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Device for producing ethylene and propylene from oxygen-containing compounds

A compound and ethylene technology, applied in the direction of hydrocarbon production from oxygen-containing organic compounds, bulk chemical production, ethylene production, etc., can solve the problems of low selectivity, low yield of ethylene propylene, etc., to reduce side reactions and reduce by-products The amount, the effect of good technical effect

Active Publication Date: 2009-12-09
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is the problem of low yield and low selectivity of the target product ethylene propylene in the prior literature and technology, and a new device for producing ethylene and propylene from oxygen-containing compounds is provided

Method used

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  • Device for producing ethylene and propylene from oxygen-containing compounds

Examples

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Effect test

Embodiment 1

[0021] The test is attached figure 1 The shown device uses SAPO-34 as a catalyst, methanol as a raw material, ethanol as a terminator, and carbon tetraolefins as a passivator, wherein the fluidized bed reactor II catalyst feed port is vertical to the bottom of the fluidized bed reactor II The height is 1 / 20 of the height of the fluidized bed reactor II, and the vertical distance between the catalyst outlet of the fluidized bed reactor II and the top of the fluidized bed reactor II is 1 / 20 of the height of the fluidized bed reactor II. The vertical height of the catalyst inlet of the regenerator 2 from the bottom of the regenerator 2 is 1 / 12 of the vertical length of the regenerator 2, and the vertical height of the catalyst outlet from the catalyst inlet of the regenerator 2 is 1 / 10 of the vertical length of the regenerator 2. The vertical height of the catalyst inlet of the fluidized bed reactor 1 from the bottom of the fluidized bed reactor 1 is 1 / 20 of the vertical height o...

Embodiment 2

[0023] The test is attached figure 1 The shown device uses SAPO-34 as a catalyst, dimethyl ether as a raw material, no terminator, and carbon tetraolefin as a passivating agent, wherein the catalyst inlet of fluidized bed reactor II is connected to the bottom of fluidized bed reactor II The vertical height is 1 / 20 of the height of the fluidized bed reactor II, and the vertical distance between the catalyst outlet of the fluidized bed reactor II and the top of the fluidized bed reactor II is 1 / 20 of the height of the fluidized bed reactor II. The vertical height of the catalyst inlet of the regenerator 2 from the bottom of the regenerator 2 is 1 / 12 of the vertical length of the regenerator 2, and the vertical height of the catalyst outlet from the catalyst inlet of the regenerator 2 is 1 / 10 of the vertical length of the regenerator 2. The vertical height of the catalyst inlet of the fluidized bed reactor 1 from the bottom of the fluidized bed reactor 1 is 1 / 20 of the vertical h...

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Abstract

The present invention relates to ethylene and propylene producing apparatus with oxygen compound material and in high selectivity and high yield. The ethylene and propylene producing apparatus includes one regenerator with a regenerated gas inlet in the lower part, and a regenerated fume outlet in the upper part; one first fluidized bed reactor with a catalyst outlet connected to the catalyst inlet of the regenerator, a material inlet in the bottom, and a resultant outlet in the upper part; and one second fluidized bed reactor with a catalyst inlet connected through a regenerating sloped pipe to the regenerator, a catalyst outlet connected through an other regenerating sloped pipe to the first fluidized bed reactor and a deactivator inlet for the catalyst to produce carbon sediment. The production apparatus is applied in industrial production.

Description

technical field [0001] The invention relates to a device for producing ethylene and propylene from oxygen-containing compounds, in particular to a device that adopts a catalyst pretreatment passivation system to assist catalyst passivation treatment to realize catalytic conversion of oxygen-containing compounds to produce ethylene and propylene. Background technique [0002] Petrochemical industry is an important pillar industry in the national economy. It provides a large amount of chemical raw materials for industry, agriculture, transportation and national defense. It is one of the most relevant and leading industrial sectors in the national economy. Propylene and ethylene are the two most important basic raw materials for modern petrochemical industry. [0003] The bulk downstream products of ethylene mainly include polyethylene, ethylene oxide, ethylene glycol, polyvinyl chloride, styrene, vinyl acetate, etc. The size of ethylene production is a sign to measure the deg...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C1/20C07C11/04C07C11/06B01J8/26
CPCY02P20/52Y02P20/584Y02P30/20Y02P30/40
Inventor 刘俊涛钟思青朱志焱刘国强
Owner CHINA PETROLEUM & CHEM CORP
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