Utilizing secondary heat to heat wash oil in the coke-oven gas desulfurization division
Removal of hydrogen sulfide from the coke-oven gas by the vacuum-carbonate method involves significant energy costs, comprising about 47% of the total costs of the process. This is explained by the significant demand of steam for regeneration of the wash oil, the cost of which exceeds 30% of the total operating costs. The boiling point of the saturated wash oil under vacuum does not exceed 70/sup 0/C, thus the wash oil entering the regenerator can be heated either by the direct coke-oven gas or by the tar supernatant from the gas collection cycle. Utilizing the secondary heat of the direct coke-oven gas and the tar supernatant liquor (the thermal effect is approximately the same) to heat the wash oil from the gas desulfurization shops significantly improves the industrial economic indices. Heating the wash oil from gas desulfurization shops using the vacuum-carbonate method by the heat of the tar supernatant liquor may be adopted at a number of coking plants which have a scarcity of thermal resources and which have primary coolers with vertical tubes.
- OSTI ID:
- 5399557
- Journal Information:
- Coke Chem. USSR (Engl. Transl.); (United States), Vol. 6; Other Information: Translated from Koks Khim.; No. 6, 39-40(1981)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
COAL GAS
DESULFURIZATION
COKING PLANTS
ENERGY CONSERVATION
WASTE HEAT UTILIZATION
HYDROGEN SULFIDES
REMOVAL
VACUUM CARBONATE PROCESS
CHALCOGENIDES
CHEMICAL REACTIONS
FLUIDS
GASES
HYDROGEN COMPOUNDS
INDUSTRIAL PLANTS
SULFIDES
SULFUR COMPOUNDS
WASTE PRODUCT UTILIZATION
320304* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Waste Heat Recovery & Utilization
010402 - Coal
Lignite
& Peat- Purification & Upgrading