Shanghai Yuanhan Energy & Chemical Technology Co., Ltd.

Xiangquan Zhang

Wenjun Wu

Yunfeng Zhang

Qing Liu

The present disclosure provides a method and a system for denitrogenation combustion and COcapture and utilization in a gas boiler. The method is implemented by the system for denitrogenation combustion and COcapture and utilization in the gas boiler, and comprises: after circulating flue gas is discharged from a gas boiler, introducing the circulating flue gas into a gas heat exchanger to perform heat exchange with natural gas, hydrogen, and carbon-based denitrogenation gas; introducing the circulating flue gas after heat exchange into a flue gas dehydration device to perform dehydration; introducing a first portion of the circulating flue gas after the heat exchange and dehydration into a blower through the flue gas dehydration device to be pressurized by the blower and introduced into a carbon-based denitrogenation gas mixer; preparing the carbon-based denitrogenation gas by mixing oxygen and the circulating flue gas using the carbon-based denitrogenation gas mixer for combustion for the gas boiler; and introducing a second portion of the circulating flue gas after heat exchange and dehydration into a COrecovery device to perform purification and deoxygenation through the flue gas dehydration device to obtain a COproduct, and pressurizing and transmitting the COproduct to a COutilization device through a COcompressor.

Methods and systems for denitrogenation combustion and COcapture and utilization in gas boilers

Disclosed is a combustion process of a glass kiln with non-catalytic reformers. A corresponding system includes the glass kiln, the non-catalytic reformers A/B, a flue gas recovery device, a chimney, a high-temperature flue gas fan, a natural gas supply device, and an oxygen supply device. The present disclosure circulates part of flue gas of the glass kiln and increases concentrations of vapor and carbon dioxide in the circulating flue gas, the vapor and the carbon dioxide in the circulating flue gas are subjected to a conversion and reforming reaction with natural gas in the non-catalytic reformers for recycling sensible heat of the high-temperature flue gas and meanwhile generating high-calorific-value water gas at 1300&#xb0; C. or above, thereby increasing a gross calorific value and a temperature of gas entering the glass kiln, and the high-calorific-value water gas, less unreacted natural gas, and oxygen are sufficiently combusted in the glass kiln.

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Shanghai, China

Xiangquan Zhang