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:
Dec. 14, 1982
Filed:
Oct. 30, 1981
Hugh W Nelson, West Hartford, CT (US);
George J Prohazka, Simsbury, CT (US);
Keith W Morris, Ashton, CA;
Combustion Engineering, Inc., Windsor, CT (US);
Abstract
Sawdust is mixed with partially concentrated black liquor from pulp manufacture. The sawdust, coated with the solids of the black liquor, is dried by heated air. The sawdust, coated with organic and inorganic black liquor solids, is fed to the hearth of a chemical recovery boiler. Combustion of the char formed on the boiler hearth produces heat which causes additional organic material to pyrolize. The inorganic material combines to form molten smelt. The moisture-laden, heated air from the dryer is introduced into the boiler with the secondary air and the smelt is tapped off into an aqueous solution to form green liquor.