Anaerobic biogas biological desulfurization treatment device and method

A biological desulfurization and treatment device technology, applied in the direction of gas fuel, petroleum industry, fuel, etc., can solve the problem of low desulfurization removal rate, and achieve the effect of unattended management, maximum economic benefits, and high degree of automation

Pending Publication Date: 2021-09-24
BIOLAND ENVIRONMENTAL TECH GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it generally has the problem of low desulfurization removal rate

Method used

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  • Anaerobic biogas biological desulfurization treatment device and method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] 55℃ high temperature anaerobic biogas at 1500m 3 / h rate enters as figure 1 The biogas biological desulfurization treatment device shown has a hydrogen sulfide concentration of 1200ppm. It is processed through the following steps:

[0070] (1) Cold dry system

[0071] The anaerobic biogas enters the coarse filter, and the water droplets and solid particles entrained in the anaerobic biogas are filtered out; the filtered biogas enters the tubular heat exchanger for heat exchange and cooling, and the outlet temperature of the tubular heat exchanger is controlled at 30°C;

[0072] The biogas after heat exchange enters the gas-liquid separator for gas-liquid separation, and the dehumidified biogas enters the desulfurization system for desulfurization treatment. The discharge flow rate of the drain pipe is 136kg / h.

[0073] (2) Biological desulfurization system

[0074] The dehumidified biogas is mixed with fresh air and enters the biological desulfurization system for ...

Embodiment 2

[0078] 55℃ high temperature anaerobic biogas at 550m 3 / h rate enters as figure 1 The biogas biological desulfurization treatment device shown has a hydrogen sulfide concentration of 2500ppm. It is processed through the following steps:

[0079] (1) Cold dry system

[0080] The anaerobic biogas enters the coarse filter, and the water droplets and solid particles entrained in the anaerobic biogas are filtered out; the filtered biogas enters the tubular heat exchanger for heat exchange and cooling, and the outlet temperature of the tubular heat exchanger is controlled at 22°C;

[0081] The biogas after heat exchange enters the gas-liquid separator for gas-liquid separation, and the dehumidified biogas enters the desulfurization system for desulfurization treatment. The discharge flow rate of the discharge pipe is 52kg / h.

[0082] (2) Biological desulfurization system

[0083] The dehumidified biogas is mixed with fresh air and enters the biological desulfurization system fo...

Embodiment 3

[0087] 50℃ high temperature anaerobic biogas at 1800m 3 / h rate enters as figure 1 The biogas biological desulfurization treatment device shown has a hydrogen sulfide concentration of 1500ppm. It is processed through the following steps:

[0088] (1) Cold dry system

[0089] The anaerobic biogas enters the coarse filter to filter out the water droplets and solid particles entrained in the anaerobic biogas; the filtered biogas enters the tubular heat exchanger for heat exchange and cooling, and the outlet temperature of the tubular heat exchanger is controlled to 32°C;

[0090] The biogas after heat exchange enters the gas-liquid separator for gas-liquid separation, and the dehumidified biogas enters the desulfurization system for desulfurization treatment. The discharge flow rate of the discharge pipe is 160kg / h.

[0091] (2) Biological desulfurization system

[0092] The dehumidified biogas is mixed with fresh air and enters the biological desulfurization system for desu...

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Abstract

The invention provides an anaerobic biogas biological desulfurization treatment device and method. The anaerobic biogas biological desulfurization treatment device comprises a cold drying system, a biological desulfurization system and a pressurization system; the cold drying system comprises a coarse filter, a tubular heat exchanger and a gas-liquid separator; the biological desulfurization system comprises a high-pressure fan, a desulfurization tower, a nutrient solution storage tank, a circulating pump, a peristaltic pump and a plate heat exchanger; the pressurization system comprises a gas storage tank, a Roots blower and a fine filter; the device has the advantages that 1, the biological desulfurization removal rate is high and can reach 95% or above; and the treatment cost is low and is about 0.02 yuan/m3 of biogas; 2, the process flow is short, the automation degree is high, and unattended management can be realized; 3, the H2S-removed biogas can be used for power generation or can be merged into a household gas pipe network after being further treated, so that the economic benefit is maximized; and 4, the invention provides a new biogas biological desulfurization technology, and provides a new thought for biogas engineering.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a treatment device and method for biological desulfurization of anaerobic biogas. Background technique [0002] At present, in the environment of global energy shortage, the development and utilization of new energy is of great significance to the sustainable development of the national economy. As a renewable energy with broad application prospects, biogas energy has the characteristics of abundant resources, high combustion thermal efficiency, and clean and hygienic use. It plays an important role in solving energy crisis, environmental pressure, and promoting sustainable social development. [0003] At present, my country's kitchen waste, kitchen waste, wheat straw, etc. are mainly treated by landfill and incineration; when landfill is used, a large amount of landfill leachate will be generated during the landfill process, which will reduce the ser...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L3/10
CPCC10L3/103C10L3/101C10L3/106
Inventor 施军营陈伟民平义超王超王志磊张胜兵
Owner BIOLAND ENVIRONMENTAL TECH GRP CORP
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