A reaction device for producing light olefins from methanol and/or dimethyl ether

A reaction device and a technology for low-carbon olefins, which are applied in the field of reaction devices, can solve the problem of low selectivity of low-carbon olefins, and achieve the effects of narrow residence time distribution, accurate carbon content, and improved selectivity.
CN104672045BActive Publication Date: 2016-06-08中科催化新技术(大连)股份有限公司
8 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
中科催化新技术(大连)股份有限公司
Publication Date
2016-06-08

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a reaction device for preparing low-carbon olefin by employing methyl alcohol and / or dimethyl ether, in particular to a reaction device for preparing low-carbon olefin by employing methyl alcohol and / or dimethyl ether. The reaction device mainly comprises a dense-phase fluidized bed reactor (2), a cyclone separator (3), a stripper (5), a lift pipe (7), a dense-phase fluidized bed regenerator (10), a cyclone separator (11), a stripper (13) and a lift pipe (15), wherein the dense-phase fluidized bed reactor (2) is partitioned into n (n is greater than or equal to 2) secondary reaction zones by material flow controllers (17); and the dense-phase fluidized bed regenerator (10) is partitioned into m (m is greater than or equal to 2) secondary regeneration zones by the material flow controllers (17). By virtue of the reaction device, the problems in the prior art that carbon deposit distribution of a catalyst is uneven and low-carbon olefin selectivity is relatively low are solved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a reaction device for producing light olefins from methanol and / or dimethyl ether. Background technique

[0002] Low-carbon olefins, namely ethylene and propylene, are two important basic chemical raw materials, and their demand is increasing. Generally, ethylene and propylene are produced through petroleum routes, but due to the limited supply and high price of petroleum resources, the cost of producing ethylene and propylene from petroleum resources continues to increase. In recent years, people have begun to vigorously develop the technology of converting alternative raw materials into ethylene and propylene. The process of methanol conversion to olefins (MTO) has received more and more attention, and has achieved a production scale of one million tons. With the development of the world economy, the demand for low-carbon olefins, especially propylene, is increasing day by day. According to the analysis of CMAI, the demand ...

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