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:
Jun. 12, 2012
Filed:
Jul. 09, 2009
John D. Y. Ou, Houston, TX (US);
Glenn A. Heeter, The Woodlands, TX (US);
Paul F. Keusenkothen, Houston, TX (US);
James N. Mccoy, Houston, TX (US);
Judith Hey, Legal Representative, Morristown, NJ (US);
John D. Y. Ou, Houston, TX (US);
Glenn A. Heeter, The Woodlands, TX (US);
Paul F. Keusenkothen, Houston, TX (US);
James N. McCoy, Houston, TX (US);
Judith Hey, legal representative, Morristown, NJ (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
A process and apparatus are provided for upgrading steam cracker tars from steam crackers. The invention also relates to a steam cracking process and apparatus for reducing yields of tars produced from steam cracking while increasing yields of higher value products by heating steam cracker tar, in the presence of hydrogen donor compounds, e.g., tetralin. The hydrogen donor compounds can be provided in a hydrogen donor-rich hydrocarbon stream, e.g., light cycle oils, or low sulfur vacuum tower bottoms. The treated tar can be separated into gas oil, fuel oil and tar streams.