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Title: Hybrid coal gasification

Abstract

Retrofitting gas, oil and coal-fired boilers can reduce operating costs and meet EPA's Clean Air Interstate Rules (CAIR) when firing most Eastern and Midwest bituminous coals. The trademarked Clean Combustion System (CCS) concept, conceived at Rockwell International, evolved from a confluence of advanced combustion modelling know-how, experience in coal gasification and wet-bottom boiler operation and design. The CCS is a high temperature air-feed entrained flow gasifier that replaces a boiler's existing burners. It fires pulverized coal with some limestone added to provide calcium to capture sulfur and provide a clean hot fuel-rich gas to the boiler furnace. Subsequent over-fire air (OFA) staging completes the combustion. A 'sulfur bearing glass' waste product results from the coal ash and the calcium sulfide. The CCS process prevents formation of NOx from fuel-bound nitrogen. The initial commercialisation of CCS is the update and retrofit an industrial stoker design boiler. Steps for the retrofit are described in the article. 2 figs., 1 photo.

Authors:
 [1]
  1. Phenix Ltd. (United States)
Publication Date:
OSTI Identifier:
20885818
Resource Type:
Journal Article
Resource Relation:
Journal Name: Power Engineering (Barrington); Journal Volume: 111; Journal Issue: 1
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; USA; RETROFITTING; BOILERS; NATURAL GAS; FUEL OILS; COAL; OPERATING COST; GAS GENERATORS; ENTRAINMENT; CAPTURE; SULFUR; PULVERIZED FUELS; CALCIUM SULFIDES; LIMESTONE; COAL GASIFICATION; WASTE PRODUCT UTILIZATION; STAGED COMBUSTION; DESULFURIZATION; AIR POLLUTION ABATEMENT; NITROGEN OXIDES; HYBRID SYSTEMS

Citation Formats

Moore, K. Hybrid coal gasification. United States: N. p., 2007. Web.
Moore, K. Hybrid coal gasification. United States.
Moore, K. Mon . "Hybrid coal gasification". United States. doi:.
@article{osti_20885818,
title = {Hybrid coal gasification},
author = {Moore, K.},
abstractNote = {Retrofitting gas, oil and coal-fired boilers can reduce operating costs and meet EPA's Clean Air Interstate Rules (CAIR) when firing most Eastern and Midwest bituminous coals. The trademarked Clean Combustion System (CCS) concept, conceived at Rockwell International, evolved from a confluence of advanced combustion modelling know-how, experience in coal gasification and wet-bottom boiler operation and design. The CCS is a high temperature air-feed entrained flow gasifier that replaces a boiler's existing burners. It fires pulverized coal with some limestone added to provide calcium to capture sulfur and provide a clean hot fuel-rich gas to the boiler furnace. Subsequent over-fire air (OFA) staging completes the combustion. A 'sulfur bearing glass' waste product results from the coal ash and the calcium sulfide. The CCS process prevents formation of NOx from fuel-bound nitrogen. The initial commercialisation of CCS is the update and retrofit an industrial stoker design boiler. Steps for the retrofit are described in the article. 2 figs., 1 photo.},
doi = {},
journal = {Power Engineering (Barrington)},
number = 1,
volume = 111,
place = {United States},
year = {Mon Jan 15 00:00:00 EST 2007},
month = {Mon Jan 15 00:00:00 EST 2007}
}