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Method for preparing propylene yield increasing auxiliary agent by using Fischer-Tropsch synthesis catalyst fine powder, product and application

A technology of Fischer-Tropsch synthesis and propylene additives, applied in the direction of carbon compound catalysts, catalysts, molecular sieve catalysts, etc., can solve the problems of underutilization, etc., and achieve the effect of saving treatment costs, extending the product chain, and eliminating solid waste.

Active Publication Date: 2022-02-25
HEBEI XINPENG CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Molecular sieves are usually used as adsorbents or as one of the raw materials for preparing catalysts. Although catalyst fine powders are used to prepare molecular sieves, solid waste and cost are reduced, many effective components in Fischer-Tropsch synthesis catalyst fine powders are not fully utilized.

Method used

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  • Method for preparing propylene yield increasing auxiliary agent by using Fischer-Tropsch synthesis catalyst fine powder, product and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] This embodiment provides a kind of preparation method of FCC production increasing propylene auxiliary agent, specifically comprises the following steps:

[0045] (1) Add 1600kg of deionized water, 425kg of silica sol, and 750kg of kaolin to the beating kettle successively, and stir for 30min;

[0046] (2) Add 500kg of deionized water and 315kg of phosphoric acid to the acid adding kettle successively, and stir for 10min;

[0047] (3) Add 700kg of deionized water and 820kg of ZSM-5 molecular sieve (dry basis) to the gelling kettle successively, and stir for 10 minutes;

[0048] (4) Add 300 kg of deionized water and 60 kg of Fischer-Tropsch synthesis catalyst fine powder to the auxiliary agent kettle successively, and stir for 10 min;

[0049] (5) Add the material described in step (2) to the beating kettle described in step (1), and stir for 30 minutes;

[0050] (6) Add the material obtained in step (3) into the beating kettle described in step (5), and stir for 60 min;...

Embodiment 2

[0056] This embodiment provides a kind of preparation method of FCC production increasing propylene auxiliary agent, specifically comprises the following steps:

[0057] (1) Add 1600kg of deionized water, 425kg of silica sol, and 750kg of kaolin to the beating kettle successively, and stir for 30min;

[0058] (2) Add 500kg of deionized water and 315kg of phosphoric acid to the acid adding kettle successively, and stir for 10min;

[0059] (3) Add 700kg of deionized water and 820kg of ZSM-5 molecular sieve (dry basis) to the gelling kettle successively, and stir for 10 minutes;

[0060] (4) Add 300kg of deionized water and 70kg of Fischer-Tropsch synthesis catalyst fine powder to the auxiliary agent kettle successively, and stir for 10min;

[0061] (5) Add the material obtained in step (2) to the beating kettle described in step (1), and stir for 30 minutes;

[0062] (6) Add the material obtained in step (3) into the beating kettle described in step (5), and stir for 60 min; ...

Embodiment 3

[0068] This embodiment provides a kind of preparation method of FCC production increasing propylene auxiliary agent, specifically comprises the following steps:

[0069] (1) Add 1600kg of deionized water, 425kg of silica sol, and 750kg of kaolin to the beating kettle successively, and stir for 30min;

[0070] (2) Add 500kg of deionized water and 315kg of phosphoric acid to the acid adding kettle successively, and stir for 10min;

[0071] (3) Add 700kg of deionized water and 820kg of ZSM-5 molecular sieve (dry basis) to the gelling kettle successively, and stir for 10 minutes;

[0072] (4) Add 300kg of deionized water and 80kg of Fischer-Tropsch synthesis catalyst fine powder to the auxiliary agent kettle successively, and stir for 10min;

[0073] (5) Add the material obtained in step (2) to the beating kettle described in step (1), and stir for 30 minutes;

[0074] (6) Add the material obtained in step (3) into the beating kettle described in step (5), and stir for 60 min; ...

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Abstract

The invention provides a method for preparing a propylene yield increasing auxiliary agent by using Fischer-Tropsch synthesis catalyst fine powder, a product and application. The method comprises the following steps of (1) mixing and stirring silica sol, kaolin and water, adding a phosphoric acid solution, and uniformly mixing to obtain slurry A, (2) adding a ZSM-5 molecular sieve and Fischer-Tropsch synthesis catalyst fine powder into the slurry A, uniformly mixing, and filtering to obtain slurry B, and (3) pressurizing the slurry B, and carrying out spray drying to obtain the finished product of the propylene additive capable of increasing yield. According to the method, the Fischer-Tropsch synthesis catalyst fine powder and the ZSM-5 molecular sieve are utilized to synergistically strengthen the effect of the propylene yield increasing aid, so that the yield of propylene in liquefied gas is increased.

Description

technical field [0001] The invention relates to the field of catalyst recovery, in particular to a method, product and application for preparing a propylene production-increasing auxiliary agent using Fischer-Tropsch synthesis catalyst fine powder. Background technique [0002] During the production and use of the Fischer-Tropsch synthesis catalyst, catalyst fine powder is produced, and carbonization may occur on the surface of the Fischer-Tropsch synthesis catalyst after use. Due to the wide variety of Fischer-Tropsch synthesis catalysts and large differences in components, the utilization methods of their fine powders vary widely. Among them, resource utilization, reduction of solid waste and clean production are the main directions for the reuse of Fischer-Tropsch synthesis catalysts. [0003] Fischer-Tropsch synthesis catalyst fine powder mainly has two kinds of utilization modes, and a kind of utilization mode is that the Fischer-Tropsch synthesis catalyst fine powder i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/46C07C11/06B01J35/02B01J35/10C07C5/333C07C4/06C10G11/05
CPCB01J29/46C07C5/3335C07C5/333C07C4/06C10G11/05C07C2529/80C07C2529/46B01J2229/20B01J35/40B01J35/615C07C11/06Y02P20/52
Inventor 常瑞峰张春辉潘磊田英杰王刚曾庆义王金达牛月民
Owner HEBEI XINPENG CHEM CO LTD
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