Supercharge Your Innovation With Domain-Expert AI Agents!

A kind of hydrorefining method of inferior gasoline

A low-quality gasoline and hydrotreating technology, applied in hydrotreating process, petroleum industry, treatment of hydrocarbon oil, etc., can solve the problem that the device cannot operate for a long time, avoid fouling and coking, improve fouling and coking, The effect of considerable economic benefits

Active Publication Date: 2016-02-10
CHINA PETROLEUM & CHEM CORP +1
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Aiming at the deficiencies of the prior art, the present invention provides a method for hydrofining low-quality gasoline, especially for the hydrotreating devices of low-quality gasoline in oil refineries, to solve the problem that the device cannot operate for a long period due to fouling and coking

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 kind of hydrorefining method of inferior gasoline

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] use figure 1 The process flow shown. The properties of the catalyst used are listed in Table 3, and the process conditions and test results are listed in Table 4 and Table 11, respectively.

[0045] Table 3 The main composition and properties of the catalyst.

[0046]

pretreatment catalyst hydrogenation catalyst Catalyst composition

MoO 3 +CoO / wt% 5% 20% carrier Aluminum oxide Aluminum oxide The main properties of the catalyst

Particle size, mm 0.2 — Specific surface / m 2 g -1 180 226 Pore ​​volume / mL·g -1 0.68 0.51

[0047] Table 4 Example 1 process conditions.

[0048] Process conditions data volumetric space velocity, h -1 4 Heat load oil / raw material weight ratio 0.55 Hydrogen / coked gasoline volume ratio 300 Average reaction temperature of pretreatment reactor / °C 230 Average reaction temperature of hydrotreating reactor / °C 290 Reac...

Embodiment 2

[0050] use figure 1 The process flow shown. The catalyst properties used are listed in Table 5, and the process conditions and test results are listed in Table 6 and Table 11 respectively.

[0051] Table 5 The main composition and properties of the catalyst.

[0052]

pretreatment catalyst hydrogenation catalyst Catalyst composition

MoO 3 +CoO / wt% 0 25% carrier Aluminum oxide Aluminum oxide The main properties of the catalyst

Particle size, mm 0.3 — Specific surface / m 2 g -1 180 226 Pore ​​volume / mL·g -1 0.68 0.51

[0053] Table 6 Example 2 process conditions.

[0054] Process conditions data volumetric space velocity, h -1 4 Heat load oil / raw material weight ratio 0.60 Hydrogen / coked gasoline volume ratio 300 Average reaction temperature of pretreatment reactor / °C 230 Average reaction temperature of hydrotreating reactor, / °C 290 Reaction pr...

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
lengthaaaaaaaaaa
diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a hydrorefining method of inferior gasoline. The method comprises the following steps: (1) mixing inferior gasoline raw materials with thermal loaded oil and hydrogen, reacting in a fluidized bed pretreatment reactor; allowing the effluent of the hydrogenation pretreatment to pass through a gasoline hydrogenation reactor in an upward flowing manner without gas-liquid separation, performing a hydrodesulfurization reaction; allowing the effluent of the hydrogenation reaction to enter a high temperature high pressure separator to obtain gas and thermal loaded oil, returning the liquid as thermal loaded oil to step (1) for recycle; allowing the obtained gas to enter a low temperature high pressure separator, treating the obtained hydrogen-rich gas for recycle, and performing gas stripping of the liquid so as to be used as a gasoline blending component or a chemical raw material. The method of the invention greatly prolongs the running period of the gasoline hydrogenation device, and has very good economic benefits.

Description

technical field [0001] The invention relates to a method for hydrogenation refining of low-quality gasoline, in particular to a method for meeting the long-period production of low-quality gasoline hydrotreating devices in oil refineries. technical background [0002] In the past ten years, due to the slow growth of crude oil production and the increasingly heavy quality, the market demand for light oil products has continued to increase. Coupled with the increasingly stringent environmental protection regulations, relatively higher requirements are put forward for the crude oil secondary processing capacity of petroleum refining and chemical enterprises. The secondary processing devices of petroleum refining and chemical enterprises are mainly coking, catalytic cracking, hydrogenation and catalytic reforming devices. [0003] In petroleum processing, coking is the abbreviation of residual oil coking, which refers to the process of deep cracking and condensation reaction of...

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): C10G67/02
Inventor 陈光黄新露吴子明石友良曾榕辉
Owner CHINA PETROLEUM & CHEM CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com