Process for control of pollutants generated during coal gasification
Abstract
The present invention is directed to an improvement in the coal gasification process that effectively eliminates substantially all of the environmental pollutants contained in the producer gas. The raw producer gas is passed through a two-stage water scrubbing arrangement with the tars being condensed essentially water-free in the first stage and lower boiling condensables, including pollutant laden water, being removed in the second stage. The pollutant-laden water is introduced into an evaporator in which about 95 percent of the water is vaporized and introduced as steam into the gas producer. The condensed tars are combusted and the resulting products of combustion are admixed with the pollutant-containing water residue from the evaporator and introduced into the gas producer.
- Inventors:
-
- Pittsburgh, PA
- Sewickley, PA
- Issue Date:
- OSTI Identifier:
- 863456
- Patent Number(s):
- 4175929
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10J - PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES
- DOE Contract Number:
- E(49-18)-2250
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- process; control; pollutants; generated; coal; gasification; directed; improvement; effectively; eliminates; substantially; environmental; contained; producer; gas; raw; passed; two-stage; water; scrubbing; arrangement; tars; condensed; essentially; water-free; stage; boiling; condensables; including; pollutant; laden; removed; pollutant-laden; introduced; evaporator; 95; percent; vaporized; steam; combusted; resulting; products; combustion; admixed; pollutant-containing; residue; gas producer; resulting product; coal gasification; gasification process; coal gas; containing water; resulting products; effectively eliminate; environmental pollutants; environmental pollutant; effectively eliminates; /48/95/
Citation Formats
Frumerman, Robert, and Hooper, Harold M. Process for control of pollutants generated during coal gasification. United States: N. p., 1979.
Web.
Frumerman, Robert, & Hooper, Harold M. Process for control of pollutants generated during coal gasification. United States.
Frumerman, Robert, and Hooper, Harold M. Mon .
"Process for control of pollutants generated during coal gasification". United States. https://www.osti.gov/servlets/purl/863456.
@article{osti_863456,
title = {Process for control of pollutants generated during coal gasification},
author = {Frumerman, Robert and Hooper, Harold M},
abstractNote = {The present invention is directed to an improvement in the coal gasification process that effectively eliminates substantially all of the environmental pollutants contained in the producer gas. The raw producer gas is passed through a two-stage water scrubbing arrangement with the tars being condensed essentially water-free in the first stage and lower boiling condensables, including pollutant laden water, being removed in the second stage. The pollutant-laden water is introduced into an evaporator in which about 95 percent of the water is vaporized and introduced as steam into the gas producer. The condensed tars are combusted and the resulting products of combustion are admixed with the pollutant-containing water residue from the evaporator and introduced into the gas producer.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 1979},
month = {Mon Jan 01 00:00:00 EST 1979}
}