Process for improved yields of high molecular weight olefins form lower molecular weight olefines

A technology of molecular weight and olefins, which is applied in the production of liquid hydrocarbon mixtures, organic chemical methods, and metathesis reactions to produce hydrocarbons, etc.

Inactive Publication Date: 2008-10-15
阿门·纳扎·阿巴扎建
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] In addition, the existing technology only uses the disproportionation and heterogeneous metal catalysts alone or in combination. As for the positio...

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  • Process for improved yields of high molecular weight olefins form lower molecular weight olefines
  • Process for improved yields of high molecular weight olefins form lower molecular weight olefines
  • Process for improved yields of high molecular weight olefins form lower molecular weight olefines

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Embodiment Construction

[0026] The present invention relates to a process for increasing the production of heavier olefins by using a hydrocarbon feedstock containing a substantially narrow range of lighter olefins, which feedstock is fed to a reactive distillation column at parameter 10. in such as figure 1 In at least one embodiment shown, the process of the present invention initially converts C to a predetermined point 11 in the reactive distillation column 10 6A hydrocarbon feedstock containing a substantially narrow range of lighter olefins and higher carbon numbers is fed to reactive distillation column 10 . Adjacent to the intended feed point 11 is an isomerization catalyst 14 which isomerizes the olefin-containing hydrocarbon feedstock as it enters the reactive distillation column 10 . like figure 1 As shown, the isomerization catalyst 14 should be located both adjacent to, directly above or below the predetermined feed point 11 to first isomerize the olefin-containing hydrocarbon feedstoc...

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Abstract

A process for improved yields of heavier olefins from a substantially narrow range of lighter hydrocarbon feed stock containing olefins in a reaction distillation column comprising feeding a narrow range of hydrocarbon feed stock containing olefin into a reaction distillation column at a point between its bottom and top, contacting the olefins at the point of feed with a disproportionation catalyst in alternating arrangement with an isomerization catalyst or a mixture thereof and keeping the reaction mixture in a state of vapor-liquid equilibrium for concentrating the lighter reaction products in the vapor phase and the heavier reaction products in the liquid phase by maintaining a controlled pressure and temperature profile in the reactive distillation column and for reactively creating the desired heavier molecular weight olefins over the catalysts and collecting it as bottoms product and removing the lighter molecular weight olefins overhead from the top of the reactive distillation column.

Description

technical field [0001] This application is a continuation-in-part of Application Serial No. 09 / 828,771, filed April 9,2001. [0002] The present invention relates to a controlled method of increasing the production of heavier olefins by using a hydrocarbon feedstock containing a substantially narrow range of lighter olefins, which feedstock is introduced into a reactive distillation column at predetermined points relative to those containing the narrow range The feed point of the hydrocarbon feedstock of lighter olefins is predetermined, and the isomerization and disproportionation catalysts are placed in different forms. The control method maintains the reaction mixture in a state of vapor / liquid equilibrium in order to separate the lighter products at the top from the heavier reaction products collected at the bottom by maintaining a controlled pressure and temperature profile. The pressure and temperature profiles are related to the hydrocarbon feedstock used containing a ...

Claims

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Application Information

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IPC IPC(8): C07C5/25C07C6/04B01D3/14C07B61/00C07C2/24C07C5/22C07C7/04C07C11/02C10G7/00C10G50/00
CPCC07C2523/28C07C2523/36C07C2523/04C07C5/226C07C2523/30C07C6/04C07C11/02Y02P20/10
Inventor 阿门·纳扎·阿巴扎建
Owner 阿门·纳扎·阿巴扎建
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