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Online-renewable biogas dry-process desulfurizing device and method

A dry desulfurization and biogas technology, applied in separation methods, chemical instruments and methods, gas fuels, etc., can solve problems such as high cost and complex process, achieve low cost, prolong service life, and realize the effect of automatic operation

Active Publication Date: 2018-08-21
华夏碧水环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The invention provides an on-line regenerable biogas dry desulfurization device and its desulfurization method, which solves the problems of high cost, complicated process and the like that inert gas is needed in the oxidant regeneration process in the existing dry desulfurization device

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  • Online-renewable biogas dry-process desulfurizing device and method

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Embodiment 1

[0027]An on-line regenerable biogas dry desulfurization device, comprising a dry desulfurization tower main body 13, an online regeneration device and a PLC controller 19, the inside of the dry desulfurization tower main body 13 is provided with several layers of desulfurizer supporting partitions, desulfurization The agent supporting partition 10 divides the main body 13 of the dry desulfurization tower into several desulfurizing agent filling areas 12, the desulfurizing agent filling area 12 is filled with iron oxide desulfurizing agent, and the bottom of the dry desulfurizing tower main body 13 is provided with biogas Intake pipe, biogas check valve 2 and biogas flow meter 3 are arranged in turn on the biogas inlet pipe, biogas outlet 15 and exhaust port 16 are arranged on the top of the dry desulfurization tower main body 13, and the biogas outlet 15 is provided with a gas detector 17; the online regeneration device includes an air intake pipe connected with the biogas inta...

Embodiment 2

[0035] An on-line renewable biogas dry desulfurization method adopts the biogas dry desulfurization device of embodiment 1, comprising the following steps:

[0036] (1) The biogas enters the main body 13 of the dry desulfurization tower through the biogas inlet pipe 1. After the biogas enters the main tower, it passes through the desulfurizer supporting partition 10 and the desulfurizer loading area 12 in turn, and then is discharged through the biogas outlet 15. The gas detector 17 Measure the outlet hydrogen sulfide concentration and oxygen concentration. When the outlet hydrogen sulfide content is higher than 100ppm for 1 hour, the desulfurizer is basically saturated, and online regeneration is started;

[0037] (2) Air is injected through the air compressor 4 through the air intake pipe 7, and the oxygen in the air is used to regenerate the reacted desulfurizer. The air flow meter 5 is used to measure the intake air volume, and the electric control valve 6 is used to adjust...

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Abstract

The invention relates to an online-renewable biogas dry-process desulfurizing device which comprises a dry-type desulfurizing tower body, an online regeneration device and a PLC. The online regeneration device comprises an air incoming pipe communicated with a biogas incoming pipe and a plurality of electronic thermometers, the inlet end of the air incoming pipe is connected with an air compressor, an air flowmeter, an electric adjusting valve and an air one-way valve are sequentially arranged on the air incoming pipe, the electronic thermometers are arranged at different positions of a desulfurizing agent filling area, and a biogas flowmeter, a gas detector, the air flowmeter, the electric adjusting valve, the electronic thermometers and the air compressor are connected with the PLC. Thebiogas dry-process desulfurizing device realizes online regeneration of a ferric oxide desulfurizing agent therein, prolongs service life of the desulfurizing agent for 3-4 times, saves expense of thedesulfurizing agent, realizes automatic running, avoids safety risk caused by improper operation and adds a guarantee for biogas utilization.

Description

technical field [0001] The invention relates to an on-line regenerable biogas dry desulfurization device and a desulfurization method thereof, belonging to the technical field of dry desulfurization. Background technique [0002] Biogas is a kind of combustible gas produced by the fermentation of various organic substances by microorganisms in the isolation of air (reducing conditions) and at a suitable temperature and pH value. Biogas belongs to secondary energy and is renewable energy. The calorific value of biogas per cubic meter is about 20800-23600 kJ, which is equivalent to the heat provided by 0.7 kg of anthracite, so it is a good energy source. The main components of biogas include: 50%-80% methane (CH 4 ), 20%-40% carbon dioxide (CO 2 ), 0%-5% nitrogen (N 2 ), less than 1% hydrogen (H 2 ), less than 0.4% oxygen (O2) and 0.1%-3% hydrogen sulfide (H 2 S) and other gases. At present, most of the biogas generated in industrial production comes from the anaerobic f...

Claims

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Application Information

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IPC IPC(8): B01D53/81B01D53/52B01D53/96C10L3/10
CPCB01D53/52B01D53/81B01D53/96C10L3/103
Inventor 张传兵徐亚慧王慧芳侯亚平徐漫漫刘少甫赵金中张真张勇万亚飞罗建辉申志华陈俊文纪宏涛龚涛侯亚龙江嘉晶
Owner 华夏碧水环保科技股份有限公司
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