Waste treatment and power generation exhaust treatment-Guangdong GRVNES Environmental Protection Technology Co., Ltd.

Waste treatment and power generation exhaust treatment

Green Valley environmental protection has developed a set of "grvnes" SCR denitration system for nitrogen oxide treatment in landfill gas power generation after years of painstaking research. After special design, the system can still realize high-efficiency operation under the condition of unstable exhaust temperature and gas quality; Important parts can withstand the common impurities in landfill gas and ensure the long-term stable operation of the system.

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treatment of the landfill generation power and gas ammonia in

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Unit waste gas treatment

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Technology Introduction

Landfill gas power generation refers to the generation of power through a large amount of biogas (LFG landfill gas) produced by anaerobic fermentation of organic matter in the landfill, which not only reduces the air pollution caused by waste incineration, but also makes effective use of resources.

As the emission of nitrogen oxides in the process of landfill gas power generation needs to meet the requirements of the environmental protection department, it can be discharged into the atmosphere only after treatment.

Green Valley environmental protection has developed a set of "grvnes" SCR denitration system for nitrogen oxide treatment in landfill gas power generation after years of painstaking research.

Technical advantages

1. Mature and reliable technology, high denitration efficiency, reduce ammonia escape and reduce secondary pollution;

2. Fast reaction speed;

3. Uniform ammonia injection, small resistance, less ammonia consumption and relatively low operation cost;

4. It can be applied to denitration at low, medium and high temperatures.

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Green Valley environmental protection has developed a set of "grvnes" SCR denitration system for the treatment of nitrogen oxides in distributed energy power generation after years of painstaking research. After special design, the system can still realize high-efficiency operation under the condition of unstable exhaust temperature and gas quality; Important parts can withstand the common impurities in landfill gas and ensure the long-term stable operation of the system.

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Selective catalytic reduction (SCR) is used to control NOx in diesel engine exhaust. NH3 or urea (usually urea aqueous solution with mass ratio of 32.5%) is used as reducing substance. Under the condition that O2 concentration is more than two orders of magnitude higher than NOx concentration, under the action of certain temperature and catalyst, NH3 is used to reduce NOx to N2 and H2O. Because NH3 is highly selective, NOx is preferentially reduced, It does not react with O2 first, so it is called "selective catalytic reduction". For excess NH3, a certain proportion of ammonia escape catalyst (ASC) is coated at the end of SCR carrier to ensure that NH3 reacts with O2 to generate N2 and H2O and avoid secondary pollution caused by NH3 leakage. The exhaust temperature after diesel engine or gas engine turbine is generally in the range of 300 ℃ to 500 ℃, which meets the temperature conditions required for medium temperature catalytic reaction. If the temperature after vortex is higher than 500 ℃, high-temperature catalyst shall be considered, and the system cost will increase in a certain proportion.

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Green Valley environmental protection has developed a set of "grvnes" SCR denitration system for the treatment of nitrogen oxides in gas power generation after years of painstaking research. After special design, the system can still realize high-efficiency operation under the condition of unstable exhaust temperature and gas quality; Important parts can withstand the common impurities in landfill gas and ensure the long-term stable operation of the system.

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Green Valley environmental protection has developed a set of "grvnes" SCR denitration system for nitrogen oxide treatment in anaerobic biogas power generation after years of painstaking research. After special design, the system can still realize high-efficiency operation under the condition of unstable exhaust temperature and gas quality; Important parts can withstand the common impurities in landfill gas and ensure the long-term stable operation of the system.

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