Title:
【発明の名称】硫黄を含有する微粒状炭質燃料の燃焼装置及び燃焼方法
Document Type and Number:
Japanese Patent JP2682848
Kind Code:
B2
Abstract:
Sulfur sorbent and secondary oxidant are added to products of combustion passing from a slagging combustor to an associated heat-utilization equipment to form a reaction stream at a temperature from 1600 DEG F to 2300 DEG F where sulfur is captured by reaction with an alkaline earth metal containing sulfur sorbent, such as pulverized limestone. Combustion stoichiometry in the end use apparatus is between 1.1 and 1.3, at an effective calcium-to-sulfur molar ratio of from about 2 to about 5. Combustion conditions within the slagging combustor are regulated to produce a stream of fuel rich gaseous products, minimize formation of NOx and separately remove most of the fuel's non-combustible minerals. This hot gas clean up, prior to combining the gaseous products with sulfur sorbent and supplementary oxidizer, significantly enhances removal of sulfur constituents before the gaseous products pass from the heat-utilization equipment into the atmosphere.
Inventors:
Andrea Lynn Flowers Egens
John David Koonsuri
John David Koonsuri
Application Number:
JP19047788A
Publication Date:
November 26, 1997
Filing Date:
July 29, 1988
Export Citation:
Assignee:
T. W. Incorporated
International Classes:
F23C99/00; F23C3/00; F23C6/04; F23D1/02; F23J7/00; (IPC1-7): F23C11/00; F23D1/02
Domestic Patent References:
| JP61208411A | ||||
| JP6196319A | ||||
| JP58190606A | ||||
| JP58190605A |
Attorney, Agent or Firm:
Minoru Nakamura (7 outside)