Reforming raw material control indicators
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Our company has built a new major reformer, which is a continuous reformer of UOP Corporation in the United States. During the start-up process, raw materials were transferred from two branch plants. During the start-up process, the temperature of the pre-hydrogenation reactor rose very sharply. The company required an analysis of the naphtha, and 18 indicators were set. The branch plant was very tired. Our plant controlled the dry point to be 180 degrees, but they required 170 degrees. Do continuous reforming and fixed bed have different raw material requirements? And it has been running very smoothly in our factory for nearly ten years. Could you please share your respective control indicators?
The temperature increase in the prehydrogenation reactor may be due to the high sulfur and nitrogen contents of the raw materials and excessive exothermic reactions. If the production of high-octane gasoline is the goal, the dry point can generally be controlled to 180
It is recommended that you analyze the olefins and dienes of the pre-hydrogenated feedstock to see if the olefin saturation reaction caused by excessive olefin content causes the bed temperature to rise too high. Generally speaking, when the composition of the feedstock is stable, desulfurization and denitrification will not cause too high a temperature rise. If you cannot determine the cause, it is best to ask the catalyst manufacturer.