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Title: Thermal and chemical remediation of mixed wastes

Abstract

A process is described for treating organic waste materials without venting gaseous emissions to the atmosphere which includes oxidizing the organic waste materials at an elevated temperature not less than about 500 C with a gas having an oxygen content in the range of from about 20% to about 70% to produce an oxidation product containing CO{sub 2} gas. The gas is then filtered to remove particulates, and then contacted with an aqueous absorbent solution of alkali metal carbonates or alkanolamines to absorb a portion of the CO{sub 2} gas from the particulate-free oxidation product. The CO{sub 2} absorbent is thereafter separated for further processing. A process and system are also disclosed in which the waste materials are contacted with a reactive medium such as lime and product treatment as described. 8 figs.

Inventors:
;
Issue Date:
Research Org.:
Univ. of Chicago, IL (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
563648
Patent Number(s):
5,697,307
Application Number:
PAN: 8-522,369
Assignee:
Univ. of Chicago, IL (United States) PTO; SCA: 320305; PA: EDB-98:014777; SN: 98001896315
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 16 Dec 1997
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; ORGANIC WASTES; OXIDATION; OFF-GAS SYSTEMS; CARBON DIOXIDE; ADSORPTION; AMINES; CARBONATES; ADSORBENTS; REGENERATION; WASTE PROCESSING

Citation Formats

Nelson, P.A., and Swift, W.M. Thermal and chemical remediation of mixed wastes. United States: N. p., 1997. Web.
Nelson, P.A., & Swift, W.M. Thermal and chemical remediation of mixed wastes. United States.
Nelson, P.A., and Swift, W.M. Tue . "Thermal and chemical remediation of mixed wastes". United States.
@article{osti_563648,
title = {Thermal and chemical remediation of mixed wastes},
author = {Nelson, P.A. and Swift, W.M.},
abstractNote = {A process is described for treating organic waste materials without venting gaseous emissions to the atmosphere which includes oxidizing the organic waste materials at an elevated temperature not less than about 500 C with a gas having an oxygen content in the range of from about 20% to about 70% to produce an oxidation product containing CO{sub 2} gas. The gas is then filtered to remove particulates, and then contacted with an aqueous absorbent solution of alkali metal carbonates or alkanolamines to absorb a portion of the CO{sub 2} gas from the particulate-free oxidation product. The CO{sub 2} absorbent is thereafter separated for further processing. A process and system are also disclosed in which the waste materials are contacted with a reactive medium such as lime and product treatment as described. 8 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {12}
}