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Method for sealing carbon dioxide

A carbon dioxide and chemical reaction technology, applied in chemical instruments and methods, organic chemistry, carbonate preparations, etc., can solve the problems of high energy consumption for adsorbent regeneration, inconspicuous carbon dioxide, and adsorbent loss, etc., and achieve high cost performance and avoid Energy consumption, the effect of avoiding energy loss

Active Publication Date: 2019-03-26
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has the disadvantages of high energy consumption for adsorbent regeneration and loss of adsorbent during the regeneration process. In fact, the effect of reducing carbon dioxide emissions is not obvious.

Method used

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  • Method for sealing carbon dioxide
  • Method for sealing carbon dioxide
  • Method for sealing carbon dioxide

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Embodiment Construction

[0046] Pass the purified power plant tail gas into the reaction bed filled with wet sodium carbonate, and react at 40°C to form sodium bicarbonate;

[0047] Add equal mass of water to sodium bicarbonate, 5% Pd / C (the load of Pd on C is 10%), stir, and feed hydrogen. The hydrogen pressure in the reactor is kept at 1 atmosphere. When the solid disappears and the pH remains constant, the reaction is completed, and the solution is evaporated, centrifuged and dried to obtain a sodium formate solid;

[0048] React the obtained sodium formate solid at 350°C for 35 minutes to complete the dehydrogenation of sodium formate to produce sodium oxalate.

[0049] Above-mentioned gained sodium oxalate is used in different washing powder formulations, and described washing powder preparation process is as follows:

[0050] According to the components and contents in Table 1, the raw materials were weighed. (1) Add deionized water into the batching pot, heat to 50-60°C, start stirring; (2) A...

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Abstract

The invention discloses a method for sealing carbon dioxide. According to the method, carbon dioxide is captured and absorbed by virtue of inorganic base and is directly applied to the production of oxalate, oxalate is taken as a detergent aid to be applied to a clothes detergent, and ucalcium oxalate crystals are formed by oxalate and calcium ions in water, so that the utilization and mineralization sealing of carbon dioxide are realized. Carbon dioxide is absorbed through carbonate and is directly applied to the production of oxalate, so that the loss of a large number of energy sources is avoided in the regeneration process of an adsorbent, and the zero release can be realized in the whole flow; and oxalate prepared during the production of carbon dioxide is taken as the detergent aid,oxalate is combined with the calcium ions so as to generate calcium oxalate precipitates in the washing process of clothes, so that the mineralization sealing of carbon dioxide is realized, and the greenhouse effect is relieved.

Description

technical field [0001] The invention relates to a method for utilizing and sequestering carbon dioxide, in particular to a method for preparing oxalate with carbon dioxide as a raw material and using the oxalate as a detergent builder to generate calcium oxalate during the use of detergent to achieve carbon dioxide utilization and The purpose of archiving. Background technique [0002] The main cause of global warming is the emission of greenhouse gases, CO 2 Contribution exceeds 60%. Among them, fossil fuel power generation accounts for the CO 2 1 / 4 of the emissions. In order to meet the electricity demand of daily life, CO emissions from coal-fired power plants 2 To be captured and utilized is an important issue. [0003] CO for coal-fired power plants 2 Questions that people ask different CO 2 The capture methods include physical adsorption, chemical adsorption, membrane separation, biological fixation and low temperature separation. Membrane separation is difficu...

Claims

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Application Information

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IPC IPC(8): C07C51/41C07C55/07C11D1/83C11D3/60C11D3/20C11D3/08C11D3/10C11D3/04C11D3/37C11D17/06
CPCC01D7/18C07C51/41C11D1/14C11D1/22C11D1/72C11D1/83C11D3/046C11D3/08C11D3/10C11D3/2082C11D3/225C11D17/06C07C55/07C07C53/06
Inventor 董晋湘李琛徐红
Owner TAIYUAN UNIV OF TECH
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