Reaction adsorption desulfurization-aromatization reaction process and catalyst thereof

A technology of adsorption desulfurization and catalyst, which is applied in the field of deep desulfurization and aromatization modification of catalytic cracked gasoline, which can solve the problems of low desulfurization activity, short reaction cycle, frequent regeneration of adsorption desulfurizer, etc.

Inactive Publication Date: 2014-03-26
BC P INC CHINA NAT PETROLEUM CORP +1
View PDF8 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The advantage of reactive adsorption desulfurization is that it can achieve ultra-deep desulfurization, and the sulfur content of the product can be reduced to below 10ppm. The problem is that the reaction must be carried out under hydrogenation conditions, and it is difficult to avoid the loss of octane number caused by olefin hydrogenation saturation. In addition, the adsorption The desulfurizer needs to be regenerated frequently; the advantage of the aromatization process is that the conversion of olefins to aromatics can increase the octane number of the product gasoline, but the problem is that the catalyst is deactivated by carbon deposition, the reaction cycle is short, and the desulfurization activity is not high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Reaction adsorption desulfurization-aromatization reaction process and catalyst thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: Weigh 200 grams of dried diatomaceous earth in a beaker, at first it is supplemented with aluminum, and the specific process is to mix 51.64 grams of NaAlO 2 , 4.348 grams of template agent, 21.74 grams of sodium hydroxide were dissolved in 1000 milliliters of distilled water to prepare a solution. Stir and mix the diatomite with the solution evenly, dry at 80° C. to obtain modified diatomite; then place the obtained modified diatomite in a crystallization tank, and crystallize at 170° C. for 24 hours. The product after exiting the kettle was centrifuged and washed several times until the supernatant was neutral, filtered and dried to obtain the raw molecular sieve powder, which was exchanged with ammonium sulfate according to the conventional method to obtain the hydrogen-form ZSM-5. The analysis results show that the pore structure of the synthetic molecular sieve presents an obvious step pore distribution, and the BET surface area of ​​the synthetic mol...

example 2

[0014] Example 2: Accurately weigh oxalic acid (H 2 C 2 o 4 , analytically pure) and zinc acetate (Zn(Ac) 2 2H 2 O, analytically pure), placed in a mortar, fully ground for 30-60min, and the solid-phase product was vacuum-dried in an oven at 70°C for 4h to obtain the precursor ZnC 2 o 4 2H 2 O. The dried ZnC 2 o 4 2H 2 O is placed in a muffle furnace and heated to a decomposition temperature of 450-500°C, and kept for 2 hours to obtain the product nano-ZnO. After analysis, the BET surface area is 35-46m 2 g -1 , the pore volume is 0.15-0.20cm 3 -g -1 , the grain size is 20-40nm.

example 3

[0015]Example 3: Accurately take 7 grams of nickel nitrate and 8 grams of lead nitrate and dissolve in 30 milliliters of aqueous solution to prepare an impregnating liquid, adopt the impregnation method to impregnate the prepared impregnating liquid on the nano-zinc oxide synthesized by 50 grams of example 2 methods, and then Then add the ZSM-5 molecular sieve in 30 grams of example 1, 10 grams of alumina dry glue and a small amount of 1% nitric acid, after mixing uniformly, extrusion molding, drying and roasting, catalyst 1 (Ni-Pb / ZnO-ZSM-5 ).

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Surface areaaaaaaaaaaa
Login to view more

Abstract

The invention relates to a reaction adsorption desulfurization-aromatization reaction process and a catalyst thereof. The catalyst has a reaction adsorption desulfurization function while a catalytic gasoline raw material is hydrotreated, is capable of coupling a reaction adsorption desulfurization reaction and an aromatization reaction so that the octane number of a product is not obviously reduced while deep desulfurization is achieved when the researched process and the catalyst are used for modifying the catalytic gasoline raw material. The purposes that the S content of the gasoline of the product is less than 10ppm, the olefin content is reduced by 10 percent, the RON (Research Octane Number) loss is less than 1 and the gasoline yield is more than 95 percent are achieved by using FCC (Fluid Catalytic Cracking) gasoline with S content of 300-800ppm as a raw material.

Description

technical field [0001] The invention relates to a method for deep desulfurization and aromatization modification of catalytic cracking gasoline. Specifically, it is a method for converting a sulfur-containing catalytic cracking gasoline into a clean fuel with ultra-low sulfur content, which belongs to the field of deep processing of petroleum products. Catalyst hydrotreating catalytic cracking gasoline raw material not only has the function of reaction adsorption desulfurization, but also can couple reaction adsorption desulfurization reaction and aromatization reaction, so that the developed process and its catalyst can achieve deep desulfurization when the raw material catalytic cracking gasoline is modified At the same time, the octane number of the product does not decrease significantly. Background technique [0002] The increasingly stringent environmental protection regulations put forward more and more strict requirements on the quality of gasoline for vehicles, esp...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B01J29/46C10G45/12C10G45/68C10G45/64
Inventor 柳云骐张珂刘晨光于建宁柴永明
Owner BC P INC CHINA NAT PETROLEUM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap