Petroleum Processing and Petrochemicals ›› 2014, Vol. 45 ›› Issue (5): 77-82.

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OPERATION ANALYSIS OF 3.9 Mt/a RESIDUE HYDROTREATING UNIT

  

  • Received:2013-10-28 Revised:2013-11-28 Online:2014-05-12 Published:2014-04-22

Abstract: The calibration results,daily operation data, unit energy consumption,and the problems in operation of 3.9 Mt/a residue hydrotreating unit with RHT series catalysts in Shanghai petrochemical Co. LTD. was introduced. Industrial operation shows that RHT series catalysts have higher HDS, HDCCR, and HDM activity as well as lower deactivation rate and can provide RFCC feedstocks with low sulfur, low carbon and low metal under the reaction conditions of 15.5 MPa in cold high pressure separator and space velocity 0.2 h-1. The mid-term calibration results show that the average removal rates of HDS, HDCCR, and HDM are 89.82%, 65.01%, 86.39% respectively. The unit runs smoothly with lower reaction temperature, less radical temperature difference and pressure drop rising and can meet the requirements for long term operation. The problem is that the two series of residue hydrotreating reactor system cannot reach the ideal hydrogen to oil ratio due to the difficulties to adjust revolutions of circulating hydrogen compressor, which may become the bottleneck for full capacity operation at the end-of-run. Key Words:residue hydrotreating; catalyst; industrial calibration; application

Key words: residue hydrotreating, catalyst, industrial calibration , energy consumption