Method for decreasing sulfur content of hydrocarbon

A technology of sulfur content and hydrocarbon oil, which is applied in the multi-stage series refining process, etc., can solve the problems of long time and achieve the effect of increasing octane number and less investment in construction

Active Publication Date: 2005-02-23
CHINA PETROLEUM & CHEM CORP +1
View PDF3 Cites 36 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method takes a long time a

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
  • Method for decreasing sulfur content of hydrocarbon
  • Method for decreasing sulfur content of hydrocarbon

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] The preparation method of the desulfurizer provided by the present invention is as follows: mix the precursor of inorganic oxide with clay in a predetermined amount and prepare it into a slurry with a solid content of 10-50% by weight with decationized water, and adjust its pH with inorganic acid And maintain it to 2-4, stand and age at 20-80°C for 0-2 hours, add a predetermined amount of zeolite, homogenize, spray molding, and wash to remove free Na + ,dry.

[0023] The precursor of the inorganic oxide is selected from: aluminum sol, pseudo-boehmite, silica sol and mixtures thereof, and silica-alumina sol or gel, preferably a mixture of aged pseudo-boehmite and aluminum sol. The weight ratio of the pseudo-boehmite to the aluminum sol binder (calculated as alumina) is 0.1-10, preferably 0.5-7.0.

[0024] The aged pseudo-boehmite slurry can be prepared according to conventional methods. For example, the pseudo-boehmite and water can be beaten, and after stirring uniformly, t...

Example Embodiment

[0039] Example 1

[0040] This example illustrates: using the method provided by the present invention, high-sulfur gasoline is in contact with desulfurizers PDS2 and APDS2 in a small fluidized bed reactor for reaction and adsorption.

[0041] The high-sulfur gasoline B listed in Table 1 is used as a raw material, and it is contacted with a desulfurizer PDS2 or APDS2 in a small fluidized bed reactor with continuous reaction regeneration operation for reaction and adsorption. The test conditions are that the reaction temperature is 350℃, the pressure at the top of the reactor is 0.2 MPa, and the weight hourly space velocity is 4 hours. -1 , The agent-oil ratio is 10, and the water-oil ratio is 0.03. The reaction product, steam and the spent desulfurizer are separated in the settler, and the reaction products are separated to obtain gas products and liquid products, and the spent desulfurizer enters the stripper, and the steam is stripped out of the hydrocar...

Example Embodiment

[0045] Example 2

[0046] This example illustrates: using the method provided by the present invention, high-sulfur gasoline is in contact with a desulfurizer in a small fluidized bed reactor for reaction and adsorption.

[0047] The two types of high-sulfur gasoline A and B listed in Table 1 are used as raw materials, and they are contacted with the desulfurizer APDS2 for reaction and adsorption in a small fluidized bed reactor with continuous reaction regeneration operation. The test conditions are that the reaction temperature is 350℃, the pressure at the top of the reactor is 0.2 MPa, and the weight hourly space velocity is 4 hours. -1 , The agent-oil ratio is 10, and the water-oil ratio is 0.03. The specific test procedure is the same as in Example 1. The test conditions, test results and gasoline properties are listed in Table 3. The comparison between the sulfur distribution of gasoline B and the sulfur distribution after desulfurization is shown in...

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

No PUM Login to view more

Abstract

A method to reduce sulfur in hydrocarbon oil is that put the petroleum hydrocarbon and desulfuration agent into the fluid bed reactor and react with the fluid medium under following conditions: reaction temperature is 150-150 deg.C, heavy hourly space velocity is 0.1-60 per hour, the weight proportion of the desulfuration aget and cut fraction of gasoline is 3-40, and the reactive pressure is 130-1450 Kpa. The separate the production and desulfuration agent and transfer the production into downstream separation system. Moreover, transfer the desulfuration agent with carbon into regeneration equipment to regenerate after stripping and the regeneration temperature should be lower than 700 deg.C. Additionally, the desulfuration agent can be reused after being cooled down.

Description

technical field [0001] This invention pertains to the refining of hydrocarbon oils in the absence of hydrogen, and more particularly to a method for reducing the sulfur content of hydrocarbon oils. Background technique [0002] With the increase of the processing capacity of high-sulfur crude oil, the sulfur content in oil products also increases accordingly, and the environmental pollution is aggravated, which has aroused widespread concern in various countries. Developed countries limit the sulfur content of gasoline to less than 50ppm in developed countries. my country currently requires less than 800ppm in gasoline products. However, with increasingly stringent environmental protection, the requirements for gasoline sulfur content specification control are also getting higher and higher. The more effective way to reduce the sulfur content of gasoline is to use hydrofining and hydroreforming, through which catalytic reforming of gasoline can be achieved under hydrogen pre...

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): C10G53/08
Inventor 许友好刘宪龙张久顺龙军何鸣元
Owner CHINA PETROLEUM & CHEM 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