Method for preparing modified porous alumina decarburizing agent

A technology of porous alumina and decarburizer, applied in chemical instruments and methods, separation methods, alkali metal oxides/hydroxides, etc., can solve the problem of decreasing catalyst utilization rate, reducing the specific surface of absorbent, and uncontrollable loading and other problems, to achieve the effect of obvious synergy, high decarbonization selectivity, and wide range of tunability.
CN107970877AActive Publication Date: 2018-05-01WUHAN TEXTILE UNIV
10 Cites 4 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN TEXTILE UNIV
Publication Date
2018-05-01

Smart Images

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

Abstract

The invention discloses a method for preparing a modified porous alumina decarburizing agent, and belongs to the technical field of environmental protection and chemical industry. According to the method for preparing the modified porous alumina decarburizing agent, composite oxides are prepared by performing co-precipitation on one or more soluble salts of Al<3+>, alkaline earth metal, transitionmetal and other metal, and alkali metal salts and a molecular sieve are adopted as auxiliary agents to mix and dissolve the composite oxides directly in a solution mode. Compared with composite oxides which are obtained by using an ordinary impregnation method and a spray method, the prepared composite oxides have a specific surface area, more uniform pore size distribution, richer active sites and more dispersed active centers, the synergistic effect between the main active component and auxiliary agents is more significant, and the utilization rate of the active component is higher.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical fields of environmental protection and chemical industry, in particular to a preparation method of a modified porous alumina decarburizer. Background technique

[0002] With the increasing demand for olefins, the traditional petroleum-based olefins can no longer meet the market demand. my country's energy structure is "rich in coal, short of oil, and low in gas", so coal-to-olefins has gradually become an important way to realize the national strategy of replacing oil with coal. Coal-to-olefins is mainly divided into three steps: coal-to-gas, gas-to-methanol, and methanol-to-olefins. The obtained polymer-grade olefins often still contain traces of acid gases such as carbon dioxide, carbon monoxide, and sulfide. These impurity gases are synthesized Its downstream products will lead to poisoning and deactivation of the catalyst, reduce the selectivity of the catalyst, and then cause a series of problems such as a d...

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