A gas distributed energy denitrification system device and operation method

Abstract

The invention relates to a gas-fired distributed energy denitrification system device and an operating method, in order to solve the problem that the exhaust gas temperature of an internal combustion engine exceeds the upper limit of the catalyst application temperature range during SCR denitrification, causing the catalyst to be easily deactivated and affecting the normal operation of the system. The invention includes a high-efficiency mixer, an integrated denitrification reactor, a No. 1 flue, a No. 1 waste heat recovery device, a No. 2 flue, a chimney, a controller, a flow regulating device and a reducing agent production system device; the high-efficiency mixer is equipped with Reductant nozzle device and swirl device, integrated denitrification reactor is equipped with heat exchanger, temperature sensor and catalyst device, reductant production system device includes reductant storage device, No. 2 waste heat recovery device, reductant preparation device, smoke Gas heater and reducing agent preparation raw material storage device. The invention fully combines the working characteristics of the internal combustion engine distributed energy system and the catalytic characteristics of the SCR method, and realizes the efficient and stable operation of the SCR method catalyst under all working conditions.

Description

technical field [0001] The invention relates to the removal of pollutants in a gas distributed energy supply system, in particular to a gas distributed energy denitrification system device and an operating method. Background technique [0002] In recent years, domestic and foreign gas distributed energy supply technology has become more and more widely used. The main types include gas internal combustion engine distributed energy energy supply system, gas turbine unit distributed energy energy supply system, micro gas turbine distributed energy Distributed energy supply system due to its own combustion and working principles, resulting in NO in flue gas emissions X The emission content is high. In addition, the exhaust gas temperature varies greatly with the operating load of the system, and the lower the load, the higher the exhaust gas temperature. Therefore, how to stably realize the NO X Up-to-standard discharge has become a key issue that needs to be solved urgently. ...

AI Technical Summary

Problems solved by technology

For the gas-fired internal combustion engine distributed energy energy supply system, the operating temperature conditions of the SCR method can basically be met when the design operating conditions are operated, but the exhaust gas temperature of the internal combustion engine is generally higher than 400°C, exceeding the upper limit of the application temperature range of the SCR method catalyst, resulting in the catalyst being easily deactivated, which in turn affects the normal operation of the SCR denitrification system of the distributed energy supply system of the gas internal combustion engine, and significantly increases the replacement cost of the catalyst

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