China Petroleum Chemical Corporation

China Petroleum & Chemical Corporation Qingdao Research Institute of Safety Engineering

Sinopec Research Institute Op Safety Engineering

Sinopec Research Institute of Safety Engineering

Xiaodong Mu

Lin Wang

Shanjun Mu

Quanzhen Liu

Weihua Zhang

Chunming Jiang

Jingfeng Wu

Longmei Tan

Zuzheng Shang

Rifeng Zhou

Jianxiang Li

Hui Yu

Xuqing Lang

Shucai Zhang

Yuxin Zhao

A foam production method includes mixing liquid nitrogen with a foaming material to produce foam. A gas is produced in situ from liquid nitrogen. As the ratio of the volume of the gas produced by gasification of liquid nitrogen to the volume of the liquid nitrogen is relatively high, when a large gas supply flow is needed to generate a large foam flow, a liquid nitrogen storage device of a small volume can be used instead of bulky air supply devices such as high-pressure gas cylinders, air compressors, air compressor sets and the like, reducing the volume of the air supply device. In addition, the liquid nitrogen used in foaming will release nitrogen gas after the foam blast, such that the nitrogen is also able to inhibit combustion on the surface of burning materials, accelerating the extinguishing of the fire.

Foam producing method, fire extinguishing method, and appliance for foam extinguishing

The present disclosure relates to a carbon-based porous material microscopically exhibiting a three-dimensional cross-linked net-like hierarchical pore structures with micropores nested in mesopores that are in turn nested in macropores. Such material provides for accelerated adsorption and desorption rates and lower desorption temperatures for recovery of organic gas molecules.

Carbon-based porous material and preparation method and use thereof

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Qingdao, China

Xiaodong Mu