Processing method and system for inferior crude oil

A technology of inferior raw material oil and processing method, which is applied in the petroleum industry, hydrotreating process, processing hydrocarbon oil, etc., can solve the problems that the non-hydrotreating method is difficult to meet the requirements, the acid residue is difficult to deal with, and the energy consumption is high. It is suitable for continuous operation of large-scale production, saves the rich gas compressor, and reduces the energy consumption of the device

Active Publication Date: 2017-10-20
CHINA PETROLEUM & CHEM CORP +1
View PDF10 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Non-hydrogenation treatment mainly adopts acid-base refining, such as patent Chinese patent CN 101967389A, acid-base refining will not only produce a large amount of acid residue that is difficult to handle, pollute the environment, and the yield of refined oil is low; although some researchers have explored the use of single solvent in recent years Or multi-solvent extraction and refining method, such as patent Chinese patent CN CN1

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
  • Processing method and system for inferior crude oil
  • Processing method and system for inferior crude oil
  • Processing method and system for inferior crude oil

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0082] Example 1

[0083] This example follows figure 1 The shale oil A is used as the raw material for catalytic cracking, and the test is carried out on a small continuous regenerated fluidized bed riser reactor. The shale oil A is fed underneath, and the bottom of the reactor is expanded into the riser cracking zone The inner diameter of II is 5 times as fluidized bed hydrogen adsorption zone I, and the length of hydrogen adsorption zone I is 14% of the length of riser cracking zone II. Adsorption zone I introduces an externally heated cold regenerated catalytic cracking agent as the first catalytic cracking catalyst, and uses dry gas with a hydrogen volume fraction of 85% (the rest is methane, ethane, ethylene, etc.) as the hydrogen-containing gas to flow from bottom to top, The pipe cracking zone is fed with high temperature thermal regeneration catalytic cracking agent as the second catalytic cracking catalyst; CAT-3 catalyst is used as the first catalytic cracking catalyst...

Example Embodiment

[0089] Example 2

[0090] Example 2 follows figure 2 The equipment and process are tested. Residual oil B and vacuum wax oil C in Table 1 are used as raw materials for catalytic cracking. Residual oil B and vacuum wax oil C are fed separately, that is, the residual oil B is adsorbed in the fluidized bed by hydrogen Zone I feeds and vacuum wax oil C feeds into riser cracking zone II; the diameter of the fluidized bed at the bottom of the reactor is expanded into a turbulent fluidized bed hydrogen adsorption zone (the inner diameter of the fluidized bed hydrogen adsorption zone is as described The diameter of the riser cracking zone is 3 times, the length of the hydrogen adsorption zone of the fluidized bed is 10% of the length of the riser cracking zone), and the cooling first catalytic cracking catalyst with external heat is introduced, and the volume fraction is 80 % Dry gas (the rest are methane, ethane, ethylene, etc.) as hydrogen-containing gas; the lower part of riser crack...

Example Embodiment

[0096] Example 3

[0097] This example follows image 3 The test was carried out in the process of the process. Residue B was used as the raw material for catalytic cracking, and the test was carried out on a small continuous regeneration down fluidized bed riser reactor. Residue B was fed on, and the top of the reactor was expanded into a fluidized bed hydrogen adsorption zone The diameter of the fluidized bed hydrogen adsorption zone I is 4.2 times the diameter of the riser cracking zone II, and the length of the fluidized bed hydrogen adsorption zone I is 30% of the length of the riser cracking zone II. The hot coil cools the first catalytic cracking catalyst, and the riser section transports the high-temperature second catalytic cracking catalyst; the CAT-3 catalyst is used, and the balancer MAT=63. After preheating at 350°C, the residual oil enters the top of the reactor's expanded fluidized bed adsorption reaction zone I. With the hydrogen-containing gas flowing from top to...

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 a processing method and system for inferior crude oil. The method comprises the steps as follows: a, feeding hydrogen-containing gas and the inferior crude oil into a fluidized bed hydrogen absorption zone (I) of a fluidized bed riser reactor for contact with a first catalytic cracking catalyst and a hydrogen adsorption reaction to obtain a hydrogen absorption product; b, feeding the hydrogen absorption product obtained in the step a into a riser cracking zone (II) of the fluidized bed riser reactor for contact with a second catalytic cracking catalyst and a catalytic cracking reaction to obtain catalytic cracked oil-gas. The inferior crude oil processed by the system with the method has the advantages that the conversion rate of the inferior crude oil can be increased substantially, the yield of dry gas and coke is reduced, and accordingly, clean and efficient use of the inferior crude oil is realized.

Description

technical field [0001] The invention relates to a processing method and system for inferior raw material oil. Background technique [0002] With the shortage of petroleum resources and the increasing demand for high-quality gasoline, diesel and low-carbon olefins, the processing technology of inferior raw material oils such as coal liquefied oil, oil sand oil, and inferior and heavy petroleum products has attracted more and more attention. Inferior raw material oil, coal liquefied oil, oil sand oil, etc., are similar to natural petroleum, but contain more unsaturated hydrocarbons than natural petroleum, and contain non-hydrocarbon organic compounds such as nitrogen, sulfur and oxygen, which not only affect their secondary processing use, but also affect the color and stability of gasoline and diesel products, with high sulfur and nitrogen content. At present, except for a small amount of production of chemicals, inferior raw material oil is mostly sold as light fuel oil wit...

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): C10G67/06C10G67/14
CPCC10G67/06C10G67/14C10G2300/202C10G2300/205
Inventor 唐津莲龚剑洪李泽坤
Owner CHINA PETROLEUM & CHEM CORP
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