Inferior coker gas oil hydrotreatment method

A coking wax oil and hydrotreating technology, which is applied in the fields of hydrotreating process, chemical instruments and methods, and hydrocarbon oil treatment, can solve the problems of processing and utilization limitations, pollute the environment, poor cracking performance, etc., and increase the distribution range Effect

Active Publication Date: 2013-07-03
PETROCHINA CO LTD
View PDF7 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Delayed coking is an important process for lightening heavy oil in secondary processing. As an important fraction (about 20% to 30%) of the coking unit, coking gas oil (CGO) can be used as a blending raw material for catalytic cracking, but coking wax The content of impurities such as sulfur and nitrogen in the oil is high, and the cracking performance is poor. Excessive blending will seriously affect the conversion rate of catalytic crack

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
  • Inferior coker gas oil hydrotreatment method
  • Inferior coker gas oil hydrotreatment method
  • Inferior coker gas oil hydrotreatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Preparation of protective agent

[0028] Mix macroporous pseudo-boehmite, silica sol, turmeric powder, citric acid and magnesium-containing aqueous solution evenly, extrude and dry, and roast at 600°C to 1200°C to obtain magnesium-aluminum spinel-macropore Alumina carrier, after the carrier has been modified by organosilicon, a metal solution containing a certain amount of active Mo-Ni is added to the carrier, aged for 12 hours, dried at 100°C to 120°C for 14 hours, and roasted at 500°C for 5 hours in air to obtain the protective agent.

[0029] (2) Preparation of hydrodemetallization agent

[0030] First, surface-treat the prepared magnesia-aluminum spinel-macroporous alumina carrier with organic silicon, dry it at 30°C-50°C, then treat it with ethanol solution of surfactant, and dry it at 30°C-50°C Finally, add a metal solution at room temperature or under heating conditions to prepare a solution, add a certain amount of active Mo-Ni metal solution on the carrier...

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 present invention relates to an inferior coker gas oil hydrotreatment method. The catalyst is prepared by successively loaded a protection agent, a demetallization agent, a desulfurization agent and a denitrification agent from top to bottom with a volume ratio of 0.1-10:0.5-20:0.5-20:5-60. The catalyst is in accordance with grain size distribution and activity distribution. A magnesium aluminate spinel-macropore alumina carrier is modified by organosilicone in surface, and loaded with Mo and Ni to obtain the protection agent. The alumina-macropore alumina-zeolite carrier is pretreated by organosilicone and at least one selected from the group consisting of ethanol, propanol, and butanol, loaded with Mo and Ni to obtain the demetallization agent, loaded with W-Mo-Ni to obtain the denitrification agent, and loaded with Co-Mo -Ni to obtain the desulfurization agent. The method helps to improve the dispersion state of active metal components and the interaction thereof with the carrier, and improve the utilization efficiency of the active components thereby enhancing the activity of the catalyst. The raw material after hydrotreatment can be directly used as FCC or hydrocracking raw materials.

Description

technical field [0001] The invention relates to a method for hydrotreating inferior coker wax oil. Background technique [0002] In recent years, the trend of heavy crude oil in the world has been significantly accelerated. While the quality of crude oil has become heavier and worse, the demand for engine fuel and chemical light oil has been increasing year by year, and the quality requirements have become increasingly stringent. In addition, environmental protection laws and regulations are constantly being strengthened. The development of deep processing of heavy and low-quality crude oil, increasing the production of light petroleum products, and improving the quality of petroleum products have become the oil refining industry in the world, especially in my country. Catalytic cracking (FCC) Occupying a very important position, the raw material of the catalytic cracking unit is mainly vacuum gas oil (VGO). In recent years, the trend of blending inferior raw materials such a...

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): C10G65/04B01J29/00B01J23/883B01J35/10
Inventor 方磊冯秀芳郭金涛张志华田然王伟众于春梅孙发民王刚徐伟池王丹温广明田春光刘庆华金艳春李瑞峰王甫村于宏伟何玉莲关旭刘丽莹
Owner PETROCHINA CO LTD
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