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. Welding Line Constant Force Actuator Our Welding Line Force Control System, Welding Line Constant Force Actuator, Welding Line active contact flange have many advantages over other grinders. It can realize flexible grinding, quick repsond to surface changing, and instant adjusting. Traditional mechanic hand lacks flexibility, and it is not easy to adjust, hard to realize mass production. Welding Line Constant Force Actuator, Welding Line active contact flange, Welding Line force control system DARU Technology (Suzhou) Co., Ltd. , https://www.szforcecontrolsystem.com