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Wuzheng Engineering (Shanghai)Co., Ltd.

Products Coal Chemical/Petrochemical Industry
产品名称

The technology of Coal pyrolysis poly-generation

1.    Background

The characteristics of China's energy reserves are 'rich in coal, short of oil, short of gas'. Coal has a high position in the national energy strategy. China's coal resources are mainly medium and low grade coal. These coals are highly volatile and suitable for pyrolysis poly-generation. It can improve the quality and grade utilization of coal, improve the utilization efficiency of coal and increase the economic benefits.

 

2.    Technological process

The coal pyrolysis poly-generation technology is based on low quality coal as raw material, through pyrolysis, produce gas, coal tar, semi-coke, heat, electricity, chemical products, ash and slag comprehensive utilization, building materials.

Coal gas from coal pyrolysis can be made into LNG and syngas into other chemical products; the coal tar produced may be hydrotreated and hydrocracked to make oil or other chemicals; the semi-coke can be used as clean fuel or gasified to produce syngas to make other chemical products.

Coal pyrolysis gas separation can be used to produce syngas, mainly by pressurized cryogenic separation, and LNG, qualified syngas, can be obtained. The separation of high concentration of carbon dioxide can be returned to the pyrolysis furnace as a circulating gas, but also can be used for other purposes.


 The technology of Coal pyrolysis poly-generation

 


3.    Advantages of the Technology

(1)Coal pyrolysis poly-generation technology can make full use of coal resources;

(2)Compared with MTO process, mixed olefin is produced, which greatly improves the economy of coal chemical industry;

(3)Deep processing of coal tar and hydrogenation to prepare gasoline and diesel oil can alleviate the shortage of petroleum supply in China;

(3)Coal pyrolysis poly-generation technology can realize comprehensive utilization of coal resources, energy saving and emission reduction, and maximize economic benefits.

1.    Background

The characteristics of China's energy reserves are 'rich in coal, short of oil, short of gas'. Coal has a high position in the national energy strategy. China's coal resources are mainly medium and low grade coal. These coals are highly volatile and suitable for pyrolysis poly-generation. It can improve the quality and grade utilization of coal, improve the utilization efficiency of coal and increase the economic benefits.

 

2.    Technological process

The coal pyrolysis poly-generation technology is based on low quality coal as raw material, through pyrolysis, produce gas, coal tar, semi-coke, heat, electricity, chemical products, ash and slag comprehensive utilization, building materials.

Coal gas from coal pyrolysis can be made into LNG and syngas into other chemical products; the coal tar produced may be hydrotreated and hydrocracked to make oil or other chemicals; the semi-coke can be used as clean fuel or gasified to produce syngas to make other chemical products.

Coal pyrolysis gas separation can be used to produce syngas, mainly by pressurized cryogenic separation, and LNG, qualified syngas, can be obtained. The separation of high concentration of carbon dioxide can be returned to the pyrolysis furnace as a circulating gas, but also can be used for other purposes.


 The technology of Coal pyrolysis poly-generation

 


3.    Advantages of the Technology

(1)Coal pyrolysis poly-generation technology can make full use of coal resources;

(2)Compared with MTO process, mixed olefin is produced, which greatly improves the economy of coal chemical industry;

(3)Deep processing of coal tar and hydrogenation to prepare gasoline and diesel oil can alleviate the shortage of petroleum supply in China;

(3)Coal pyrolysis poly-generation technology can realize comprehensive utilization of coal resources, energy saving and emission reduction, and maximize economic benefits.

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