MOSCOW (MRC) -- Northern California regulators directed two of the state's largest oil refineries to slash their fine particulate air pollution, which will require costly modifications at the plants, reporte Reuters.
The 19-3 vote by the Bay Area Air Quality Management District governing board means refineries in the area, including Chevron Corp's Richmond plant and PBF Energy Inc's Martinez refinery, will have to install wet gas scrubbers to reduce pollution spewed by their gasoline-making fluid catalytic cracking units (FCCU) within five years.
The new requirement is expected to cut PBF and Chevron’s particulate matter emissions from its cat crackers by about 70%, the air quality district estimates.
Refineries emit heavy amounts of pollution as crude oil is processed into fuel, and small particulate matter - consisting of solid or liquid airborne particles - is among the most harmful pollutants. Prolonged exposure is known to lead to respiratory, pulmonary and cognitive health problems. FCCUs, which turn heavier crude oil into lighter petroleum products including gasoline, are among the largest polluters of fine particulate matter in the San Francisco Bay-area.
Under the amended rule, refineries with FCCUs must limit annual emissions of particulate matter to 0.01 grain per dry standard cubic foot within the next five years. Chevron and PBF, the refiners expected to be most affected by the rule change, urged regulators to consider a less stringent 0.02 limit by 2023. Valero Energy Corp's Benicia refinery already has a wet gas scrubber.
Refiners and their advocates, including several refinery labor unions, said upgrading the FCCUs would cost hundreds of millions of dollars, lead to refinery layoffs and put pressure on the plants to shut down. Running the wet gas scrubbers would also require excessive water use in an already parched area, they argued.
As MRC reported previously, Chevron Corp is considering permanently closing the gasoline-producing fluidic catalytic cracker (FCC) at its 112,229 barrel-per-day (bpd) Pasadena, Texas refinery as part of a possible reconfiguration of the plant. Idling the shut 52,000-bpd FCC would be part of converting the refinery on the Houston Ship Channel to a simpler hydroskimming configuration.
Ethylene and propylene are the main feedstocks for the production of polyethylene (PE) and polypropylene (PP), respectively.
According to MRC's ScanPlast report, Russia's estimated PE consumption totalled 953,400 tonnes in the first five months of 2021, which virtually corresponded to the same figure a year earlier. High denisty polyethylene (HDPE) shipments decreased. At the same time, PP shipments to the Russian market were 607,8900 tonnes in January-May 2021, up by 33% year on year. Shipments of homopolymer PP and PP block copolymers increased, whereas deliveries of PP random copolymers decreased.
cheChevron is one of the world’s leading integrated energy companies. Chevron produces crude oil and natural gas; manufactures transportation fuels, lubricants, petrochemicals and additives; and develops technologies that enhance our business and the industry.
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