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Title: Waste incinerator exhaust gas treatment and apparatus

Abstract

The disclosed treatment is for the removal of hydrogen halide constituents of an exhaust gas by means of a dry scrubbing agent to which the gas binds. The agent is sprayed into the gas in finely divided form just prior to flow of the gas through a register located at the entrance to a filter chamber. The agent is thus distributed evenly over the input of the filter and performs its binding function primarily while on the filter. The agent may be sprayed as a finely divided solid or as a fluid which rapidly dries to leave a coating of finely divided agent on the filter. Also disclosed is an apparatus for practicing the method, including a nozzle casing with a plurality of spray nozzles located in the gas passageway at the input side of a register at the entrance to the filter chamber housing an electrical filter. The filter elements of the filter are so designed that the gas passageways between them force the gas to make periodic, sudden changes in direction which lead to a pulsation and a resulting gas turbulence. The turbulence improves the action of the agent on the gases.

Inventors:
Publication Date:
OSTI Identifier:
6327100
Patent Number(s):
US 4243635
Assignee:
Von Roll L.A.G. (Switzerland)
Resource Type:
Patent
Resource Relation:
Patent Priority Date: Priority date 24 Feb 1977, Switzerland
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 42 ENGINEERING; INCINERATORS; FLUE GAS; POLLUTION CONTROL EQUIPMENT; AIR POLLUTION CONTROL; BINDERS; COATINGS; EXHAUST GASES; FILTERS; HYDROCHLORIC ACID; HYDROFLUORIC ACID; NOZZLES; SPRAYS; TURBULENCE; CONTROL; EQUIPMENT; FLUIDS; GASEOUS WASTES; GASES; HYDROGEN COMPOUNDS; INORGANIC ACIDS; POLLUTION CONTROL; WASTES; 320305* - Energy Conservation, Consumption, & Utilization- Industrial & Agricultural Processes- Industrial Waste Management; 424000 - Engineering- Pollution Control Equipment- (1980-1989); 420900 - Engineering- Waste Processing Plants & Equipment- (-1989)

Citation Formats

Aeberli, H. Waste incinerator exhaust gas treatment and apparatus. United States: N. p., 1981. Web.
Aeberli, H. Waste incinerator exhaust gas treatment and apparatus. United States.
Aeberli, H. 1981. "Waste incinerator exhaust gas treatment and apparatus". United States.
@article{osti_6327100,
title = {Waste incinerator exhaust gas treatment and apparatus},
author = {Aeberli, H},
abstractNote = {The disclosed treatment is for the removal of hydrogen halide constituents of an exhaust gas by means of a dry scrubbing agent to which the gas binds. The agent is sprayed into the gas in finely divided form just prior to flow of the gas through a register located at the entrance to a filter chamber. The agent is thus distributed evenly over the input of the filter and performs its binding function primarily while on the filter. The agent may be sprayed as a finely divided solid or as a fluid which rapidly dries to leave a coating of finely divided agent on the filter. Also disclosed is an apparatus for practicing the method, including a nozzle casing with a plurality of spray nozzles located in the gas passageway at the input side of a register at the entrance to the filter chamber housing an electrical filter. The filter elements of the filter are so designed that the gas passageways between them force the gas to make periodic, sudden changes in direction which lead to a pulsation and a resulting gas turbulence. The turbulence improves the action of the agent on the gases.},
doi = {},
url = {https://www.osti.gov/biblio/6327100}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 06 00:00:00 EST 1981},
month = {Tue Jan 06 00:00:00 EST 1981}
}