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CO2 zero-emission ammonia synthesis system and method based on iodine-sulfur semi-open circulating hydrogen production and application of CO2 zero-emission ammonia synthesis system and method

A semi-open, zero-emission technology, applied in the production of sulfur compounds, hydrogen, preparation/separation of ammonia, etc., can solve the problems of limited installed capacity, the total amount of hydrogen is difficult to meet the hydrogen demand, etc., to reduce energy consumption, The effect of simplifying the process flow and reducing the system investment

Active Publication Date: 2021-09-17
国能经济技术研究院有限责任公司
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Benefits of technology

This patented technology allows for efficient use of natural carbon sources like coal without generating greenhouse gases during their manufacture. Instead, this new method involves converting them into more stable forms called mixed hydride (H2)), reducing environmental concerns associated with conventional methods. Additionally, the H2 obtained through decomposing sulfur containing compounds has less pollution compared to existing processes. Overall, this innovative approach makes producing pure hydrogen fuel economically feasible on an industry scale.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the efficiency at producing pure carbons while also minimizing greenhouse gases released during combustion processes such as burning fuels like coal.

Method used

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  • CO2 zero-emission ammonia synthesis system and method based on iodine-sulfur semi-open circulating hydrogen production and application of CO2 zero-emission ammonia synthesis system and method
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  • CO2 zero-emission ammonia synthesis system and method based on iodine-sulfur semi-open circulating hydrogen production and application of CO2 zero-emission ammonia synthesis system and method

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Embodiment 1

[0047] Based on the production of 300,000 tons / year of methanol, the above method was used to calculate the overall performance of the system at base load in Example 1. Generally, the comprehensive energy utilization efficiency of coal-to-synthetic ammonia is about 50% to 55%, and the CO in the production process of coal as raw material 2 The emission is about 600,000 tons / year, and the raw coal consumption is about 300,000 tons / year. The energy utilization efficiency of the system in Example 1 of the present invention is about 59%, and the CO in the production process 2 The emission is 0, and the coal consumption is reduced by 300,000 tons / year.

[0048] Table 1 embodiment overall performance data

[0049]

[0050] Wherein, the calculation formula of synthetic ammonia energy utilization efficiency η is as follows:

[0051]

[0052] Among them, HHV 氨 ——higher calorific value of ammonia, MJ / kg;

[0053] m 氨 —mass of ammonia, kg;

[0054] q 黄铁矿 — calorific value of...

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Abstract

The invention relates to a CO2 zero-emission ammonia synthesis system and method based on iodine-sulfur semi-open type circulating hydrogen production and application of the CO2 zero-emission ammonia synthesis system and method. The system comprises an air separation device, an H2S preparation device, a Bunsen reaction device, an HI decomposition device and an NH3 synthesis device, by means of the system, hydrogen is prepared by decomposing water through a chemical method, reaction conditions are mild, the application range of the system in industrial practice is widened, energy consumption is reduced, the energy efficiency of the system is improved, and the system is a hydrogen production system which is low in energy consumption, zero in CO2 emission and capable of being industrially applied on a large scale.

Description

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Claims

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Application Information

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Owner 国能经济技术研究院有限责任公司
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