CA2571044A1 - Method of testing denitration catalyst - Google Patents

Method of testing denitration catalyst Download PDF

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Publication number
CA2571044A1
CA2571044A1 CA002571044A CA2571044A CA2571044A1 CA 2571044 A1 CA2571044 A1 CA 2571044A1 CA 002571044 A CA002571044 A CA 002571044A CA 2571044 A CA2571044 A CA 2571044A CA 2571044 A1 CA2571044 A1 CA 2571044A1
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CA
Canada
Prior art keywords
removal
gas
testing
inlet
catalyst
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.)
Granted
Application number
CA002571044A
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French (fr)
Other versions
CA2571044C (en
Inventor
Tsuyoshi Chiyonobu
Hiroshi Shimada
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Chugoku Electric Power Co Inc
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2571044A1 publication Critical patent/CA2571044A1/en
Application granted granted Critical
Publication of CA2571044C publication Critical patent/CA2571044C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/10—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using catalysis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2062—Ammonia
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/17—Nitrogen containing
    • Y10T436/173845—Amine and quaternary ammonium
    • Y10T436/175383—Ammonia
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/17—Nitrogen containing
    • Y10T436/177692—Oxides of nitrogen
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/17—Nitrogen containing
    • Y10T436/177692—Oxides of nitrogen
    • Y10T436/178459—Only nitrogen dioxide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/17—Nitrogen containing
    • Y10T436/177692—Oxides of nitrogen
    • Y10T436/179228—Both nitrogen oxide and dioxide

Abstract

A method of testing a denitration catalyst in which taking into account the flow of gas in a gas flow channel of denitration catalyst, the practical catalytic performance thereof can be grasped. There is provided a method of testing a honeycomb type denitration catalyst for use in a smoke denitration apparatus, which denitration catalyst has a gas flow channel for feeding exhaust gas from an inlet side to an outlet side wherein on its side wall denitration is carried out. In this method, a test piece of length covering the entirety of turbulent flow region in which the flow of a treatment subject gas fed from the inlet side of the denitration catalyst into the gas flow channel is in disorder and further covering at least part of laminar flow region in which the turbulent flow has been rectified to a laminar flow is provided, and the first denitration testing is performed on the test piece.
Thereafter, the length of the turbulent flow region only is cut out, and the second denitration testing is performed. From these testing results, not only the catalytic performance of the turbulent flow region but also the catalytic performance of the laminar flow region is grasped, so that the catalytic performance of the denitration catalyst can be grasped.

Claims (7)

1. A method of testing a honeycomb-form NO x removal catalyst for use in a flue gas NO x removal apparatus, the catalyst having gas conduits for feeding a discharge gas from an inlet to an outlet of each conduit and performing NO x removal on the sidewalls of the conduit, characterized in that the method comprises providing a first test piece, which is a portion of the catalyst having a length covering the entirety of a turbulent flow zone in which a gas to be treated that has been fed into the gas conduits through the inlet of the NO x removal catalyst forms a turbulent flow and further covering at least a portion of a laminar flow zone in which the turbulent flow is rectified to form a laminar flow;

performing a first NO x removal test of the provided first test piece;

subsequently, performing a second NO x removal test of a second test piece, which is obtained through cutting out a catalyst portion of a length covering the turbulent flow zone; and assessing, on the basis of the test results, catalytic performance of the turbulent flow zone and that of the laminar flow zone, whereby catalytic performance of the NO x removal catalyst is assessed.
2. A method of testing a honeycomb-form NO x removal catalyst according to claim 1, wherein the turbulent flow zone has a length Lb (mm) represented by equation (A):
[F1]

Lb = a(Ly/Lys = 22e0.035 (Ly=Uin) ) (A) (wherein Uin (m/s) represents a gas inflow rate, Ly (mm) represents an aperture size, Lys is an aperture size of 6 mm (constant value), and "a" is a constant falling within a range of 3 to 6, when the aperture size (Ly) is 6 mm and the gas inflow rate is 6 m/s).
3. A method of testing a honeycomb-form NO x removal catalyst according to claim 1 or 2, wherein the first or second NO x removal test is performed while a model gas having a composition simulating the gas treated in an actual NO x removal apparatus is fed at a gas inflow rate equivalent to that employed in an actual NO x removal apparatus, thereby determining catalyst performance.
4. A method of testing a honeycomb-form NO x removal catalyst according to claim 1 or 2, wherein the first or second NO x removal test is performed while a model gas having a composition simulating the gas treated in an actual NO x removal apparatus is fed at a flow rate differing from that employed in an actual NO x removal apparatus, thereby determining catalyst performance in consideration of the relationship between gas inflow rate and reacted NO x.
5. A method of testing a honeycomb-form NO x removal catalyst according to any of claims 1 to 4, wherein the first or second NO x removal test comprises determining NO x concentrations on the inlet and outlet sides of respective test pieces; determining NH3 concentrations on the inlet and outlet sides of respective test pieces; and determining percent NO x removal .eta. on the basis of an inlet mole ratio ( i. e., inlet NH3/inlet NO x).
6. A method of testing a honeycomb-form NO x removal catalyst according to claim 5, wherein the percent NO x removal .eta. is determined on the basis of NH3 concentrations.
7. A method of testing a honeycomb-form NO x removal catalyst according to claim 6, wherein the percent NO x removal .eta. is determined on the basis of the following equation:

[F2]
.eta. ={( inlet NH3 - outlet NH3 )/( inlet NH3 - outlet NH3 + outlet NO x)}x100x(evaluation mole ratio/inlet mole ratio).
CA2571044A 2004-06-28 2005-06-21 Method of testing denitration catalyst Expired - Fee Related CA2571044C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2004190106 2004-06-28
JP2004-190106 2004-06-28
PCT/JP2005/011381 WO2006001283A1 (en) 2004-06-28 2005-06-21 Method of testing denitration catalyst

Publications (2)

Publication Number Publication Date
CA2571044A1 true CA2571044A1 (en) 2006-01-05
CA2571044C CA2571044C (en) 2010-10-26

Family

ID=35781753

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2571044A Expired - Fee Related CA2571044C (en) 2004-06-28 2005-06-21 Method of testing denitration catalyst

Country Status (10)

Country Link
US (1) US7759122B2 (en)
EP (1) EP1762844B1 (en)
JP (1) JP4425275B2 (en)
KR (1) KR100801237B1 (en)
CN (1) CN1977162B (en)
CA (1) CA2571044C (en)
DK (1) DK1762844T3 (en)
PL (1) PL1762844T3 (en)
TW (1) TWI277439B (en)
WO (1) WO2006001283A1 (en)

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* Cited by examiner, † Cited by third party
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WO2004060561A1 (en) * 2002-12-27 2004-07-22 The Chugoku Electric Power Co., Inc. Honeycomb catalyst, denitration catalyst of denitration device, and exhaust gas denitration device
CN101109742B (en) * 2007-08-24 2011-05-18 中电投远达环保工程有限公司 Method for testing and analyzing warehouse separated type denitrated catalyzer
JP6215050B2 (en) * 2013-12-27 2017-10-18 株式会社堀場製作所 Catalyst evaluation system
CN103969315A (en) * 2014-05-09 2014-08-06 南通亚泰船舶工程有限公司 Denitration catalyst detection device and method
CN104297008A (en) * 2014-10-11 2015-01-21 苏州华瑞能泰发电技术有限公司 Denitration device potential assessment and prediction method based on field performance tests
CN105572291A (en) * 2015-12-17 2016-05-11 云南电网有限责任公司电力科学研究院 Catalyst activity detection method for boiler denitrification system
WO2019130578A1 (en) * 2017-12-28 2019-07-04 中国電力株式会社 Method for evaluating degradation of denitration catalyst
CN109884242A (en) * 2019-03-21 2019-06-14 青岛大学 A kind of test device and evaluation method based on catalyst load filtrate denitration effect

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Also Published As

Publication number Publication date
EP1762844A1 (en) 2007-03-14
JPWO2006001283A1 (en) 2008-04-17
EP1762844A4 (en) 2009-04-01
US20070243619A1 (en) 2007-10-18
CN1977162A (en) 2007-06-06
CA2571044C (en) 2010-10-26
DK1762844T3 (en) 2014-12-15
EP1762844B1 (en) 2014-09-10
KR20070030234A (en) 2007-03-15
TW200605950A (en) 2006-02-16
KR100801237B1 (en) 2008-02-11
PL1762844T3 (en) 2015-03-31
TWI277439B (en) 2007-04-01
WO2006001283A1 (en) 2006-01-05
JP4425275B2 (en) 2010-03-03
US7759122B2 (en) 2010-07-20
CN1977162B (en) 2011-02-16

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Effective date: 20190621