HDS (hydrodesulfurization) technology of FCC (fluid catalytic cracking) gasoline

A hydrodesulfurization and desulfurization process technology, which is applied in the petroleum industry, processing hydrocarbon oil, refining hydrocarbon oil, etc., can solve the problems of large hydrogen consumption, high operating costs, and large equipment investment.

Inactive Publication Date: 2017-02-22
过冬
View PDF2 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hydroprocessing method has the following disadvantages: (1) equipment investment is large; (2) the reaction conditions of hydrodesulfurization are harsh, and the operating cost is high; (3) olefins are prone to saturation under hydrodesulfurization conditions, which not only consumes a Hydrogen, and lower gasoline octane

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The catalyst was prepared by impregnation method, and the carrier was a mixture of MSU-G, SBA-15 and HMS, and the mixing ratio was 1:1.1:0.5. The active component molybdenum nitride MO 2 N, tungsten nitride W 2 N, molybdenum carbide Mo 2 The total content of C and tungsten carbide WC is 10% of the mass of the carrier, and their molar ratio is 1:0.4:0.3:0.8.

[0049] The catalyst is loaded into a fixed bed reactor, the reaction tube of the reactor is made of stainless steel with an inner diameter of 50 mm, the catalyst bed temperature is measured with a UGU808 temperature control meter, and the raw material light oil is manufactured by Beijing Satellite Manufacturing Plant The double-plunger micropump continuously transports the hydrogen gas from a high-pressure cylinder and controls the flow rate with a Beijing Qixing Huachuang D07-11A / ZM gas mass flow meter. The catalyst loading is 2kg. The reacted product is cooled in a water bath for gas-liquid separation.

[005...

Embodiment 2

[0054] The catalyst is prepared by the impregnation method, and the carrier is a mixture of MSU-G / SBA-15 complex, MSU-G / HMS and SBA-15 / HMS complex, wherein the ratio of MSU-G, SBA-15 and HMS is the same as in the example 1 is the same. The active component molybdenum nitride MO 2 N, tungsten nitride W 2 N, molybdenum carbide Mo 2 The total content of C and tungsten carbide WC is 10% of the mass of the carrier, and the molar ratio is 1:0.6:0.45):1.2.

[0055] All the other conditions are the same as in Example 1.

[0056] The final product was tested and still had a research octane rating of 94, while the total sulfur content was reduced to 3 ppm.

Embodiment 3

[0084] The catalyst contains catalytic promoter Cr 2 o 3 , ZrO 2 , CeO 2 , V 2 o 5 and NbOPO 4 , its content is respectively 1%, 1.5%, 2%, 1% and 3%, all the other are identical with embodiment 1.

[0085] The final product was tested, and after it was used for 3 months, the pressure drop of the catalyst bed did not change, which was 13.8% lower than the pressure drop of the catalyst bed in Example 1 for the same use time.

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

The invention discloses an HDS (hydrodesulfurization) technology of FCC (fluid catalytic cracking) gasoline. According to the technology, a fixed bed reactor is adopted and filled with an HDS catalyst which comprises a carrier and an active component; the carrier is a compound or a mixture of MSU-G, SBA-15 and HMS; the active component is a mixture of MO2N, W2N, Mo2C and WC; the catalyst further contains a catalytic promoter which is a mixture of Cr2O3, ZrO2, CeO2, V2O5 and NbOPO4; the reaction conditions of the fixed bed reactor are as follows: the reaction temperature is 300-420 DGE C, the hydrogen pressure is 2.5-3.5 MPa, the hydrogen oil volume ratio is 500-800, and the volume airspeed is 1.5-4 h<-1>. The total sulfur content in the FCC gasoline can be reduced to 5 ppm or below to meet national five gasoline standards with the technology. Meanwhile, the octane number of the FCC gasoline is not reduced obviously with the technology.

Description

technical field [0001] The invention relates to a gasoline hydrodesulfurization process, in particular to an FCC gasoline hydrodesulfurization process, more preferably a process for FCC gasoline hydrodesulfurization and reducing the octane number reduction range. Background technique [0002] In the 21st century, the demand and use of fuel oil have increased significantly, and the environmental pollution caused by sulfur compounds in it has attracted people's attention. Sulfur oxides (SO x ) into the air, producing acid rain and sulfuric acid smog pollution, etc., resulting in air pollution. [0003] Sulfur is a harmful substance that exists in gasoline in nature. More than 80% of the sulfur in finished gasoline comes from catalytic cracking (FCC) gasoline. As crude oil continues to become heavier, the sulfur content in FCC gasoline will continue to increase. Foreign gasoline generally comes from FCC (34%), catalytic reforming (33%), and alkylation, isomerization and ether...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/12B01J29/00
CPCC10G45/12B01J29/005B01J29/0341B01J29/045C10G2300/1037C10G2300/202C10G2300/70C10G2400/02
Inventor 过冬
Owner 过冬
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