheated moving solid material according to the "moving bed" method
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/002—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal in combination with oil conversion- or refining processes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/02—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by distillation
Definitions
- the present disclosure relates to processes for hydrocarbonaceous feedstocks containing a high percentage of hydrocarbons, such as heavy liquids and solids, which require vaporization and cracking to make diesel fuel and other fuels. These processes are frequently used to process liquids such as used motor oils, and solids such as tires. A problem with these kinds of processes is that the vaporization and cracking of the hydrocarbons results in the formation of carbon on the heat source, which then can interfere with and foul up process equipment. This requires frequent shut-downs and maintenance.
- heating bodies such as iron balls.
- Hot iron balls are mixed with hydrocarbonaceous feedstock under non-oxidizing conditions, to vaporize and crack hydrocarbon materials in the feedstock.
- a buildup of carbon or coke will form on the iron balls during the vaporization and cracking process.
- the heating bodies are then continuously circulated through a heating unit under oxidizing conditions where the balls are passed through a heating fire to burn off carbon.
- the balls are rolled and exposed directly to a heating fire. The rolling action rubs carbon deposits off the balls and the oxidizing conditions oxidize carbon.
- Vapors leave the mixer and pass through incoming heated iron balls to further crack vapors as needed to make fuels of a desired viscosity.
- Nonvaporized feedstock materials are removed from the mixer/vaporizer with iron balls and separated out before or after iron balls circulate through the heater.
- FIG. 1 is a schematic diagram of an apparatus viewed from the top.
- FIG. 2A is a schematic diagram of a portion of an apparatus as in FIG. 1 viewed from the side.
- FIG. 2B is a schematic diagram of an alternate construction to FIG. 2A .
- FIG. 3 is a cross-section of a burner.
- FIG. 1 is a schematic view from the top of a system
- FIGS. 2A and 2B are each schematics from the side of a portion of exemplary systems for processing used motor oil.
- the system can be used for processing shredded tires, tar sand crudes, oil shale crudes, recycled plastics, or any other feed stock where a major portion is hydrocarbonaceous in nature.
- the feedstock can also be mixtures of any of these.
- Used motor oil is introduced into a mixer 11 , through an inlet conduit 13 .
- the motor oil can be introduced into a first end 15 , as illustrated in FIG. 2A , or the conduit can extend up through the mixer and be introduced at the mixer second end 17 so that the oil flows counter current to the heated heating bodies 19 .
- Heated heating bodies 19 such as iron balls, are introduced into the first end.
- the mixer is in the form of a drum with an auger flight 21 (or other transport structure) on the inside will, so that as the drum rotates, the iron balls 19 are moved toward the second end 17 and mixed with the oil.
- FIG. 2A the heating bodies and the oil move together up through the mixer.
- FIG. 2B at least some of the oil flows counter-current to the heating bodies, with the oil flowing through holes 23 in the auger flight 21 .
- the mixer also functions as a vaporizer and cracker.
- the mixer may also be inclined to carry the balls upward to the heater 25 , and thus functions as an elevator.
- the drum of the mixer is disposed in a containment 27 and has appropriate vapor lock transporters 29 for solid material transfer in and out of the mixer to maintain a non-oxidizing environment.
- the balls and any other nongaseous materials carried up by the flight are withdrawn from the mixer and passed to a heater 25 using a vapor lock system 29 to exclude air from the mixer.
- some carbon formed upon the balls is removed by the rubbing or abrasive action of the balls in the mixer.
- the non-gaseous materials withdrawn with the balls includes this carbon, as well as any other solid and non-gaseous materials, such as solid unreacted or partially reacted hydrocarbons in the feedstock and inert materials, which include mineral and metal contaminants. If the feedstock includes shredded tires, such solid materials may include tire cord materials, such as steel and unvolatized polymers.
- the heater 25 is generally in the form a rotating drum with a system, such as paddles, auger flights, and elevator bars 31 to transport and roll balls 19 along with solid materials through the heater.
- a system such as paddles, auger flights, and elevator bars 31 to transport and roll balls 19 along with solid materials through the heater.
- carbon on the balls is fractured from the balls by the rolling and moving of the balls due to rotation of the heater.
- carbon and other solid materials are combusted as balls are exposed to fire in the heater.
- the heater 25 includes a burner 33 that extends the length of the heater 25 that directs blue flame directly upon balls being rolled in the heater.
- a feed pipe 35 for air is also provided that directs oxidizing atmosphere directly on the balls through air conduits 36 to promote oxidation of carbon. In this way carbon that has accumulated in the system is continuously removed.
- the oxidizing carbon also functions as a fuel in the heater.
- the heater also functions to heat the iron balls to a high temperature. When these heated iron balls are introduced into the mixer, they must be hot enough to sufficiently heat the feedstock to vaporization and cracking temperatures in the mixer.
- any remaining solid materials are separated from the balls, and the balls are recycled back through a vapor-lock transport to the mixer.
- the separation may be by any suitable technique, such as screening. Effluent combustion gasses from the heater are directed to a stack 45 or other suitable structure.
- the vapor-lock transport inlet 29 to mixer can also function as a cracker, as particularly shown in FIG. 2A and FIG. 2B .
- FIG. 2A the hot iron balls fall through vapors leaving the mixer, which further heats and cracks the vapors.
- a spreader 37 can be used to mix the heating bodies and increase the gas permeability for vapor flow.
- screens or ramps 39 with holes 41 cause the balls to roll through the vapors.
- the heating bodies are transported from the vapor lock transport 29 back into the mixer, to again be transported through the mixer.
- the vapors from the vapor lock transport are passed to a condenser 41 , where condensible liquid hydrocarbons are produced for fuels and as hydrocarbon feedstocks.
- the non-condensible vapors from the condenser are recycled back to the heater, where they are used as fuel for the heater.
- heat from condensing the vapors can be used to pretreat the feedstock to remove both condensible vapors and water in the feedstock before it is heated and cracked in the mixer. These vapors can be passed to the burner of the heater.
- a counter-flow heat exchanger using hot vapors to heat the feed stock can be used in this function, where it acts as a vapor condenser-feedstock heater.
- the heating bodies may be any suitable material that can be heated and transfer heat in the process, and is tough enough to withstand the tumbling in mixer and heater. In addition, denser materials are preferred to help with the removing of the carbon effect in the heater. Balls of iron, or an iron alloy, have been found suitable. Reference to “iron balls” or “balls” in this disclosure refers generally to heating bodies of any suitable material.
Abstract
A continuous process and apparatus for treating feedstocks containing carbonaceous materials involves heating bodies to heat the feedstock to vaporize and crack hydrocarbons and carbon formed on heating bodies is removed through direct contact to a flame heater.
Description
- This application claims priority from U.S. Provisional Application 60/986,284, filed Nov. 7, 2007, which is hereby incorporated by reference.
- The present disclosure relates to processes for hydrocarbonaceous feedstocks containing a high percentage of hydrocarbons, such as heavy liquids and solids, which require vaporization and cracking to make diesel fuel and other fuels. These processes are frequently used to process liquids such as used motor oils, and solids such as tires. A problem with these kinds of processes is that the vaporization and cracking of the hydrocarbons results in the formation of carbon on the heat source, which then can interfere with and foul up process equipment. This requires frequent shut-downs and maintenance.
- A process that avoids the problems due to carbon buildup can be practiced with the use of heating bodies, such as iron balls. Hot iron balls are mixed with hydrocarbonaceous feedstock under non-oxidizing conditions, to vaporize and crack hydrocarbon materials in the feedstock. A buildup of carbon or coke will form on the iron balls during the vaporization and cracking process. To remove the carbon, the heating bodies are then continuously circulated through a heating unit under oxidizing conditions where the balls are passed through a heating fire to burn off carbon. In the heating unit the balls are rolled and exposed directly to a heating fire. The rolling action rubs carbon deposits off the balls and the oxidizing conditions oxidize carbon. After balls are reheated and cleaned of coke, they are recirculated to the mixing chamber through a vapor-lock feeder. Vapors leave the mixer and pass through incoming heated iron balls to further crack vapors as needed to make fuels of a desired viscosity. Nonvaporized feedstock materials are removed from the mixer/vaporizer with iron balls and separated out before or after iron balls circulate through the heater.
-
FIG. 1 is a schematic diagram of an apparatus viewed from the top. -
FIG. 2A is a schematic diagram of a portion of an apparatus as inFIG. 1 viewed from the side. -
FIG. 2B is a schematic diagram of an alternate construction toFIG. 2A . -
FIG. 3 is a cross-section of a burner. - Reference is made to
FIG. 1 , which is a schematic view from the top of a system, andFIGS. 2A and 2B , which are each schematics from the side of a portion of exemplary systems for processing used motor oil. With appropriate modification, the system can be used for processing shredded tires, tar sand crudes, oil shale crudes, recycled plastics, or any other feed stock where a major portion is hydrocarbonaceous in nature. The feedstock can also be mixtures of any of these. - Used motor oil is introduced into a
mixer 11, through aninlet conduit 13. The motor oil can be introduced into afirst end 15, as illustrated inFIG. 2A , or the conduit can extend up through the mixer and be introduced at the mixersecond end 17 so that the oil flows counter current to the heatedheating bodies 19. Heatedheating bodies 19, such as iron balls, are introduced into the first end. The mixer is in the form of a drum with an auger flight 21 (or other transport structure) on the inside will, so that as the drum rotates, theiron balls 19 are moved toward thesecond end 17 and mixed with the oil. - In
FIG. 2A , the heating bodies and the oil move together up through the mixer. InFIG. 2B , at least some of the oil flows counter-current to the heating bodies, with the oil flowing throughholes 23 in theauger flight 21. - In both cases, the iron balls mix with the oil and heat the oil to a temperature that will vaporize the hydrocarbon, crack hydrocarbons in the feedstock, and crack volatilized hydrocarbon vapors. Accordingly, the mixer also functions as a vaporizer and cracker. The mixer may also be inclined to carry the balls upward to the
heater 25, and thus functions as an elevator. The drum of the mixer is disposed in acontainment 27 and has appropriatevapor lock transporters 29 for solid material transfer in and out of the mixer to maintain a non-oxidizing environment. - At the second end of the mixer, the balls and any other nongaseous materials carried up by the flight are withdrawn from the mixer and passed to a
heater 25 using avapor lock system 29 to exclude air from the mixer. In the mixer, some carbon formed upon the balls is removed by the rubbing or abrasive action of the balls in the mixer. The non-gaseous materials withdrawn with the balls includes this carbon, as well as any other solid and non-gaseous materials, such as solid unreacted or partially reacted hydrocarbons in the feedstock and inert materials, which include mineral and metal contaminants. If the feedstock includes shredded tires, such solid materials may include tire cord materials, such as steel and unvolatized polymers. - Referring to
FIG. 1 andFIG. 3 , which is a cross-sectional schematic, theheater 25 is generally in the form a rotating drum with a system, such as paddles, auger flights, andelevator bars 31 to transport androll balls 19 along with solid materials through the heater. In the heater carbon on the balls is fractured from the balls by the rolling and moving of the balls due to rotation of the heater. In addition, carbon and other solid materials are combusted as balls are exposed to fire in the heater. - The balls can be exposed and heated by the fire by any suitable system, that may, for example, include elevating and and dropping the balls through the fire. In
FIG. 3 , theheater 25 includes aburner 33 that extends the length of theheater 25 that directs blue flame directly upon balls being rolled in the heater. Afeed pipe 35 for air is also provided that directs oxidizing atmosphere directly on the balls throughair conduits 36 to promote oxidation of carbon. In this way carbon that has accumulated in the system is continuously removed. The oxidizing carbon also functions as a fuel in the heater. - The heater also functions to heat the iron balls to a high temperature. When these heated iron balls are introduced into the mixer, they must be hot enough to sufficiently heat the feedstock to vaporization and cracking temperatures in the mixer.
- After leaving the heater any remaining solid materials are separated from the balls, and the balls are recycled back through a vapor-lock transport to the mixer. The separation may be by any suitable technique, such as screening. Effluent combustion gasses from the heater are directed to a
stack 45 or other suitable structure. - The vapor-
lock transport inlet 29 to mixer can also function as a cracker, as particularly shown inFIG. 2A andFIG. 2B . InFIG. 2A , the hot iron balls fall through vapors leaving the mixer, which further heats and cracks the vapors. Aspreader 37 can be used to mix the heating bodies and increase the gas permeability for vapor flow. InFIG. 2B , screens or ramps 39 with holes 41 (to allow passage of vapors) cause the balls to roll through the vapors. - The heating bodies are transported from the
vapor lock transport 29 back into the mixer, to again be transported through the mixer. - The vapors from the vapor lock transport are passed to a
condenser 41, where condensible liquid hydrocarbons are produced for fuels and as hydrocarbon feedstocks. The non-condensible vapors from the condenser are recycled back to the heater, where they are used as fuel for the heater. - Optionally heat from condensing the vapors can be used to pretreat the feedstock to remove both condensible vapors and water in the feedstock before it is heated and cracked in the mixer. These vapors can be passed to the burner of the heater. A counter-flow heat exchanger using hot vapors to heat the feed stock can be used in this function, where it acts as a vapor condenser-feedstock heater.
- The heating bodies may be any suitable material that can be heated and transfer heat in the process, and is tough enough to withstand the tumbling in mixer and heater. In addition, denser materials are preferred to help with the removing of the carbon effect in the heater. Balls of iron, or an iron alloy, have been found suitable. Reference to “iron balls” or “balls” in this disclosure refers generally to heating bodies of any suitable material.
- While this invention has been described with reference to certain specific embodiments and examples, it will be recognized by those skilled in the art that many variations are possible without departing from the scope and spirit of this invention, and that the invention, as described by the claims, is intended to cover all changes and modifications of the invention which do not depart from the spirit of the invention.
Claims (10)
1. A process for processing materials with a major proportion of hydrocarbon component:
contacting the materials directly with heated iron balls to heat the materials to a temperature to vaporize and crack the hydrocarbons in the material;
recovering vapors produced by the contacting.
2. A process for processing materials with a major hydrocarbon content comprising:
contacting in an oxygen-free atmosphere the materials directly with heating bodies that have been heated, the contacting sufficient to heat the materials to a temperature to vaporize and crack hydrocarbons in the material;
in an oxidizing atmosphere heating and moving the heating bodies to remove carbon formed on the heating bodies by combusting the carbon and by moving the heating bodies such that the moving removes carbon by abrading the carbon;
directing the heating bodies from the heating to the contacting the materials;
recovering vapors from the cracked and vaporized materials produced during the contacting;
the heating bodies heated during the heating sufficiently to heat the materials during the contacting of the materials.
3. A process as in claim 2 wherein after the heating, the heating bodies are directed to pass through vapors produced in the contacting to further heat and crack the vapors before the vapors are recovered.
4. A process as in claim 2 wherein in solid residues are separated from the heating bodies after the heating of the heating bodies.
5. A process as in claim 1 wherein noncondensed portions of the recovered vapors are directed to the heater, and function as fuel for the heater.
6. A process as in claim 1 wherein nonvaporized and noncombusted materials from the feedstock are separated from the heating bodies as they together leave the heating of the heating bodies.
7. An apparatus for processing materials with a hydrocarbon content comprising;
a continuous mixer configured to transport feedstock and heating bodies co-currently through the mixer in non-oxidizing conditions such that hydrocarbonaceous material the feedstock is heated by the heating bodies sufficiently to vaporize and crack the hydrocarbonaceous materials;
a continuous heater configured to heat and move the heating bodies under oxidizing conditions and moving conditions to remove carbon deposits from the balls through oxidation and abrasion of the carbon deposits;
the mixer and heater arranged to continuously cycle the heating bodies through the mixer, into and through the heater, and back into the mixer.
8. An apparatus as in claim 7 additionally comprising a vapor-excluding transport configured to allow the heated heating bodies from the heater to pass through vapors produced in the mixer to further crack the vapors.
9. An apparatus as in claim 7 additionally comprising a vapor-condenser-feedstock preheater and precondenser to vaporize and remove light hydrocarbons and water from the feedstock.
10. An apparatus as in claim 9 wherein the removed light hydrocarbons and water are directed to the heater, where the light hydrocarbons function as fuel for the heater.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US12/267,536 US20090114567A1 (en) | 2007-11-07 | 2008-11-07 | Cracking hydrocarbonaceous materials with heating bodies |
Applications Claiming Priority (2)
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US98628407P | 2007-11-07 | 2007-11-07 | |
US12/267,536 US20090114567A1 (en) | 2007-11-07 | 2008-11-07 | Cracking hydrocarbonaceous materials with heating bodies |
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US20090114567A1 true US20090114567A1 (en) | 2009-05-07 |
Family
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US12/267,536 Abandoned US20090114567A1 (en) | 2007-11-07 | 2008-11-07 | Cracking hydrocarbonaceous materials with heating bodies |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8042282B2 (en) * | 2006-02-27 | 2011-10-25 | Lg Electronics Inc. | Drum for clothes dryer |
WO2014014731A1 (en) * | 2012-07-20 | 2014-01-23 | Lummus Technology Inc. | Coke catcher |
EP2571613A4 (en) * | 2010-05-18 | 2017-08-23 | Envirollea Inc. | Thermal processing reactor for mixtures, fabrication of the reactor, processes using the reactors and uses of the products obtained |
US11530358B2 (en) * | 2017-07-13 | 2022-12-20 | Envirollea Inc. | Process for producing liquid fuel from waste hydrocarbon and/or organic material, reactor, apparatus, uses and managing system thereof |
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Publication number | Priority date | Publication date | Assignee | Title |
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US8042282B2 (en) * | 2006-02-27 | 2011-10-25 | Lg Electronics Inc. | Drum for clothes dryer |
EP2571613A4 (en) * | 2010-05-18 | 2017-08-23 | Envirollea Inc. | Thermal processing reactor for mixtures, fabrication of the reactor, processes using the reactors and uses of the products obtained |
US10315183B2 (en) | 2010-05-18 | 2019-06-11 | Envirollea Inc. | Thermal processing reactor for mixtures, fabrication of the reactor, processes using the reactors and uses of the products obtained |
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US11530358B2 (en) * | 2017-07-13 | 2022-12-20 | Envirollea Inc. | Process for producing liquid fuel from waste hydrocarbon and/or organic material, reactor, apparatus, uses and managing system thereof |
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Legal Events
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |