Assessment of black liquor recovery boilers
In the paper making industry, pulpwood chips are digested and cooked to provide the pulp going to the refining and paper mills. Black liquor residue, containing the dissolved lignin binder from the chips, with a concentration of 12 to 16% solids, is further concentrated to 62 to 65% solids and mixed with salt cake, Sodium Sulfate (Na/sub 2/SO/sub 4/). The resulting concentrate of black liquor serves both as a fuel for generating steam in the boiler and also as the mother liquid from which other process liquors are recovered and recycled. Because the black liquor fuel contains high alkali concentrations, 18.3% sodium, 3.6% sulfur, an amount typical of midwestern bituminous coal, and measurable amounts of silica, iron oxides and other species, the black liquor boiler experience was reviewed for application to MHD boiler technology.
- Research Organization:
- Gilbert/Commonwealth, Reading, PA (USA)
- DOE Contract Number:
- AC01-77ET11058
- OSTI ID:
- 6722162
- Report Number(s):
- DOE/ET/11058-T3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
09 BIOMASS FUELS
090400* -- Solid Waste & Wood Fuels-- (-1989)
30 DIRECT ENERGY CONVERSION
300101 -- MHD Generators-- Design & Development
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
ALKALI METAL COMPOUNDS
BOILER FUELS
BOILERS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COMBUSTION
COMPARATIVE EVALUATIONS
CORROSION
DATA
DESIGN
DIAGRAMS
DIRECT ENERGY CONVERTERS
ENERGY RECOVERY
ENERGY SOURCES
EXPERIMENTAL DATA
FLOWSHEETS
FOSSIL FUELS
FUELS
HIGH TEMPERATURE
INDUSTRIAL WASTES
INDUSTRY
INFORMATION
LIQUID WASTES
MATERIALS
MHD GENERATORS
NUMERICAL DATA
OXIDATION
OXYGEN COMPOUNDS
PAPER INDUSTRY
RECOVERY
RECYCLING
SMELTING
SODIUM COMPOUNDS
SODIUM SULFATES
SPENT LIQUORS
STEAM GENERATION
STEAM GENERATORS
SULFATES
SULFUR COMPOUNDS
THERMOCHEMICAL PROCESSES
VAPOR GENERATORS
WASTE PRODUCT UTILIZATION
WASTES
WOOD PRODUCTS INDUSTRY
090400* -- Solid Waste & Wood Fuels-- (-1989)
30 DIRECT ENERGY CONVERSION
300101 -- MHD Generators-- Design & Development
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
ALKALI METAL COMPOUNDS
BOILER FUELS
BOILERS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COMBUSTION
COMPARATIVE EVALUATIONS
CORROSION
DATA
DESIGN
DIAGRAMS
DIRECT ENERGY CONVERTERS
ENERGY RECOVERY
ENERGY SOURCES
EXPERIMENTAL DATA
FLOWSHEETS
FOSSIL FUELS
FUELS
HIGH TEMPERATURE
INDUSTRIAL WASTES
INDUSTRY
INFORMATION
LIQUID WASTES
MATERIALS
MHD GENERATORS
NUMERICAL DATA
OXIDATION
OXYGEN COMPOUNDS
PAPER INDUSTRY
RECOVERY
RECYCLING
SMELTING
SODIUM COMPOUNDS
SODIUM SULFATES
SPENT LIQUORS
STEAM GENERATION
STEAM GENERATORS
SULFATES
SULFUR COMPOUNDS
THERMOCHEMICAL PROCESSES
VAPOR GENERATORS
WASTE PRODUCT UTILIZATION
WASTES
WOOD PRODUCTS INDUSTRY