Let the coal gasification technology no longer "stuck the neck"-the development of a complete set of process technology and key equipment for the 3,000-ton dry pulverized coal pressurized gasification

Not long ago, the "4 million tons/year coal indirect liquefaction complete technology innovation development and industrialization" project completed by China Wuhuan Engineering Co.

China Wuhuan is mainly responsible for the development of a large-scale dry pulverized coal pressurized gasification process and key equipment, which is the most important common technology in the project-a complete set of process technology and key equipment for 3,000-ton dry pulverized coal pressurized gasification

Break the monopoly

Before 2013, foreign countries had always clamped down on China's large-scale dry coal gasification technology of more than 2,000 tons

China Fifth Ring and Shenhua Ningxia Coal Group focused on the problems exposed in the operation of domestic coal gasification equipment for technical research, and developed a large-scale pulverized coal pressurized gasification process technology and a 3000-ton single-burner top-mounted dry coal gasifier, which reduced The investment cost and operating cost have realized the long-term operation of the device

The technology has a wide range of coal types.

Four breakthroughs lead innovation

This technology has achieved major innovation breakthroughs in the following four aspects

One is the original creation of a closed-loop membrane water wall reaction chamber with high turbulence intensity and high degree of reaction, which makes the reaction chamber and the combined burner and the steady flow slag discharge system have high coupling efficiency, low ash-slag ratio and reliable operation

　　The second is based on the strong momentum conduction mechanism of the burner, revealing the dynamic mechanism of turbulent combustion in the overhead swirling gasification field, and revealing the law of intensified reaction of oxygen and pulverized coal

　　The third is to invent an advanced water-cooled cascade expansion and steady flow slag discharge system, which reduces the scattering and eddy currents that occur during the process of syngas and slag entering the quenching chamber from the combustion chamber

　　The fourth is to develop an intelligent control system to ensure safer and more stable operation of the device

　　Authoritative certification set output

　　In May 2018, the China Petroleum and Chemical Industry Federation organized experts to carry out on-site calibration of the "3000-ton dry coal pulverized coal pressurized gasification complete process technology and key equipment development"

　　On May 27, 2018, the China Petroleum and Chemical Industry Federation organized an appraisal committee composed of senior experts in China’s coal chemical industry, petroleum and chemical industry, including academician Xie Kechang of the Chinese Academy of Engineering, Gu Zongqin, president of the Petroleum and Chemical Industry Planning Institute, in Beijing.

　　In addition, "a kind of cyclone dry pulverized coal gasifier" won the 19th China Patent Gold Award, and passed the intellectual property evaluation of the American LD Intellectual Property Law Firm and exported to the United States

　　At present, large-scale dry pulverized coal pressurized gasification technology is applied in many fields at home and abroad, which has promoted the improvement of a number of domestic equipment manufacturing enterprises, and changed the status quo that China's large-scale coal chemical technology has been controlled by foreign companies for a long time.