Orientated reaction catalytic cracking method with no oxygen for direct conversion of low carbon alkane

Abstract

A directional catalytic cracking process for direct conversion of low-C paraffin without oxygen includes reaction between raw petroleum hydrocarbon and the hot cracking catalyst coming from the first generator in the first reactor, separating oil gas from the catalyst with carbon deposit, stripping the catalyst, regenerating it in the second regenerator, delivering the oil gas into the following separating system, reaction between low-C paraffin and the aromatizing catalyst from the second regenerator in the second reactor to convert low-C paraffin to arylhydrocarbon and H2, separating them from the catalyst with carbon deposit, stripping and regenerating the catalyst and separating H2 from arylhydrocarbon.

Description

technical field [0001] The invention belongs to a directional reaction catalytic cracking method for direct conversion of low-carbon alkanes without oxygen, and more specifically relates to a combination of low-carbon alkanes aromatization and hydrocarbon oil catalytic cracking. Background technique [0002] In the petroleum processing industry, catalytic cracking technology and engineering is one of the most important process engineering. At present, most of the raw materials processed by catalytic cracking are heavy raw materials, such as wax oil, atmospheric or vacuum residue and other inferior raw materials. In addition to the development of cracking catalysts and additives suitable for various heavy and inferior raw materials, the technological development , It also includes various heat recovery technologies and improvements to reactors or regenerators to meet new needs and achieve certain purposes or effects. Such as the development of new catalysts and additives for...

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Problems solved by technology

Therefore, it is difficult to directly utilize methane alone