The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 01, 1980
Filed:
Dec. 06, 1978
Applicant:
Inventors:
Donald A Keyworth, Houston, TX (US);
Jerome R Sudduth, Pasadena, TX (US);
Assignee:
Tenneco Chemicals, Inc., Saddle Brook, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B / ; B08B / ;
U.S. Cl.
CPC ...
134-2 ; 134 / ; 134 26 ; 134 42 ;
Abstract
Heat exchangers and other equipment whose surfaces have become fouled with sludge deposits during the use of the equipment in the removal of carbon monoxide, lower olefins, or other complexible ligands from gas streams with a liquid sorbent that comprises a cuprous aluminum tetrahalide and an aromatic hydrocarbon solvent are cleaned by contacting the fouled surfaces of the equipment with an aqueous ammonium chloride solution to dissolve and/or loosen substantially all of the deposited sludge, washing the surfaces with water to remove loosened sludge and residual cleaning solution, and drying them.