Cheyenne was a small, high conversion refinery located in Cheyenne, Wyoming in the US.
Refinery operations were stopped in 2020 and the site is being converted to a refined products terminal and renewable diesel plant.
The refinery was 100% owned and operated by HollyFrontier.
The refinery processed a mix of local light sweet and imported Canadian heavy sour crude oil.
Complexity: 9.4
Atmospheric distillation - 52 kbpd
Vacuum distillation - 28 kbpd
Coker - 15 kbpd - Retrofitted to Conoco technology
FCC - 14 kbpd
Reformer - 9 kbpd - Semiregen
Naphtha hydrotreater - 11 kbpd
Distillate hydrotreater - 19 kbpd
FCC gasoline hydrotreater - 10 kbpd
Alkylation - 4 kbpd - HF acid
Hydrogen production - 10 MMscfd
Asphalt plant - 16 kpd
Land - acres
1940 - Refinery built by Frontier Refining
1989 - Coker added (10 kbpd)
1991 - Wainoco acquires Frontier and changes name to Frontier Oil
2011 - Frontier merges with Holly to form HollyFrontier
2020 - HollyFrontier stopped refinery operations at the Cheyenne refinery and began converting it to a renewable diesel plant
2022 - Conversion to a 6kbpd renewable diesel plant complete by end of year. $175MM project.