CN219010193U - Cement firing system for realizing carbon dioxide recycling - Google Patents
Cement firing system for realizing carbon dioxide recycling Download PDFInfo
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- CN219010193U CN219010193U CN202222933227.4U CN202222933227U CN219010193U CN 219010193 U CN219010193 U CN 219010193U CN 202222933227 U CN202222933227 U CN 202222933227U CN 219010193 U CN219010193 U CN 219010193U
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Abstract
The utility model discloses a cement firing system for realizing the recycling utilization of carbon dioxide, which relates to the technical field of carbon dioxide electrolytic reduction and comprises a carbon dioxide capturing part, a carbon dioxide electrolytic catalysis part and a methanol production part which are sequentially connected, wherein the carbon dioxide capturing part is used for generating carbon dioxide and purifying the carbon dioxide, the carbon dioxide electrolytic catalysis part is used for carrying out electrolytic catalytic reduction reaction on the carbon dioxide to generate oxygen and synthesis gas, and the methanol production part is used for processing the synthesis gas into liquid fuel methanol.
Description
Technical Field
The utility model relates to a carbon dioxide electrolytic reduction device, in particular to a cement firing system for realizing the recycling utilization of carbon dioxide.
Background
The production of cement plants produces a large amount of tail gas containing carbon dioxide, which is unfavorable for reducing greenhouse effect and is unfavorable for environmental protection, but the tail gas treatment of the cement plants is mostly dust removal, sulfur removal and other processes at present, the treatment of carbon dioxide is mainly absorption, the carbon dioxide is not recycled, and the sulfur removal link can be reduced in the production of methanol by high-concentration carbon dioxide, so that the optimization of the current system is required.
Disclosure of Invention
The utility model aims to provide a cement burning system for realizing the recycling utilization of carbon dioxide so as to solve the defects caused by the prior art.
The cement firing system for realizing the recycling utilization of the carbon dioxide comprises a carbon dioxide capturing part, a carbon dioxide electrolysis catalysis part and a methanol production part which are sequentially connected, wherein the carbon dioxide capturing part is used for generating carbon dioxide and purifying the carbon dioxide, the carbon dioxide electrolysis catalysis part is used for carrying out electrolysis catalytic reduction reaction on the carbon dioxide to generate oxygen and synthesis gas, and the methanol production part is used for processing the synthesis gas into liquid fuel methanol.
Preferably, the carbon dioxide capturing part comprises a cement kiln, a carbonator and a calcium carbonate calciner which are connected in sequence, wherein the cement kiln is used for generating tail gas rich in carbon dioxide, a calcium oxide adsorbent which is used for reacting with the tail gas to generate calcium carbonate is added into the carbonator, and limestone is added into the calcium carbonate calciner to react with the calcium carbonate to generate high-concentration carbon dioxide.
Preferably, the carbon dioxide electrolysis catalysis part comprises a solar electric plate group, an electrolytic cell and a drying box which are sequentially connected, wherein the solar electric plate group is used for providing electric energy for the electrolytic cell, the electrolytic cell is a solid oxide electrolytic cell and is used for carrying out electrocatalytic reduction reaction on carbon dioxide, and the drying box is used for drying oxygen generated from an anode of the electrolytic cell.
Preferably, the drying box is respectively connected with the cement kiln and the calcium carbonate calciner and is used for sending the dried oxygen into the cement kiln for oxygen-enriched combustion and the calcium carbonate calciner for pure oxygen calcination.
Preferably, the methanol production part comprises a compressor, a synthesis tower, a condenser and a distiller, wherein the compressor is used for compressing and pressurizing the synthesis gas and providing high-pressure gas for subsequent reactions, the synthesis tower is used for enabling carbon monoxide and hydrogen in the synthesis gas to react to generate methanol, the condenser is used for condensing crude methanol to generate a crude methanol liquid mixture, and the distiller is used for distilling and purifying the crude methanol into refined methanol.
The utility model has the advantages that: the utility model is used for recycling the carbon dioxide in the tail gas generated by the cement kiln, and the system is environment-friendly, saves energy, has high methanol production purity, avoids a methanol sulfur removal link, and simplifies the production process.
Drawings
FIG. 1 is a schematic diagram of the components of the present utility model.
Wherein: 1-carbon dioxide capturing part, 2-carbon dioxide electrolysis catalysis part, 3-methanol production part, 11-cement kiln, 12-carbonator, 13-calcium carbonate calciner, 21-solar panel group, 22-electrolytic cell, 23-drying box, 31-compressor, 32-synthesizing tower, 33-condenser and 34-distiller.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
As shown in fig. 1, a cement firing system for realizing recycling of carbon dioxide comprises a carbon dioxide capturing part 1, a carbon dioxide electrolysis catalysis part 2 and a methanol production part 3 which are sequentially connected, wherein the carbon dioxide capturing part 1 is used for generating carbon dioxide and purifying the carbon dioxide, the carbon dioxide electrolysis catalysis part 2 is used for carrying out electrolysis catalysis reduction reaction on the carbon dioxide to generate oxygen and synthesis gas, and the methanol production part 3 is used for processing the synthesis gas into liquid fuel methanol;
the carbon dioxide capturing part 1 comprises a cement kiln 11, a carbonator 12 and a calcium carbonate calciner 13 which are connected in sequence, wherein the cement kiln 11 is used for generating tail gas rich in carbon dioxide, a calcium oxide adsorbent which is used for reacting with the tail gas to generate calcium carbonate is added into the carbonator 12, and limestone is added into the calcium carbonate calciner 13 to react with the calcium carbonate to generate high-concentration carbon dioxide.
In this embodiment, the carbon dioxide electrolysis catalytic part 2 includes a solar panel set 21, an electrolytic cell 22 and a drying oven 23 connected in sequence, the solar panel set 21 is used for providing electric energy for the electrolytic cell 22, and the electrolytic cell 22 is a solid oxide electrolytic cell 22 for performing electrocatalytic reduction reaction on carbon dioxide;
the drying box 23 is used for drying oxygen generated from the anode of the electrolytic cell 22, and the drying box 23 is respectively connected with the cement kiln 11 and the calcium carbonate calciner 13 and is used for sending the dried oxygen into the cement kiln 11 for oxygen-enriched combustion and the calcium carbonate calciner 13 for pure oxygen calcination.
In this embodiment, the methanol production section 3 includes a compressor 31, a synthesis tower 32, a condenser 33 and a distiller 34, which are sequentially connected, the compressor 31 is used for compressing and pressurizing the synthesis gas and providing high-pressure gas for subsequent reaction, the synthesis tower 32 is used for reacting carbon monoxide and hydrogen in the synthesis gas to generate methanol, the condenser 33 is used for condensing crude methanol to generate a crude methanol liquid mixture, and the distiller 34 is used for distilling and purifying the crude methanol into refined methanol.
The working principle of the utility model is as follows: the tail gas generated in the working process of the cement kiln enters the carbonator 12, carbon dioxide in the tail gas reacts with a calcium oxide adsorbent to generate calcium carbonate, the generated calcium carbonate is sent into the calcium carbonate calciner 13, limestone is added to calcine to generate calcium oxide and high-concentration carbon dioxide, the high-concentration carbon dioxide enters the solid oxide electrolytic cell 22, the electrolytic cell 22 carries out electrocatalytic reduction reaction on the carbon dioxide under the energy supply of the solar panel group 21, oxygen is generated at the anode of the electrolytic cell 22 and is respectively sent into the cement kiln 11 and the calcium carbonate calciner 13 for oxygen-enriched combustion after being dried by the drying box 23, the synthetic gas of carbon monoxide and hydrogen generated at the cathode of the electrolytic cell 22 is firstly sent into the compressor 31 to be compressed under high pressure, the compressed high-pressure synthetic gas enters the synthesizing tower 32 to generate methanol mixed gas under high temperature and high pressure environment, the mixed gas generates coarse methanol under the action of the condenser 33, and the coarse methanol enters the distiller 34 to purify to generate refined methanol, and the sulfur removal treatment is not needed because the sulfide in the raw materials is not involved.
Based on the above, the utility model is used for recycling the carbon dioxide in the tail gas generated by the cement kiln, and the system is environment-friendly, saves energy, has high methanol production purity, avoids a methanol sulfur removal link, and simplifies the production process.
It will be appreciated by those skilled in the art that the present utility model can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the utility model or equivalents thereto are intended to be embraced therein.
Claims (5)
1. The cement burning system for realizing the recycling utilization of the carbon dioxide is characterized by comprising a carbon dioxide capturing part (1), a carbon dioxide electrolysis catalysis part (2) and a methanol production part (3) which are sequentially connected, wherein the carbon dioxide capturing part (1) is used for generating carbon dioxide and purifying the carbon dioxide, the carbon dioxide electrolysis catalysis part (2) is used for carrying out an electrolysis catalytic reduction reaction on the carbon dioxide to generate oxygen and synthesis gas, and the methanol production part (3) is used for processing the synthesis gas into liquid fuel methanol.
2. The cement calcination system for realizing the recycling of carbon dioxide according to claim 1, wherein the carbon dioxide capturing part (1) comprises a cement kiln (11), a carbonator (12) and a calcium carbonate calciner (13) which are sequentially connected, the cement kiln (11) is used for generating tail gas rich in carbon dioxide, a calcium oxide adsorbent for reacting with the tail gas to generate calcium carbonate is added into the carbonator (12), and limestone is added into the calcium carbonate calciner (13) to react with the calcium carbonate to generate high-concentration carbon dioxide.
3. Cement calcination system for the realization of the utilization of carbon dioxide resources according to claim 1, characterized in that the carbon dioxide electrolysis catalytic section (2) comprises a solar electric panel group (21), an electrolytic cell (22) and a drying box (23) which are connected in sequence, the solar electric panel group (21) is used for providing electric energy for the electrolytic cell (22), the electrolytic cell (22) is a solid oxide electrolytic cell (22) for carrying out electrocatalytic reduction reaction on carbon dioxide, and the drying box (23) is used for drying oxygen generated from the anode of the electrolytic cell (22).
4. A cement calcination system for realizing the recycling of carbon dioxide according to claim 3, wherein the drying box (23) is respectively connected with the cement kiln (11) and the calcium carbonate calciner (13) and is used for sending the dried oxygen into the cement kiln (11) for oxygen-enriched combustion and the calcium carbonate calciner (13) for pure oxygen calcination.
5. Cement calcination system for the realization of carbon dioxide recycling according to claim 1, characterized in that the methanol production section (3) comprises a compressor (31), a synthesis tower (32), a condenser (33) and a distiller (34) connected in sequence, the compressor (31) being used for compressing and pressurizing the synthesis gas and providing high pressure gas for the subsequent reaction, the synthesis tower (32) being used for reacting carbon monoxide and hydrogen in the synthesis gas to produce methanol, the condenser (33) being used for condensing the crude methanol to produce a crude methanol liquid mixture, the distiller (34) being used for distillatively purifying the crude methanol to refined methanol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222933227.4U CN219010193U (en) | 2022-11-03 | 2022-11-03 | Cement firing system for realizing carbon dioxide recycling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222933227.4U CN219010193U (en) | 2022-11-03 | 2022-11-03 | Cement firing system for realizing carbon dioxide recycling |
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| CN219010193U true CN219010193U (en) | 2023-05-12 |
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| CN202222933227.4U Active CN219010193U (en) | 2022-11-03 | 2022-11-03 | Cement firing system for realizing carbon dioxide recycling |
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