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Catalyst for producing high-octane-number component gasoline as well as preparation method and application thereof

A technology with high octane number and catalyst, applied in the direction of catalyst activation/preparation, molecular sieve catalyst, chemical instruments and methods, etc., can solve the problem of unsatisfactory gasoline aromatics content and octane number in gasoline yield, and achieve the protection of modifying elements , The preparation process is simple, and the effect of slowing down the release effect

Active Publication Date: 2021-02-19
SYNFUELS CHINA INNER MONGOLIA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the traditional heavy oil catalytic cracking catalyst with modified Y or USY molecular sieve as the main active component is not suitable for the conversion of Fischer-Tropsch synthesis heavy hydrocarbon catalytic cracking to gasoline. value is not ideal

Method used

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  • Catalyst for producing high-octane-number component gasoline as well as preparation method and application thereof
  • Catalyst for producing high-octane-number component gasoline as well as preparation method and application thereof
  • Catalyst for producing high-octane-number component gasoline as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0123] Preparation of phosphoraluminum glue binder: 4108g pseudoboehmite and 10969g deionized water were stirred and beaten for 15min, then slowly added 8483g phosphoric acid (85wt%) at a rate of about 40g / min, and the temperature of the control system was below 75°C. Then add 3440g hydrochloric acid (33wt%), continue to stir for 30min to obtain translucent phosphorus-aluminum glue as a low-aluminum binder, measured pH=2.2, viscosity (25°C) is 65mPa·s, calculated as aluminum / bonding agent total dry The aluminum content on a basis was 18.3 wt%.

[0124] Catalyst preparation: Mix 2579g zinc-modified ZSM-11 molecular sieve (modified by impregnation method), 737g iron-modified ZSM-5 molecular sieve (modified by impregnation method) and 4800g deionized water at 50°C, then add 315g Urea was stirred and beaten for 90 minutes to obtain a modified molecular sieve slurry; 4433g kaolin was mixed with 6510g deionized water at 50°C, and then 668g phosphoric acid (concentration 85wt%) was a...

Embodiment 2

[0127] Mix 2303g of nickel phosphorus modified ZSM-5 / ZSM-11 mixed crystal molecular sieve (modified by impregnation method) and 4800g of deionized water at 60°C, then add 131g of n-butylamine and stir for 30 minutes to obtain a modified molecular sieve slurry; 5522g of perlite and 6940g of deionized water were mixed at 60°C, then 1318g of ammonium dihydrogen phosphate particles were added and stirred for 120min to obtain a modified matrix slurry; The base aluminum content is 0.3wt% (impurity aluminium)) is added in above-mentioned modified substrate slurry, stirs 30min, adds modified molecular sieve slurry, stirs 30min, obtains catalyst slurry, the solid content of gained catalyst slurry is 32wt%. The above-mentioned catalyst slurry was emulsified and homogenized, and the viscosity (25°C) was measured to be 6220mPa·s, spray-dried into microspheres, and the formed microspheres were calcined at 600°C for 1 hour to obtain the finished microspherical catalyst, which was designated ...

Embodiment 3

[0130] Mix 829g cadmium modified EU-1 molecular sieve (modified by ion exchange method), 2395g silver modified ZSM-35 molecular sieve (modified by ion exchange method) and 4800g deionized water at 50°C, then add 184g hexadiene Amine was stirred and beaten for 40 minutes to obtain a modified molecular sieve slurry; 4338g of montmorillonite and 6164g of deionized water were mixed at 80°C, and then 748g of diammonium hydrogen phosphate particles were added and stirred for 90 minutes to obtain a modified matrix slurry; 2333g of Example 1 Prepared phosphoraluminum glue binder and 3208g acidic silica sol binder (the aluminum content is 7.9wt% according to the total dry basis of aluminum / bonding agent) join in the above-mentioned modified matrix slurry successively, stir 30min, The modified molecular sieve slurry was added and stirred for 30 minutes to obtain a catalyst slurry with a solid content of 38 wt%. The viscosity (25°C) of the catalyst slurry was measured to be 5300mPa·s aft...

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Abstract

The invention relates to a catalyst for producing high-octane-number component gasoline from Fischer-Tropsch synthesis heavy hydrocarbon. The catalyst comprises a modified ten-membered ring pore molecular sieve, a modified matrix and a low-aluminum binder in a dry basis mass ratio of (10-70): (80-5): (10-25), wherein the modified matrix is modified clay, and the aluminum content of the low-aluminum binder is 0-35 wt% based on the dry basis of the aluminum / binder. Moreover, the invention also relates to a method for preparing the catalyst and application of the catalyst in a method for producing high-octane-value component gasoline by taking Fischer-Tropsch synthesis heavy hydrocarbon as a raw material. When the catalyst provided by the invention is applied to catalytic cracking reaction ofFischer-Tropsch synthesis of heavy hydrocarbons, the gasoline yield is reasonable, the aromatic hydrocarbon content of gasoline is higher, and the octane value is higher. The performance of the catalyst is obviously superior to that of typical traditional heavy oil catalytic cracking reaction catalysts.

Description

technical field [0001] The invention belongs to the technical field of secondary processing of synthesis gas conversion products, and specifically relates to a catalyst for producing high-octane gasoline from Fischer-Tropsch synthesis of heavy hydrocarbons, a preparation method and application thereof. Background technique [0002] In recent years, with the development of the global economy, the consumption of gasoline has increased, and the problem of air pollution caused by gasoline combustion has become increasingly serious. However, the technical and economic costs required to further reduce the sulfur and nitrogen pollutants in gasoline in the traditional petroleum refining process are very high. Therefore, the development of new high-clean gasoline production technology is of great significance to alleviate the pollution problem of traditional gasoline. [0003] The Fischer-Tropsch synthesis technology completes the removal of sulfur and nitrogen pollutants in the synt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/80B01J37/00C10G11/05
CPCB01J29/80B01J37/0009C10G11/05B01J29/405B01J29/46B01J29/67B01J29/7073B01J29/185B01J29/7676B01J29/7057B01J2229/18B01J2229/42C10G2300/1022C10G2400/02
Inventor 李永旺申宝剑郝坤陶智超郭艳申波俊尹烁卢银花王新娟樊莲莲师海峰张玲李江孟劭聪王缠和杨勇
Owner SYNFUELS CHINA INNER MONGOLIA CO LTD
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