Regular structure desulfurization catalyst and preparation method thereof, and sulfur-containing hydrocarbon desulfurization method
A technology of desulfurization catalyst and regular structure, which is applied in the field of desulfurization of sulfur-containing hydrocarbons. It can solve the problems of desulfurization activity and desulfurization stability, affect the implementation effect of desulfurization of sulfur-containing hydrocarbons, and reduce the octane number of gasoline products, so as to increase the stability of desulfurization. non-toxic, not easy to lose and aggregate, and improves the effect of octane number
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0028] At the same time, the present invention also provides a method for preparing a desulfurization catalyst with a regular structure, the preparation method comprising the following steps: S1, a precursor of an oxide of at least one metal selected from groups IIA and IIB, optionally The rare earth oxide precursor, silicon oxide source and alumina source are mixed to prepare a matrix coating slurry; S2, coating the matrix coating slurry on a regular structure carrier, drying and firing to form a matrix coating slurry in the regular structure carrier Forming a matrix coating on the surface and / or the outer surface to obtain a catalyst carrier; S3, contacting the catalyst carrier with a transition metal precursor solution, drying and roasting to form a transition metal oxide on the matrix coating Material, obtain catalyst precursor; S4, described catalyst precursor in CH 4 / H 2 Reduction treatment is carried out under the atmosphere to reduce the transition metal oxide to for...
Embodiment 1
[0064] This example is used to illustrate the regular structure desulfurization catalyst and its preparation method of the present invention.
[0065] (1) Pretreatment of alumina source:
[0066] Mix 0.31kg of pseudo-boehmite (produced by Shandong Aluminum Plant, with a solid content of 65% by weight, containing 0.2kg of alumina, with an average particle size of 35nm, the same below) and 2kg of deionized water (pH=7, the same below) Mix and beat evenly, add 100mL of hydrochloric acid with a concentration of 18wt% dropwise, adjust the pH value of the slurry to 1.8 to make the slurry in a gel state, and age at 60°C for 1 hour to obtain pretreated pseudo-boehmite.
[0067] (2) Preparation of catalyst support:
[0068]Add 1.22kg of zinc oxide powder (produced by Beijing Chemical Factory, the average particle size is 75nm; containing 1.2kg on a dry basis, the same below) and 0.25kg of kaolin (Suzhou kaolin) in the aforementioned pretreated pseudo-boehmite obtained Factory product...
Embodiment 2
[0076] This example is used to illustrate the regular structure desulfurization catalyst and its preparation method of the present invention.
[0077] (1) pretreatment of alumina source: with embodiment 1;
[0078] (2) Preparation of catalyst support:
[0079] Add 3.46kg of zinc oxide powder (containing dry basis 3.4kg) and 0.5kg kaolin (containing dry basis 0.4kg) and fully mix and stir in the pretreated pseudo-boehmite (containing alumina 0.2kg) obtained above, Then use ball mill wet grinding 5h (ball mill liquid is distilled water) to prepare the slurry (mixture particle d) that solid content is 30% by weight 90 8 μm), and then coated on a 1.18kg cylindrical honeycomb-shaped cordierite carrier, then dried the coated carrier at 100°C for 150min, then fired at 500°C for 240min, and repeated the above coating, drying and roasting The step of obtaining the catalyst carrier of 1.33kg.
[0080] (3) Preparation of catalyst precursor:
PUM
Property | Measurement | Unit |
---|---|---|
area | aaaaa | aaaaa |
particle size | aaaaa | aaaaa |
particle diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com