Pascagoula is a very large, high conversion refinery located on the Gulf of Mexico outside of Pascagoula, Mississippi in the US.
The refinery is 100% owned and operated by Chevron.
The refinery processes imported heavy sour crude oil, primarily from Latin America.
Products are distributed to the local market and up the Plantation Pipeline.
Complexity: 13.9
Atmospheric distillation - 375 kbpd - CDU 1 and CDU 2
Vacuum distillation - 330 kbpd
Coker - 105 kbpd - Three trains (DC A-C) - Foster Wheeler, 6 drums, 27 ft diameter drums
FCC - 88 kbpd - two units
Hydrocracker - 119 kbpd - Two units: Chevron Isocracker
Reformer - 62 kbpd - Continuous CCR - UOP platformer
Reformer - 40 kbpd - Semiregen
Naphtha hydrotreater - 61 kbpd
Kerosene hydrotreater - 34 kbpd
Distillate hydrotreater - 36 kbpd
VGO hydrotreater - 154 kbpd
Alkylation - 22 kbpd
Aromatics extraction - 21 kbpd
Hydrogen production - 230 MMscfd
Base oil plant - 25 kpd
Pet coke - 36 kbpd
Sulfur plant - 1264 t/d
Land - 3000 acres
Four marine terminals with 7 berths
200 tanks, with 600MM ga capacity
1963 - Built by Standard Oil of Kentucky (subsidiary of Standard Oil of California). Included crude unit (100 kbpd) , FCC, hydrocracker, reformer, alkylation, and hydrogen plant. $103 MM
1966 - Added paraxylene unit and ammonia plant (later closed). $54MM
1968 - Expansion to double capacity with new crude unit, hydrocracker, reformer, hydrogen plant, and sulfur plant. $91MM
1974 - $96MM project adding new reformer, replacing sulfur plant with two new ones, adding VGO hydrotreater, naphtha splitter, and flexible hydrotreater.
1977 - Company changed name to Chevron
1983 - Major deep conversion project ($1.3B) adding a Coker added (71 kbpd), second alkylation and hydrogen plants, two sulfur tail gas units, coker, hydrodenitrification unit, and converted VGO hydrotreater to diesel hydrotreater.
1992 - Addition of Aromatics unit ($200MM)
1996 - $240MM project to expand paraxylene and ethylbenzene
2001 - Merged with Texaco to form Chevron Texaco
2003 - $150 million expansion Clean Fuels Project, added a new low-pressure vacuum column at the Crude I Unit and modified the Crude II Unit and the VDU (Vacuum Distillation Unit) to provide heavier feed to the Coker Unit; replaced six petroleum coke drums with larger capacity drums and replaced the wet-gas compressor at the Coker Unit; reconfigured the Coker HDN (Hydrodenitrification) Unit), that previously treated FCC feed, to a diesel treating plant; and reconfigured the RDS Unit, which previously provided feed to the Coker Unit, to pre-treat feed going to the FCC Unit. Additional modifications were made to support facilities such as new feed pumps and conveyor modifications at the Blending and Shipping Areas, and compressor modifications at the Water Treating Plant.
2005 - Changed name to Chevron
2006 - $150MM additional FCC
2010 - Replaced existing reformers with new CCR (platformer)
2013 - Added base oil plant (25 kbpd) and two new berths at the Chevron wharf, 16 new product tanks, new railcar capabilities. $1.4B project.