Garbage power plant biogas purification efficient cooperative treatment system developed based on MDEA process

The MDEA-based biogas purification system efficiently removes CO2 and H2S from biogas, enhancing its quality for natural gas pipelines by integrating biogas and flue gas purification systems, leveraging existing power plant resources for cost-effective and efficient biogas treatment.

CN119144365APending Publication Date: 2024-12-17SIRUI ENVIRONMENTAL ENERGY TECH (JIAXING) CO LTD
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Patent Information

Application Number
CN202410954680.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-07-17
Publication Date
2024-12-17

AI Technical Summary

Technical Problem

Biogas from waste incineration power plants contains high concentrations of CO and H2S, along with trace impurities, making it difficult to be directly used as a fuel and requiring efficient purification to meet natural gas pipeline standards.

Method used

A coordinated treatment system utilizing a biogas purification process based on the MDEA process, including a biogas purification system with a gas-liquid separator, freeze dryer, biogas compressor, and heat exchanger, combined with a flue gas purification system using membrane water-cooled walls and other methods, to remove impurities and achieve high-purity biogas.

Benefits of technology

The system effectively removes CO2 and H2S impurities, producing high-quality biogas suitable for municipal natural gas pipelines, optimizing resource utilization and reducing construction and operational costs through integrated resource management.

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Abstract

The invention discloses a garbage power plant biogas purification efficient cooperative treatment system developed based on an MDEA process, which comprises a garbage bin, an incinerator, a boiler system, a steam turbine, an electrical system, a biogas purification system, a penetrating fluid and industrial wastewater treatment system, a penetrating fluid collection pool, a primary fan, an induced draft fan and a flue gas purification system, and belongs to the field of biogas purification. The matched public engineering system comprises electric power, steam, circulating cooling water, waste water and waste gas treatment systems; according to the power generation principle of the garbage power plant, steam is produced mainly through garbage incineration, a power generator is driven by the steam to generate power, and meanwhile the garbage power plant is provided with a wastewater treatment system, a waste gas treatment system and a circulating cooling water system in a matched mode. Therefore, electric power and steam resources of the garbage power plant are endowed, self-production and self-use are achieved, the waste water and waste gas treatment system can cooperatively treat biogas condensate water and acid gas, and the circulating cooling water system can provide sufficient cooling water resources.
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Citation Information

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