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:
Feb. 22, 1983
Filed:
Nov. 04, 1980
Applicant:
Inventor:
William P Young, La Grange, IL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10B / ; C10B / ; C10B / ;
U.S. Cl.
CPC ...
202117 ; 15 9 / ; 202129 ; 202131 ; 202218 ; 202226 ; 202241 ;
Abstract
A process and apparatus for the pyrolysis of coal or other hydrocarbon bearing materials in which the material is fed into the upper end of a rotating cylinder and is heated in a plurality of stages, the heated material passing from the cylinder into a char pit, and treating the resulting materials to separate them into fuels having different characteristics. One feature of the invention is the addition of CaO or NaHCO.sub.3 to the charged materials and addition of H.sub.2 O in the char pit to facilitate removal of sulfur. Another feature is the scraping and brushing of the inside surfaces of the rotary cylinder to clean the interior of the cylinder during the conduct of the process.