The high asphaltene conversion residue hydrogenation catalyst combination system jointly developed by the Sinopec Fushun Petrochemical Research Institute and Maoming Branch passed the technical appraisal organized by the Sinopec Science and Technology Development Department. This technology has obtained 20 Chinese invention patents. The catalyst combination system can effectively improve the surface properties of the catalyst by introducing additives and optimizing the manner of addition, thereby improving the apparent reaction activity of the catalyst and ensuring that the active metal content per unit volume of the catalyst is greatly reduced without reducing the catalytic performance of the catalyst. And the hydrogen consumption and energy consumption of the device production are particularly suitable for the residue hydrotreating process under conditions of higher volume airspeed. Functional three wheeled electric vehicles are widely used in various scenarios, meeting various usage needs without fear of any application challenges. Electric Sanitation Vehicle,Electric cleaning tricycle,Garbage removal vehicle,Quick cleaning vehicle Xuzhou Hengshang Mechanical and Electrical Co., Ltd. , https://www.hengsenergy.com