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Hydrocarbon oil desulfurization catalyst containing MFI structural molecular sieve as well as preparation method of catalyst and hydrocarbon oil desulfurization process

A technology of desulfurization catalyst and molecular sieve, which is applied in molecular sieve catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of easy wear and tear of catalysts and increase operating costs, and achieve good wear resistance and reduce operating and application costs , the effect of high breakthrough sulfur capacity

Active Publication Date: 2019-05-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, this type of catalyst is prone to wear and tear during use, and the catalyst needs to be continuously replenished, which increases operating costs

Method used

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  • Hydrocarbon oil desulfurization catalyst containing MFI structural molecular sieve as well as preparation method of catalyst and hydrocarbon oil desulfurization process
  • Hydrocarbon oil desulfurization catalyst containing MFI structural molecular sieve as well as preparation method of catalyst and hydrocarbon oil desulfurization process
  • Hydrocarbon oil desulfurization catalyst containing MFI structural molecular sieve as well as preparation method of catalyst and hydrocarbon oil desulfurization process

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preparation example Construction

[0033] The present invention also provides the preparation method of the hydrocarbon oil desulfurization catalyst provided by the present invention, the preparation method comprising: a, the sulfur storage metal oxide and / or the precursor of the sulfur storage metal oxide, the precursor of the inorganic oxide binder , boron nitride, molecular sieve with MFI structure, water and acidic liquid are mixed to obtain a carrier slurry; wherein, the pH value of the carrier slurry is 1-5; b, the obtained carrier slurry is spray-dried and formed, first dried and second 1. Roasting to obtain a catalyst carrier; c. Introducing the precursor of the metal promoter into the catalyst carrier and then performing the second drying and second calcination in sequence; optionally d. Reducing the product obtained in step c under a hydrogen-containing atmosphere; A hydrocarbon oil desulfurization catalyst is obtained.

[0034] According to the present invention, the precursor of the inorganic oxide ...

Embodiment approach

[0044] One embodiment, the present invention specifically includes the following solutions:

[0045] 1. A desulfurization catalyst comprising:

[0046] 1) Sulfur-storage metal oxides, wherein the sulfur-storage metal is selected from one or more of the metals of Group IIB of the Periodic Table of the Elements, the metals of Group VB of the Periodic Table of the Elements, and the metals of Group VIB of the Periodic Table of the Elements, preferably selected from One or more of zinc, cadmium, niobium, tantalum, chromium, molybdenum, tungsten and vanadium, more preferably one or more selected from zinc, molybdenum and vanadium, more preferably zinc;

[0047] 2) Inorganic binder, preferably one or more selected from heat-resistant inorganic oxides, more preferably selected from one or more of aluminum oxide, silicon oxide, titanium oxide and tin oxide, more preferably selected from One or more of aluminum oxide, titanium oxide and tin oxide;

[0048] 3) The carrier component is ...

Embodiment 1

[0096] Get 2.38kg of titanium tetrachloride (Beijing Chemical Plant, analytically pure, 99% by weight) slowly add 4.6kg of 5% by weight of dilute hydrochloric acid, stir slowly to avoid the precipitation of titanium oxide crystals, and obtain a light yellow transparent titanium sol pH=2.0 ;

[0097] With 4.43kg of zinc oxide powder (Headhorse company, purity 99.7% by weight), 0.76kg of HZSM-5 molecular sieve (Sinopec Catalyst Qilu Branch, containing dry basis 0.70kg, SiO 2 :Al 2 o 3 The molar ratio is 30), 2.06kg of hexagonal boron nitride (purity>99.0%, Qinhuangdao Yinuo High-tech Material Development Co., Ltd.) and 6.57kg of deionized water are mixed, and after stirring for 30 minutes, zinc oxide, HZSM-5 molecular sieve and a mixed slurry of hexagonal boron nitride; then add the above-mentioned titanium sol, mix and stir for 1 hour to obtain a carrier slurry with a pH value of 3.5;

[0098] The resulting carrier slurry was used in Niro Bowen Nozzle Tower TM The model spr...

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Abstract

The invention relates to a hydrocarbon oil desulfurization catalyst containing an MFI structural molecular sieve as well as a preparation method of the catalyst and a hydrocarbon oil desulfurization process. Based on a weight of the hydrocarbon oil desulfurization catalyst or a total weight of a sulfur storage metal oxide, an inorganic oxide bonding agent, boron nitride, the MFI structural molecular sieve and a metal promoter, the hydrocarbon oil desulfurization catalyst contains the following components: 10-80% by weight of the sulfur storage metal oxide based on an oxide, 3-35% weight by weight of the inorganic oxide bonding agent based on an oxide, 5-40% by weight of the boron nitride, 1-20% by weight of the MFI structural molecular sieve on a dry basis and 5-30% by weight of the metalpromoter based on a metal element. The hydrocarbon oil desulfurization catalyst provided by the invention has the advantages of high stability, good desulfurization activity and good wear resistance when applied to the hydrocarbon oil desulfurization process.

Description

technical field [0001] The invention relates to a hydrocarbon oil desulfurization catalyst containing MFI structural molecular sieve, a preparation method thereof and a hydrocarbon oil desulfurization process. Background technique [0002] With the increasing scarcity of crude oil resources, how to effectively utilize limited resources to produce light products in a large amount has become the goal pursued by refinery technology developers. On the other hand, with the continuous improvement of environmental protection requirements, environmental protection regulations are becoming increasingly strict. The current gasoline quality standard GB17930-2013 requires that the sulfur content in gasoline must be less than 10ppm from January 1, 2017. Therefore, the clean product production technology that can simultaneously increase the yield of the target product has become the choice of many refiners. [0003] In my country, catalytic cracking has been widely used due to its good o...

Claims

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Application Information

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IPC IPC(8): B01J29/40C10G45/12
Inventor 田辉平林伟宋烨刘俊王磊
Owner CHINA PETROLEUM & CHEM CORP
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