How to manufacture low-grade Olefin from an oxygen content compound - DALIAN INSTITUTE OF CHEMICAL PHYSICS,CHINESE ACADEMY OF SCIENCES

Title:

How to manufacture low-grade Olefin from an oxygen content compound

Document Type and Number:

Japanese Patent JP6189544

Kind Code:

B2

Abstract:

The present invention relates to a method for improving the light olefin yield in the process of preparation of a light olefin using an oxygen-containing compound. More specifically, the present invention provides a method for preparing a light olefin using an oxygen-containing compound, in which, a multi-stage dense phase fluidized bed comprising k secondary pre-carbon deposition zones (k¥1) and n secondary reaction zones (n¥1) is used as a reactor, and a multi-stage dense phase fluidized bed regenerator comprising m secondary regeneration zones (m¥2) is used as a main equipment. By the method of re-refining the hydrocarbons with four or more carbons obtained in the separation section, or adding naphtha, gasoline, condensate oil, light diesel oil, hydrogenation tail oil or kerosene in the reaction zone, the invention primarily solves the problems in the prior art of the uniformity of carbon deposition amount and the carbon content of the catalyst being difficult to control, and the light olefin yield being low.

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Inventors:

Liu, Zhongmin
Yeah, Mao
Chan, Tao
Ha, Chinkin
One, Siengao
Zao, Infen

Application Number:

JP2016535725A

Publication Date:

August 30, 2017

Filing Date:

December 03, 2013

Export Citation:

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