Surface coating modified nano calcium oxide based CO2 adsorbing agent and preparation method thereof

A nano-calcium oxide, surface coating technology, applied in chemical instruments and methods, separation methods, other chemical processes, etc., can solve the problems of no reported coating, low adsorption efficiency, long synthesis time, etc., and achieve good microstructure performance. , the method is simple, the effect of modification stability
CN103962087AActive Publication Date: 2014-08-06ZHEJIANG UNIV
5 Cites 25 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2014-08-06

Smart Images

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

Abstract

The invention discloses a surface coating modified nano calcium oxide based CO2 adsorbing agent which is composed of internal nano calcium oxide and an external surface coating layer; the surface coating layer is prepared from at least one of Al2O3, Ca12Al14O33 and MgO. The invention further discloses a preparation method of the surface coating modified nano calcium oxide based CO2 adsorbing agent. An adsorption phase reaction method is utilized, and thickness and uniformity of the surface coating layer are controlled by controlling a reaction field, the method is simple and regulation and control are facilitated; according to the invention, the prepared surface coating modified nano calcium oxide based CO2 adsorbing agent has high CO2 adsorption capacity and obvious stability in adsorption ability in manifold cycles, can be in long-term recycling, and is an ideal adsorption agent in the adsorption process of high-temperature CO2.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field

[0001] The invention relates to the field of environmental energy saving and emission reduction and CO 2 The field of hydrogen production enhanced by reactive adsorption, specifically relates to a surface-coated modified nano-calcium oxide-based CO 2 Adsorbent and its preparation method. Background technique

[0002] The energy consumption of human activities brings about greenhouse gas emissions. Fossil fuel thermal power plants are CO 2 The main source of emissions, which accounts for about 1 / 3 of the total anthropogenic emissions, is currently reducing CO 2 The measure of emissions is the CO produced after burning fossil fuels 2 Carry out capture, storage and utilization, so as to achieve the purpose of effective emission reduction. Commonly used to capture CO 2 The methods include absorption separation method, adsorption separation method,

[0003] Membrane separation methods, etc., these methods are generally carried out at a lower temperature, so it is necess...

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