Evaluation of boiler-design modifications for enhanced LIMB application. Final report, September 1985-July 1986

Technical Report · Mon Jun 01 04:00:00 EDT 1987

OSTI ID:6214337

Ryan, D E; Smolenski, R

This report gives results of a study to evaluate the technical and economic impact of designing wall-fired pulverized-coal units to incorporate dry-sorbent sulfur control technology (LIMB). Conventional (non-LIMB) units were set up in three sizes (200, 400, and 600 MW) to burn a low-sulfur (0.48%) subbituminous fuel. LIMB units were then set up to achieve 70% SOx removal using dry-sorbent injection. Standard cost-estimating procedures were used to evaluate the cost differentials between the conventional and LIMB units. These cost data were used to establish removal cost trends as a function of calcium-to-sulfur (Ca/S) mole ratios and boiler size. The study concluded that it is technically feasible to achieve 70% sulfur removal in a unit burning low-sulfur fuel using only dry-sorbent injection. The results also showed that Ca/S ratios between 2.8 and 3.5 can be accommodated without radical alterations to state-of-the-art boiler configurations.

• Research Organization: Babcock and Wilcox Co., Barberton, OH (USA)
• OSTI ID: 6214337
• Report Number(s): PB-87-199634/XAB
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
AIR POLLUTION ABATEMENT
BOILERS
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
COMBUSTION
ECONOMIC IMPACT
ENERGY SOURCES
FOSSIL FUELS
FUELS
MATERIALS
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
PULVERIZED FUELS
REMOVAL
SULFUR COMPOUNDS
SULFUR OXIDES
THERMOCHEMICAL PROCESSES