skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Catalytically enhanced packed tower scrubbing

Abstract

An enhanced wet scrubbing process for the treatment of gas streams containing odours and low level VOC`s is presented. It comprises essentially a single scrubbing column and a fixed bed catalytic reactor through which the dilute alkaline bleach scrubbing liquor is recirculated. The process has significant cost advantages over conventional chemical scrubbing technology, and copes well with peaks in odour levels. Traditional bleach scrubbing, and the improvements in process chemistry and the flowsheet afforded by inclusion of the catalyst, are discussed. The catalyst enables many of the well known problems associated with bleach scrubbing to be overcome, and facilitates odour removal efficiencies of greater than 99% in a single column. Pilot plant data from trials on sewage treatment works are presented. These show clearly the ability of the catalytically enhanced process to achieve sulphide and odour removals in excess of 99% in the single column. Case studies of some of the existing commercial installations are given, indicating the wide range of applications, industries and scale of the installed units. Comparative data are presented, measured on a commercial unit for the conventional operation of a bleach scrubber, and with the retrofitted catalyst in use. These data show clearly the benefits ofmore » the catalytic process in terms of removal efficiencies; and hence by inference also in equipment size and costs. The catalytic process is also shown to achieve very high removal efficiencies of organo-sulphides in a single column. 8 refs., 3 figs., 10 tabs.« less

Authors:
; ;  [1]
  1. ICI Katalco, Cleveland (United Kingdom)
Publication Date:
OSTI Identifier:
621354
Report Number(s):
CONF-960273-
TRN: 98:002183-0014
Resource Type:
Conference
Resource Relation:
Conference: Air and Waste Management Association (AWMA) specialty conference on emerging solutions to VOC and air toxics control, Clearwater Beach, FL (United States), 28 Feb - 1 Mar 1996; Other Information: PBD: 1996; Related Information: Is Part Of Emerging solutions to VOC and air toxics control; PB: 457 p.
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; SULFIDES; ORGANIC COMPOUNDS; VOLATILE MATTER; GASEOUS WASTES; SCRUBBING; HETEROGENEOUS CATALYSIS; EFFICIENCY

Citation Formats

Stitt, E H, Taylor, F J, and Kelly, K. Catalytically enhanced packed tower scrubbing. United States: N. p., 1996. Web.
Stitt, E H, Taylor, F J, & Kelly, K. Catalytically enhanced packed tower scrubbing. United States.
Stitt, E H, Taylor, F J, and Kelly, K. 1996. "Catalytically enhanced packed tower scrubbing". United States.
@article{osti_621354,
title = {Catalytically enhanced packed tower scrubbing},
author = {Stitt, E H and Taylor, F J and Kelly, K},
abstractNote = {An enhanced wet scrubbing process for the treatment of gas streams containing odours and low level VOC`s is presented. It comprises essentially a single scrubbing column and a fixed bed catalytic reactor through which the dilute alkaline bleach scrubbing liquor is recirculated. The process has significant cost advantages over conventional chemical scrubbing technology, and copes well with peaks in odour levels. Traditional bleach scrubbing, and the improvements in process chemistry and the flowsheet afforded by inclusion of the catalyst, are discussed. The catalyst enables many of the well known problems associated with bleach scrubbing to be overcome, and facilitates odour removal efficiencies of greater than 99% in a single column. Pilot plant data from trials on sewage treatment works are presented. These show clearly the ability of the catalytically enhanced process to achieve sulphide and odour removals in excess of 99% in the single column. Case studies of some of the existing commercial installations are given, indicating the wide range of applications, industries and scale of the installed units. Comparative data are presented, measured on a commercial unit for the conventional operation of a bleach scrubber, and with the retrofitted catalyst in use. These data show clearly the benefits of the catalytic process in terms of removal efficiencies; and hence by inference also in equipment size and costs. The catalytic process is also shown to achieve very high removal efficiencies of organo-sulphides in a single column. 8 refs., 3 figs., 10 tabs.},
doi = {},
url = {https://www.osti.gov/biblio/621354}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 31 00:00:00 EST 1996},
month = {Tue Dec 31 00:00:00 EST 1996}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: