JPS5778929A - Denitrification of waste gas from steam reforming furnace - Google Patents

Denitrification of waste gas from steam reforming furnace

Info

Publication number
JPS5778929A
JPS5778929A JP55155188A JP15518880A JPS5778929A JP S5778929 A JPS5778929 A JP S5778929A JP 55155188 A JP55155188 A JP 55155188A JP 15518880 A JP15518880 A JP 15518880A JP S5778929 A JPS5778929 A JP S5778929A
Authority
JP
Japan
Prior art keywords
waste gas
catalyst layer
preheater
reducing agent
treated
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
JP55155188A
Other languages
Japanese (ja)
Other versions
JPH0131560B2 (en
Inventor
Tatsuo Murataka
Shunji Emoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Power Ltd
Original Assignee
Babcock Hitachi KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Babcock Hitachi KK filed Critical Babcock Hitachi KK
Priority to JP55155188A priority Critical patent/JPS5778929A/en
Publication of JPS5778929A publication Critical patent/JPS5778929A/en
Publication of JPH0131560B2 publication Critical patent/JPH0131560B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

PURPOSE: To effectively remove NOx in waste gas from steam-reforming furnace or combustor, for which the decrease of NOx only by controlling combustion is unattainable, by using a small amount of catalyst by a method in which a catalyst layer is provided in a waste gas duct in which the temperature of the waste gas is within a specific range and a reducing agent is sprayed to the upstream of the waste gas near the catalyst layer.
CONSTITUTION: Waste gas from the combustion of a radiation type short flame burner 2 in a steam reforming furnace is directed from a waste gas outlet 4 into a waste gas duct 5 and then heat-exchanged with a heat exchanger in which a steam heater 6, a waste heat recovery boiler 7, a preheater 8 for gas to be treated, and a preheater 9 for supply water are orderly arranged. In this case, a catalyst layer 10 is provided inside the preheater 8 for the waste gas to be treated, branched into plural heating pipe groups, where the temperature distribution in the duct 5 goes around the range 300 to 400°C. Then a reducing agent, e.g., NH3, etc., is sprayed in place close to the catalyst layer 10 and where the reducing agent can be uniformly dispersed, e.g., in the upstream side of the heating pipe groups of the preheater 8 for waste gas to be treated, located on the upstream side of the catalyst layer 10, from a reducing agent sprayer 11 provided there.
COPYRIGHT: (C)1982,JPO&Japio
JP55155188A 1980-11-06 1980-11-06 Denitrification of waste gas from steam reforming furnace Granted JPS5778929A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55155188A JPS5778929A (en) 1980-11-06 1980-11-06 Denitrification of waste gas from steam reforming furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55155188A JPS5778929A (en) 1980-11-06 1980-11-06 Denitrification of waste gas from steam reforming furnace

Publications (2)

Publication Number Publication Date
JPS5778929A true JPS5778929A (en) 1982-05-17
JPH0131560B2 JPH0131560B2 (en) 1989-06-27

Family

ID=15600404

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55155188A Granted JPS5778929A (en) 1980-11-06 1980-11-06 Denitrification of waste gas from steam reforming furnace

Country Status (1)

Country Link
JP (1) JPS5778929A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05247471A (en) * 1991-09-20 1993-09-24 Mitsui Eng & Shipbuild Co Ltd Ethylene cracker
CN108786666A (en) * 2017-04-28 2018-11-13 中国石化工程建设有限公司 Burn reburner in side
CN109425222A (en) * 2017-08-22 2019-03-05 中国石化工程建设有限公司 Burn reforming furnace in side

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS531682A (en) * 1976-06-28 1978-01-09 Osaka Gas Co Ltd Decreasing method of no# in combustion exhaust gas from hydrocarbon
JPS5364103A (en) * 1976-09-24 1978-06-08 Hitachi Ltd Waste heat recovery boiler

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS531682A (en) * 1976-06-28 1978-01-09 Osaka Gas Co Ltd Decreasing method of no# in combustion exhaust gas from hydrocarbon
JPS5364103A (en) * 1976-09-24 1978-06-08 Hitachi Ltd Waste heat recovery boiler

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05247471A (en) * 1991-09-20 1993-09-24 Mitsui Eng & Shipbuild Co Ltd Ethylene cracker
CN108786666A (en) * 2017-04-28 2018-11-13 中国石化工程建设有限公司 Burn reburner in side
CN108786666B (en) * 2017-04-28 2021-12-10 中国石化工程建设有限公司 Side burning converter
CN109425222A (en) * 2017-08-22 2019-03-05 中国石化工程建设有限公司 Burn reforming furnace in side

Also Published As

Publication number Publication date
JPH0131560B2 (en) 1989-06-27

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