Unlock instant, AI-driven research and patent intelligence for your innovation.

Petroleum catalytic cracking processing method

A catalytic cracking and petroleum technology, which is applied in the field of petroleum refining, can solve the problems of low yield of target products and unsatisfactory product distribution, and achieve the effect of increasing yield, improving distribution of cracked products, and reducing investment in transformation

Inactive Publication Date: 2014-10-15
PETROCHINA CO LTD
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for petroleum catalytic cracking processing to improve the problems of unsatisfactory product distribution and low yield of target products in the prior art

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
  • Petroleum catalytic cracking processing method
  • Petroleum catalytic cracking processing method
  • Petroleum catalytic cracking processing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] As shown in the figure, the process flow of the method for processing petroleum fractions provided by the present invention is described as follows:

[0029] (1) The raw oil from the raw oil storage tank 1 is heated by the heating furnace 2, then mixed with the atomized water 3, and enters the catalytic cracking reactor 6 to undergo a catalytic cracking reaction, and the generated oil and gas product 7 is in contact with the carbon deposit. The active catalyst spent agent 8 is separated at the top of the reactor 6, the oil and gas product 7 is sent to the distillation tower 17 through the pipeline, and the catalyst spent agent 8 deactivated by carbon deposits is sent to the stripping tower 10.

[0030] (2) The stripping medium 9 is sent into the stripping tower 10 through the pipeline, and the catalyst standby agent 8 is stripped to remove the oil and gas products adsorbed by the catalyst, and the oil and gas products are mixed with the oil and gas products 7 coming out ...

Embodiment 2

[0034]Using oil A (see Table 1 for its properties) as feedstock oil, in a small riser reactor with catalyst inlets on the side wall and bottom, it contacts with the catalytic cracking catalyst of commercial brand DVR-3 to undergo catalytic cracking reaction. The bottom inlet enters the reactor, the side wall inlet is at the lower 1 / 5 of the reactor, and the catalyst flow ratio between the bottom inlet and the side wall inlet is 5:5. The catalytic cracking process conditions are: the reactor outlet temperature is 502°C, the catalyst-to-oil ratio is 4.5, and the regeneration temperature is 666°C. The distribution of catalytic cracking products is shown in Table 2.

Embodiment 3

[0039] Using oil B (see Table 1 for its properties) as feedstock oil, in a small riser reactor with catalyst inlets on the side wall and bottom, contact with the catalytic cracking catalyst of commercial brand RMG-2 for catalytic cracking reaction, feedstock oil from The bottom inlet enters the reactor, the side wall inlet is at the lower 1 / 4 position of the reactor, and the catalyst flow ratio between the bottom inlet and the side wall inlet is 6:4. The catalytic cracking process conditions are: the reactor outlet temperature is 498 ° C, the catalyst oil ratio is 4.5, the regeneration temperature is 683 ° C, and the distribution of catalytic cracking products is shown in Table 2.

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 relates to a petroleum catalytic cracking processing method. The petroleum catalytic cracking processing method comprises the following steps that a petroleum fraction contacts with a catalyst in a catalytic cracking reactor and undergoes a reaction under the catalytic cracking reaction conditions to produce product oil gas, the product oil gas is separated from the catalyst to be regenerated, the product oil gas is fractionated in a fractionation tower so that gas, a gasoline fraction, a diesel oil fraction and a wax oil fraction are obtained, the catalyst to be regenerated is subjected to steam stripping and then is fed into a regenerator, carbon deposit on the catalyst to be regenerated is sintered and removed under the regeneration reaction conditions so that the regenerated catalyst is obtained, the regenerated catalyst is divided into two parts, the first part is fed to the bottom of the catalytic cracking reactor and enters into the reactor before the oil material enters into the reactor, and the second part is fed to any part of the middle of the reactor, wherein a weight ratio of the first part to the second part is in a range of 9: 1 to 5: 5. The petroleum catalytic cracking processing method improves a petroleum conversion rate and ideal product selectivity.

Description

technical field [0001] The invention relates to a catalytic cracking process of petroleum distillate under the condition of no hydrogen. The invention belongs to the field of petroleum refining. Background technique [0002] Catalytic cracking is a very important heavy oil lightening process in the oil refining industry, that is, the process of converting high-boiling hydrocarbons into more valuable low-boiling hydrocarbons such as gasoline under the action of catalysts and higher temperatures. Catalytic cracking includes processes such as cracking reaction, separation, stripping and regeneration. Conventional catalytic cracking raw oil is distillate oil with a boiling point between 325 and 600°C, usually straight-run wax oil and hydrocracked wax oil. As crude oil becomes heavier, the yield of light oil in the primary processing process of the oil refining industry decreases, and the raw material oil of the catalytic cracking unit is insufficient. deep processing. Moreov...

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): C10G55/06
Inventor 任文坡李振宇李雪静杨延翔黄格省王红秋朱庆云乔明李顶杰曲静波郑轶丹王春娇任静朱雅兰卢红
Owner PETROCHINA CO LTD
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