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. 30, 2015
Filed:
Jun. 07, 2013
Karl Tze-tang Chuang, Edmonton, CA;
Tzong-bin Lin, Chia-Yi, TW;
Cheng-tsung Hong, Chia-Yi, TW;
Yung-sheng Ho, Chia-Yi, TW;
Kuang-yeu Wu, Plano, TX (US);
Karl Tze-Tang Chuang, Edmonton, CA;
Tzong-Bin Lin, Chia-Yi, TW;
Cheng-Tsung Hong, Chia-Yi, TW;
Yung-Sheng Ho, Chia-Yi, TW;
Kuang-Yeu Wu, Plano, TX (US);
AMT International Inc., Plano, TX (US);
CPC Corporation, Taiwan, Taipei, TW;
Abstract
Various substantially styrene-, methylstyrene- and ethylbenzene-free C6-C9 aromatic hydrocarbon blends are produced from a hydrocarbon feed stream containing C5-C9 aromatic hydrocarbons including styrene, methylstyrene and sulphur compounds by first separating the stream into a distillate containing C5-C7 hydrocarbons, and a bottoms fraction containing C8 and C9 hydrocarbons; and converting the styrene and methylstyrene to their corresponding ethers by reacting with a C1-C3 lower alcohol in the presence of a selective acidic etherification catalyst. The effluent may be sent to a gasoline pool for blending or the effluent is separated by distillation into an ether stream and either a C8 or a C8-C9 aromatic hydrocarbon rich stream. The C5-C7 distillate is hydrogenated.