Feasibility of black liquor gasification in combined cycle cogeneration. Final report, Phase I

Technical Report · Thu Jun 30 04:00:00 EDT 1983

OSTI ID:5560500

Kelleher, E G

A small-scale test program of 65% solids black liquor gasification was conducted in the bench-scale molten salt gasifier. Nine tests were performed using both air and oxygen as the oxidant. The black liquor gasified readily and the product gas had a dry-basis heating value of 70 Btu/scf with air and about 250 Btu/scf with oxygen. These values were almost identical to values predicted on the basis of thermodynamic equilibrium in the gas phase, indicating that the system had achieved near-equilibrium. However, the reduction of the melt to sodium sulfide was generally low. An independent research program aimed at improving the performance of air-blown black liquor gasification was conducted. That work resulted in a modified gasifier system design which increased the off-gas heating value to 120 Btu/scf and the reduction of the melt to over 95%. This was an improvement that would potentially allow use of the scrubbed product gas as a feed to a combustion gas turbine without prior enrichment.

• Research Organization: Saint Regis Paper Co., West Nyack, NY (USA). Technical Operations Div.
• DOE Contract Number: AC05-80CS40341
• OSTI ID: 5560500
• Report Number(s): DOE/CS/40341-T4; ON: DE84002936
• Country of Publication: United States
• Language: English

Related Subjects

29 ENERGY PLANNING, POLICY, AND ECONOMY
290800 -- Energy Planning & Policy-- Heat Utilization-- (1980-)
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
BLACK LIQUIDS
CAPITALIZED COST
COGENERATION
COMBINED-CYCLE POWER PLANTS
COMPUTERIZED SIMULATION
COST
DEUS
ECONOMIC ANALYSIS
ECONOMICS
ENERGY SYSTEMS
FEASIBILITY STUDIES
FLUIDS
GASIFICATION
INDUSTRY
LIQUID WASTES
LIQUIDS
OPERATING COST
PAPER INDUSTRY
POWER GENERATION
POWER PLANTS
SIMULATION
STEAM GENERATION
TECHNOLOGY ASSESSMENT
THERMAL POWER PLANTS
THERMOCHEMICAL PROCESSES
WASTE PRODUCT UTILIZATION
WASTES
WOOD PRODUCTS INDUSTRY