Combined technology of catalytic cracking absorbing stabilizing system and C3 intercooling oil absorption

An absorption stabilization system and catalytic cracking technology, which is applied in the technical field of refining and ethylene combination, can solve the problems of high equipment investment, large floor space, etc. Effect

Active Publication Date: 2012-03-21
CHINA PETROLEUM & CHEM CORP +1
View PDF8 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A typical pressure swing adsorption device requires 10-16 adsorption towers, and each adsorption tower is repeatedly operated through the steps of adsorption, replacement, reverse discharge, evacuation, and pressure boost. This method has problems such as high equipment investment and large floor space.

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
  • Combined technology of catalytic cracking absorbing stabilizing system and C3 intercooling oil absorption
  • Combined technology of catalytic cracking absorbing stabilizing system and C3 intercooling oil absorption
  • Combined technology of catalytic cracking absorbing stabilizing system and C3 intercooling oil absorption

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] See Table 1 for the molar composition of FCC compressed rich gas in a refinery. See Table 2 for the Ernst distillation data of naphtha and light oil used for absorption stabilization.

[0041] The compressed rich gas 101 from the rich gas compressor is mixed with the rich absorption liquid 104 at the bottom of the absorption tower, cooled to 40°C by the cooler 1, and enters the gas-liquid separation tank 2 for equilibrium separation. The operating temperature of the gas-liquid separation tank is 40°C. The operating pressure is 1.45 MPa, and the gas phase 103 from the gas-liquid separation tank enters the bottom of the absorption tower 3 . The theoretical plate number of the absorption tower is preferably 12, the operating pressure is 1.37MPa, the temperature at the top of the tower is 43.2°C, and the temperature at the bottom of the tower is 45.2°C. In the absorption tower, naphtha 102 and supplementary absorbent 106 are used as absorbents to enter the top of the absorp...

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 combined technology of a catalytic cracking absorbing stabilizing system and C3 intercooling oil absorption, belonging to the technical field of integration of oil refining and ethylene, and providing a method for recovering dry gas by the combination of the absorbing stabilizing system and the C3 intercooling oil absorption. The method eliminates a desorption column of the absorbing stabilizing system, and avoids the constant circulation of a great amount of ethylene, ethane and liquefied gas in desorption gas between absorption and desorption, thus reducing the load of an absorption column and saving the energy consumption of the desorption column; as coarse C3 in a dethanizing column kettle of an ethylene unit is used as an absorbent, raw material is easy to obtain, and the cost is low; the desorption column of an original C3 oil absorption column for absorbing intercooling oil is eliminated, the constant circulation of a great amount of C2 and C3 in the desorption gas between absorption and desorption is avoided, and an expansion engine and an ice chest are adopted for recovering refrigeration capacity, thus saving consumption of the refrigeration capacity and heat capacity; and the regeneration of a C3 absorbing agent, the demethanation and the separation of the ethylene are all conducted in the ethylene unit, thus fully showing the reciprocity of the oil refining and ethylene, and being reasonable in flow.

Description

technical field [0001] The invention relates to a combination process of a catalytic cracking absorption stabilization system and C3 intercooler oil absorption, and furthermore, relates to a combination process technology of an absorption stabilization system and C3 intercooler oil absorption refining ethylene. Background technique [0002] The combination of refining process and ethylene process is an important measure to achieve the maximum output of transportation fuel and ethylene raw material with the minimum input of crude oil, so as to save resources and improve economic benefits. The integration of refinery process and ethylene process design is an inevitable choice. [0003] The mutual supply and reciprocity of the by-products of the refining process and the ethylene process is very strong. Ethylene raw materials include straight-run naphtha and reformed top oil from refineries, hydrocracked light naphtha and tail oil, hydrocokered gasoline, reformed raffinate and ...

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 Applications(China)
IPC IPC(8): C10G70/04C10G70/06C10G11/00C01B3/50C07C11/04C07C7/11
CPCY02P20/10Y02P30/40
Inventor 李晓峰李东风程建民廖丽华刘智信
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