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A gas oxidation combustion utilization method based on desulfurization and dehydration pretreatment

A pretreatment and gas technology, applied in the direction of combustion methods, chemical instruments and methods, combustion types, etc., can solve the unsatisfactory dehydration effect of mechanical dehydrators and affect the efficiency of heat energy utilization (power generation efficiency, refrigeration efficiency or heating efficiency, reduction Problems such as the heat output of the regenerative oxidation device, to achieve the effects of convenient, reliable and efficient treatment, improved combustion efficiency, sufficient and reliable combustion

Active Publication Date: 2019-11-15
CHONGQING UNIV
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Problems solved by technology

The field application results show that the dehydration effect of the mechanical dehydrator is not ideal, and a large amount of liquid free water may still enter the gas thermal storage combustion reactor, and absorb the oxidation heat of methane during the heating gasification process, reducing the output of the thermal storage oxidation device Heat, affecting thermal energy utilization efficiency (power generation efficiency, cooling efficiency or heating efficiency, etc.)
[0009] The above three existing gas oxidation device patents also do not involve the solution to the problem of sulfur and liquid free water in the gas source

Method used

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  • A gas oxidation combustion utilization method based on desulfurization and dehydration pretreatment
  • A gas oxidation combustion utilization method based on desulfurization and dehydration pretreatment

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Embodiment approach

[0038] Embodiment, a gas oxidative combustion utilization method based on desulfurization and dehydration pretreatment, including the step of oxidative combustion of gas by means of a gas oxidative combustion device. Set the moisture sorbent filler and / or the sulfur sorbent filler, and switch the direction of the inlet and outlet of the air inlet channel and the outlet channel according to a fixed time interval, so that the inlet channel relies on the moisture sorbent filler and / or the sulfur sorbent filler Realize the adsorption treatment of moisture and / or sulfur in the intake air, and at the same time make the moisture adsorbent packing and / or sulfur adsorbent packing adsorb moisture and / or the sulfur adsorbent packing in the last cycle time period by relying on the waste heat temperature of the outlet gas in the air outlet channel Or sulfur desorption treatment.

[0039] In this way, the moisture and sulfur contained in the intake air can be adsorbed and treated by the ads...

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Abstract

The invention discloses a gas oxidation combustion utilization method based on desulfurization and dehydration pretreatment. The method comprises the step of oxidizing combustion of gas by means of agas oxidation combustion device, and is characterized in that an air inlet passage and air outlet passage of the gas oxidation combustion device are internally provided with moisture sorbent filler and / or sulfur sorbent filler, the air inlet and outlet directions of the air inlet passage and air outlet passage are cyclically switched according to fixed time intervals to achieve adsorption treatment of moisture and / or sulfur in intake air, and desorption treatment of the moisture and / or sulfur in the air outlet passage is achieved. The gas oxidation combustion utilization method based on the desulfurization and dehydration pretreatment can pretreat the intake air to improve the heat energy utilization efficiency and improve the safety performance.

Description

technical field [0001] The invention relates to the field of energy utilization; in particular, it relates to a gas oxidation combustion utilization method based on desulfurization and dehydration pretreatment for the utilization of low-concentration gas heat energy. Background technique [0002] Low-concentration gas is coalbed methane with a methane concentration lower than 30%, which is divided into two parts: wind exhaust gas (“exhaust wind”) and drainage gas. Among them, exhaust gas is coal mine gas with methane concentration lower than 0.75%. According to the statistics of relevant departments, the methane emitted into the atmosphere from exhaust air in China every year is equivalent to the gas transmission volume of the West-East Gas Pipeline for one year, and the greenhouse gas effect produced is about 200 million tons of carbon dioxide equivalent. [0003] Therefore, there have been industrial application cases in the field of coal mines for the utilization of exha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23G7/06B01D53/02B01D53/26
CPCB01D53/02B01D53/261B01D2257/30B01D2257/80F23G7/063F23G7/068F23G2206/10F23G2206/20F23G2207/40
Inventor 高鹏飞苟小龙
Owner CHONGQING UNIV
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