Heavy oil upgrading for the future

The Chevron RDS Hydrotreating Process and the Gulf Resid HDS Process were pioneers in this field, beginning with the startup of the first resid desulfurization unit in 1969. The merger of Chevron Corporation with Gulf Oil Corporation resulted in a versatile new RDS Hydrotreating technology which utilizes the best features of the original Chevron and Gulf processes. Continuing improvements in the catalyst and in process configuration have greatly increased the capability of combined Chevron RDS hydrotreating to provide deeper demetalation (HDM), denitrification (HDN), Ramscarbon removal (HDR), desulfurization (HDAS), and greater cracking conversion (HCR) while processing more difficult feedstocks. future. The process is detailed by the authors.