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:
Oct. 23, 2007
Filed:
Apr. 27, 2004
Terence B. Walker, South Bend, IN (US);
Craig B. Shumaker, Newark, DE (US);
Terence B. Walker, South Bend, IN (US);
Craig B. Shumaker, Newark, DE (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
Method for removing tar-forming hydrocarbons from an effluent gas mixtures from Chemical Vapor Deposition or Chemical Vapor Infiltration processes. Method includes passing at elevated temperature effluent gas mixture containing hydrogen, methane, and high molecular weight hydrocarbons through a bed that contains iron pellets, thereby decomposing tar-forming high molecular weight hydrocarbons in the effluent gas mixture. Apparatus including a de-tarring vessel () having a packed bed () of iron or iron oxide pellets () resting over a perforated distributor plate () and having an exhaust port (), said de-tarring vessel being operatively linked via an exhaust port () to a CVI or CVD reactor vessel.