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:
Nov. 05, 2013
Filed:
Dec. 01, 2010
Wei-bin Su, Chiayi, TW;
Hsun-yi Huang, Chiayi, TW;
Jyh-haur Hwang, Chiayi, TW;
Tzong-bin Lin, Chiayi, TW;
Cheng-tsung Hong, Chiayi, TW;
Hung-chung Shen, Chiayi, TW;
Karl T. Chuang, Chiayi, TW;
Wei-Bin Su, Chiayi, TW;
Hsun-Yi Huang, Chiayi, TW;
Jyh-Haur Hwang, Chiayi, TW;
Tzong-Bin Lin, Chiayi, TW;
Cheng-Tsung Hong, Chiayi, TW;
Hung-Chung Shen, Chiayi, TW;
Karl T. Chuang, Chiayi, TW;
CPC Corporation, Taiwan, Taipei, TW;
Abstract
A dual-bed catalytic distillation tower has a catalytic column having an upper catalytic bed filled with low temperature dehydration catalysts and a lower catalytic bed filled with high temperature dehydration catalysts. When using the dual-bed catalytic distillation tower, the feed may be fed to the tower at the top of the upper catalytic bed, between the upper and lower catalytic beds, or at the bottom of the lower catalytic bed for dehydration to obtain DME. The dual-bed catalytic distillation tower has the advantage of flexible set up depending on various feeds, such as anhydrous or crude methanol and on different grades of DME to be obtained.