The above three points are the conventional factors affecting the reaction speed, the so-called catalytic hydrogenation reaction is too slow generally refers to the problem of slow reaction even after adjusting the above factors to the near limit, which is the focus of this problem. At these times, it is already difficult to solve the problem by theoretical inference alone, and the main influencing factors are summarized through experiments, including

The most common problem in hydrogenation catalysis is that the reaction is slow, or even stops, and the catalyst must be filtered out and the filtrate replenished with new catalyst to continue the reaction.

This company developed FCC feedstock hydrotreating catalyst (grade KF-907) for the production of clean gasoline meeting Tier III standards. The Ni-Co-Mo trimetallic type pretreatment process for FCC feedstock has been designed for high HDS activity and stability during operation, and is stable under high and low pressure conditions. The catalyst has been used in seven industrial units in the US and Japan.