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Hydrocarbon oil desulfurization catalyst containing Fau structure and/or Bea structure molecular sieve and preparation method and process

A technology of desulfurization catalyst and molecular sieve, which is applied in the field of hydrocarbon oil desulfurization, can solve the problems of increasing operating costs and easy wear of catalysts, and achieve the effects of reducing operating and application costs, good anti-wear performance, and high octane number of gasoline

Active Publication Date: 2022-03-11
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 Fau structure and/or Bea structure molecular sieve and preparation method and process
  • Hydrocarbon oil desulfurization catalyst containing Fau structure and/or Bea structure molecular sieve and preparation method and process
  • Hydrocarbon oil desulfurization catalyst containing Fau structure and/or Bea structure molecular sieve and preparation method and process

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preparation example Construction

[0036] 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-storing metal oxide and / or the precursor of the sulfur-storing metal oxide, the precursor of the zirconia binder, Boron nitride, molecular sieves with FAU structure and / or molecular sieves with BEA structure, water, and acidic liquid are mixed to obtain carrier slurry; wherein, the pH value of the carrier slurry is 1-5; b. The obtained carrier slurry is spray-dried and formed in sequence , the first drying and the first roasting to obtain the catalyst carrier; c, after introducing the precursor of the metal promoter into the catalyst carrier, carry out the second drying and the second roasting successively; optional d, the product obtained in step c in a hydrogen-containing atmosphere Reduction treatment is carried out under the atmosphere; a hydrocarbon oil desulfurization catalyst ...

Embodiment approach

[0047] One embodiment, the present invention specifically includes the following solutions:

[0048] 1. A desulfurization catalyst comprising:

[0049] 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;

[0050] 2) Inorganic binder, preferably zirconia;

[0051] 3) The carrier component is boron nitride (preferably hexagonal phase boron nitride) or said boron nitride and oxides, nitrides, carbides, oxynitrides, carbonitrides, carbon oxides selected from element A and a combination of one or more of oxycarbonitride, wherein the elem...

Embodiment 1

[0099] 1.91kg of zirconium tetrachloride (Beijing Chemical Plant, analytically pure, 99% by weight) was slowly added to 3.0kg of deionized water, and 4.6kg of 5% by weight of nitric acid solution was added, slowly stirred to avoid the precipitation of zirconia crystals, and obtained Light yellow transparent zirconium sol pH=2.1;

[0100] With 4.43kg of zinc oxide powder (Headhorse company, purity 99.7% by weight), 0.88kg of Hβ molecular sieve (Sinopec Catalyst Qilu Branch, containing dry basis 0.70kg, SiO 2 :Al 2 o 3 The molar ratio is 8), 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, Hβ molecular sieve and hexagonal boron nitride are obtained. A mixed slurry of boron nitride; then adding the above-mentioned zirconium sol, mixing and stirring for 1 hour to obtain a carrier slurry;

[0101] The resulting carrier slurry was use...

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Abstract

The present invention relates to a hydrocarbon oil desulfurization catalyst containing FAU structure and / or BEA structure molecular sieve, its preparation method and the process of hydrocarbon oil desulfurization, based on the weight of the hydrocarbon oil desulfurization catalyst, or based on the weight of sulfur storage metal oxide Based on the total weight of zirconia binder, boron nitride, FAU structure and / or BEA structure molecular sieve and metal promoter, the hydrocarbon oil desulfurization catalyst contains 10-80% by weight of sulfur-storing metal oxides in terms of oxides , 3-35% by weight of zirconia binder based on oxide, 5-40% by weight of boron nitride, 1-20% by weight of FAU structure molecular sieve and / or BEA structure molecular sieve based on dry basis, and metal 5‑30% by weight metal accelerator based on the element. When the hydrocarbon oil desulfurization catalyst provided by the invention is used in a hydrocarbon oil desulfurization process, it has the advantages of high stability, good desulfurization activity and good wear resistance.

Description

technical field [0001] The invention relates to a hydrocarbon oil desulfurization catalyst containing FAU structure and / or BEA structure 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 us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/08B01J29/70C10G45/12
Inventor 林伟田辉平宋烨王磊刘俊
Owner CHINA PETROLEUM & CHEM CORP
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