Estimation of U.S. refinery water consumption and allocation to refinery products. (1st June 2018)

• Record Type: Journal Article
• Authors: Sun, Pingping; Elgowainy, Amgad; Wang, Michael; Han, Jeongwoo; Henderson, Robert J.
• Is Part Of: Fuel. Volume 221(2018)
• Page Start: 542
• Page End: 557
• Publication Date: 2018-06-01
• Subjects: Bcm billion cubic meter -- CEC California Energy Commission -- API gravity American Petroleum Institution gravity -- LtCoking light coking configuration -- WWTP waste water treatment plants -- SGP saturates gas plant -- UnSGP unsaturated gas plant -- CW cooling water -- NHT naphtha hydrotreating -- BenSat benzene saturation -- GOHT gas oil hydrotreating -- Amine Regen Amine Regeneration -- Demin plant demineralization plant -- MLB thousands of pounds -- LPG liquefied petroleum gas -- GHG greenhouse gas -- MMscf million standard cubic feet -- LP Linear Programming -- PADD Petroleum Administration for Defense District -- Crk cracking configuration -- HvyCoking heavy coking configuration -- CDU Crude distillation unit -- FCC fluidized catalytic cracking -- BPSD barrel per calendar day -- VDU Vacuum distillation unit -- Isom Isomerization -- DHT diesel hydrotreating -- SMR steam methane reforming -- SW stripper sour water stripper -- SCFD standard cubic feet per day -- BFW boiler feed water -- LHV low heating value -- GREET The Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation Model; Refinery -- Water -- Consumption -- Configuration -- Allocation -- Products; Fuel -- Periodicals; Coal -- Periodicals; Coal; Fuel; Periodicals; 662.6
• DOI: 10.1016/j.fuel.2017.07.089
• Languages: English
• ISSNs: 0016-2361

Abstract

Abstract: Increasing stress on the global water supply necessitates the measurement of water consumption as a sustainability metric to evaluate energy production, including the production of transportation fuels (gasoline, diesel, jet fuel) at petroleum refineries. This study estimated refinery water consumption for petroleum fuels by considering three typical refinery configurations (cracking, light coking, and heavy coking) that process different crude qualities (e.g., American Petroleum Institute Gravity (API) gravity and sulfur content). The results showed that refinery water consumption was 0.34, 0.44, and 0.47 bbl water/bbl crude (L water/L crude) for cracking, light coking, and heavy coking configurations, respectively. The water consumption for a specific refinery product was estimated using an energy allocation approach at the process unit level. The results indicated that gasoline production consumes the largest amount of water, 0.60–0.71 gal water/gal gasoline (0.60–0.71 L water/L gasoline), due to the energy-intensive (and thus water-intensive) processing of gasoline components (mainly sourced from alkylation, reformer, and fluid catalytic cracking units). In contrast, jet fuel production consumes the least water, 0.09 gal water/gal jet fuel, for all three refinery configurations, because it is sourced directly from the crude distillation unit with minimal post-treating. The consumption of diesel is most sensitive to refinery configuration with 0.20, 0.30, and 0.40 gal water/gal diesel (L water/L diesel) for cracking, light coking and heavy coking configurations, respectively. This is mainly because as configuration complexity increases to process heavier and sourer crudes, a sizable burden of hydrogen production from steam methane reforming unit is allocated to diesel fuel production (including diesel sulfur removal). The trend of water consumption associated with these refinery products is consistent with the energy consumption for their production.