Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A method for cleaning full fraction FCC gasoline

A technology for catalytically cracked gasoline and full distillate, which is applied in the field of cleaning of full distillate catalytic cracked gasoline, can solve the problems of inability to reduce olefin content, loss of octane number, etc., so as to reduce energy consumption, improve carbon deposition resistance and shorten process The effect of the process

Active Publication Date: 2019-11-05
FUZHOU UNIV
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The above analysis shows that the adsorption desulfurization technology can reduce the sulfur content in gasoline to less than 10 μg / g, thus meeting the sulfur content requirements of the National VI gasoline standard. However, if the olefins are easily saturated to generate corresponding alkanes , resulting in a large loss of octane number; if the octane number can be maintained under the condition of non-hydrogenation, the olefin content cannot be reduced, and it still cannot meet the National VI gasoline standard

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
  • A method for cleaning full fraction FCC gasoline
  • A method for cleaning full fraction FCC gasoline
  • A method for cleaning full fraction FCC gasoline

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The raw material is FCC gasoline, and its composition is shown in Table 1.

[0041] The FCC gasoline composition in the embodiment 1 of table 1

[0042]

[0043] FCC gasoline is firstly processed through a pre-hydrogenation reactor to remove diolefins, the reaction temperature is 100°C, the reaction pressure is 1.5MPa, and the liquid volume space velocity is 6h -1 , the volume ratio of hydrogen to oil is 4:1. The catalyst composition is MoO 3 6%, NiO 13% and γ-Al 2 o 3 81%.

[0044] The obtained product undergoes deep desulfurization through the adsorption desulfurization unit, the operating temperature is 400°C, the operating pressure is 2MPa, and the weight hourly space velocity is 4h -1 , the adsorbent is a composite oxide catalyst (by mass, containing 80% zinc oxide, 15% nickel oxide and 5% aluminum oxide).

[0045] Finally, the desulfurized product is subjected to olefin isomerization, the reaction temperature is 300°C, the reaction pressure is 2.0MPa, a...

Embodiment 2

[0052] Raw material is identical with the raw material in embodiment 1.

[0053] FCC gasoline is firstly processed through a pre-hydrogenation reactor, the reaction temperature is 120°C, the reaction pressure is 2MPa, and the liquid volume space velocity is 4h -1 , the volume ratio of hydrogen to oil is 5:1, and the catalyst composition is MoO 3 8%, NiO 15%, K 2 O 1%, La 2 o 3 1% and γ-Al 2 o 3 75%.

[0054] The obtained product undergoes deep desulfurization through the adsorption desulfurization unit, the operating temperature is 450°C, the operating pressure is 3MPa, and the weight hourly space velocity is 6h -1 The adsorbent is an activated carbon-based adsorbent (by weight, containing 88% of activated carbon and 12% of zinc oxide).

[0055] Finally, the desulfurized product is subjected to olefin isomerization, the reaction temperature is 350°C, the reaction pressure is 3.0MPa, and the weight hourly space velocity is 6h -1 , The volume ratio of hydrogen to oil i...

Embodiment 3

[0062] Raw material is identical with the raw material in embodiment 1.

[0063] FCC gasoline is first processed through a pre-hydrogenation reactor, the reaction temperature is 150°C, the reaction pressure is 2.5MPa, and the liquid volume space velocity is 4h -1 , the volume ratio of hydrogen to oil is 6:1, and the catalyst composition is MoO 3 9%, NiO13%, K 2 O 4%, La 2 o 3 1% and γ-Al 2 o 3 73%.

[0064] The above products undergo deep desulfurization through the adsorption desulfurization unit, the operating temperature is 380°C, the operating pressure is 3.5MPa, and the weight hourly space velocity is 3h -1 The adsorbent is a molecular sieve-based adsorbent (by weight, containing 75% of Y-type molecular sieve and 25% of mordenite).

[0065] Finally, the desulfurized product is subjected to olefin isomerization, the reaction temperature is 200°C, the reaction pressure is 4.5MPa, and the weight hourly space velocity is 2h -1 , the volume ratio of hydrogen to oil i...

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
pore sizeaaaaaaaaaa
specific surface areaaaaaaaaaaa
pore sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a cleaning method of full-range FCC (Fluid Catalytic Cracking) gasoline. The cleaning method comprises the following process: firstly, removing alkadiene in the full-range FCC(Fluid Catalytic Cracking) gasoline through a prehydrogenation reactor; then, carrying out hydro-adsorption desulfurization on a prehydrogenation product, thus removing sulfide; then carrying out isomerization on reaction effluent under the action of an olefin isomerization catalyst by using a weakly acidic mesoporous H-shaped Zn-ZSM-5 molecular sieve or an improved weakly acidic mesoporous H-shaped Zn-ZSM-5 molecular sieve as a carrier, thus converting olefin into isohydrocarbons, wherein an isomerization reaction product is clean gasoline meeting national standard VI.

Description

technical field [0001] The invention relates to the field of catalytic cracking gasoline, in particular to a method for cleaning whole fraction catalytic cracking gasoline. Background technique [0002] The cleaning of FCC gasoline is mainly completed by FCC gasoline post-treatment technology, mainly including hydrodesulfurization technology, hydrogen adsorption desulfurization technology, oxidation desulfurization technology, extraction desulfurization technology and biodegradation desulfurization technology, etc., hydrodesulfurization and hydrogen adsorption desulfurization technology Due to the maturity of the technology, it will still be the mainstream technology of FCC gasoline cleaning at present or for a period of time in the future. [0003] Hydrodesulfurization is a process to clean FCC gasoline under the condition of hydrogen. The current mainstream hydrodesulfurization technology adopts pre-hydrogenation of whole-fraction FCC gasoline-cutting of light and heavy fr...

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 Patents(China)
IPC IPC(8): C10G69/04B01J29/46B01J29/48
CPCB01J29/405B01J29/46B01J29/48B01J2229/18C10G69/04C10G2300/202C10G2400/02
Inventor 岳源源鲍晓军王廷海王学丽刘杰袁珮白正帅朱海波
Owner FUZHOU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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