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Title:
PETROLEUM RESIDUE-FIRED BOILER AND COMBUSTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/202362
Kind Code:
A1
Abstract:
This petroleum residue-fired boiler has: a high-temperature reduction combustion chamber which is suppled with petroleum residue fuel and primary combustion air, and which performs combustion at an air ratio of less than 1 at 1300°C or more; and a low-temperature oxidation combustion chamber which is connected to the high-temperature reduction combustion chamber, and which performs combustion at an air ratio of 1 or more at less than 1300°C. In this petroleum residue-fired boiler, assist gas is supplied to the high-temperature reduction combustion chamber, and water vapor produced by the combustion of the assist gas is used as a gasifying agent to gasify the unburned carbon in the combustion gas of the petroleum residue fuel through a water gas reaction.

Inventors:
SUEMITSU NOBUO
TABATA SEIJI
ISEDA HITOSHI
Application Number:
PCT/JP2019/014280
Publication Date:
October 08, 2020
Filing Date:
March 29, 2019
Export Citation:
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Assignee:
KAWASAKI HEAVY IND LTD (JP)
International Classes:
F23C99/00; F23C1/12; F23J7/00
Foreign References:
JP2016114268A2016-06-23
US20150226421A12015-08-13
JP2017090019A2017-05-25
JP2010271001A2010-12-02
JPH0942611A1997-02-14
CN109028037A2018-12-18
US20120129111A12012-05-24
JP2012107825A2012-06-07
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (JP)
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