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

Device for preparing olefins by using oxygen-containing compounds

A compound and olefin technology, applied in the direction of producing hydrocarbons from oxygen-containing organic compounds, hydrocarbon cracking, organic chemistry, etc., can solve the problems of low yield of low-carbon olefins, high investment, complicated process, etc., and achieve the goal of increasing the yield Effect

Active Publication Date: 2014-01-29
CHINA PETROCHEMICAL CORP +1
View PDF10 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to provide a device for producing olefins from oxygen-containing compounds, which overcomes the defects of low yield of low-carbon olefins, complicated process and high investment 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
  • Device for preparing olefins by using oxygen-containing compounds
  • Device for preparing olefins by using oxygen-containing compounds

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] Such as figure 1 Shown is a device for producing olefins from oxygenates according to the present invention, which includes an auxiliary reactor 11, a main reactor 5 and a regenerator 21, and a first standby device is arranged between the auxiliary reactor 11 and the main reactor 5. The raw catalyst delivery pipe 14 connects the auxiliary reactor 11 and the main reactor 5 through the first spent catalyst delivery pipe 14 . The oxygen-containing compound 3 enters the lower part of the main reactor 5 in the gas phase, contacts with the high-temperature regenerated catalyst from the regenerator 21, and a strong exothermic reaction occurs, and the reaction product is separated from the catalyst by the cyclone separator 6 of the main reactor, and the separated catalyst The reaction gas 7 rich in low-carbon olefins such as ethylene and propylene is drawn from the top of the main reactor 5 and sent to the rear quenching water washing system. The temperature of the reaction gas...

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 device for preparing olefins by using oxygen-containing compounds, which overcomes the deficiency that the low carbon olefin yield in the prior art is low. The device consists of a main reactor (5), an assistant reactor (11) and a regenerator (21), wherein the main reactor (5) is communicated with the regenerator (21) through a second to-be-regenerated catalyst conveying pipe (23) and a second regenerated catalyst conveying pipe (28), and the assistant reactor (11) is communicated with the regenerator (21) through a first to-be-regenerated catalyst conveying pipe (16) and a first regenerated catalyst conveying pipe (18).

Description

Technical field: [0001] The invention relates to the technical field of preparing hydrocarbons from one or several non-hydrocarbon compounds, in particular to a device for preparing olefins from oxygen-containing compounds Background technique: [0002] Light olefins mainly composed of ethylene, propylene and butadiene and light aromatic hydrocarbons mainly composed of benzene, toluene and xylene are the basic raw materials of petrochemical industry. At present, ethylene production mainly relies on the tube furnace steam cracking process of light naphtha raw material. Due to the shortage of crude oil resources and the increasing price, naphtha resources have become more and more insufficient, and the production cost of low-carbon olefins is getting higher and higher. At home and abroad, we are actively developing ethylene production routes with richer raw material sources. The organic oxygen-containing compound raw materials are catalyzed by metal-modified SAPO type small-p...

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): C07C11/04C07C11/06C07C1/20C07C4/06
CPCY02P20/584Y02P30/20Y02P30/40
Inventor 刘昱陈俊武乔立功施磊张洁昌国平李海瑞
Owner CHINA PETROCHEMICAL CORP