COMPANY TECHNOLOGY APPLICATIONS CONTACT FlexULS SULFUR POLISHING SULFUR POLISHING FOR LIGHT FEEDS Reduce sulfur and nitrogen content in distillates and crudes to ultra-low levels, without hydrogen Auterra’s FlexULS is a novel adsorption-based process that effectively treats any crude oil, distillate, or petrochemical stream containing sulfur levels below 1,000 ppm. Treated streams see sulfur reduction down to less than 10 ppm and a 25-60% reduction in nitrogen, with no saturation or oxidation of the stream. LESS THAN 10 ppm ppm SULFUR AFTER TREATMENT UP TO 60% ppm NITROGEN REDUCTION DEPENDING ON FEED UP TO 70% ppm REDUCTION IN GHG EMISSIONS FlexULS is a scalable, cost-effective desulfurization alternative for producing in-spec fuels The FlexULS design includes fixed bed reactors with our proprietary adsorbent that separates impurities at ambient temperature, with no hydrogen required, and no induced pressure needed. The small physical footprint and low capital costs of FlexULS units make it an ideal solution for producers needing to meet ultra-low sulfur performance levels. FLEXIBLE STREAM TREATMENT Meet demanding ultra-low sulfur fuel specs with FlexULS Improve assay quality and reduce discounting by polishing feedstocks. Remove impurities without reliance on expensive, energy-intensive hydroprocessing Leaves streams intact The FlexULS process doesn’t saturate or oxygenate the hydrocarbon stream Low process energy Room-temperature oxidation reactions remove impurities without hydrogen or pressure Small physical footprint FlexULS can perform where hydroprocessing units would be too large or expensive Low capital costs Tailored regeneration solvents and just-in-time replenishment keeps capital costs low KEY APPLICATION: PIPELINE TRANSMIX Auterra’s FlexULS technology is ideal for small volumes of feedstock, like pipeline transmix, to be effectively polished to improve out-of-spec sulfur levels. SEE MORE APPLICATIONS RESOURCES Privacy Policy Accessibility Statement A CLEANER, GREENER OIL TREATMENT Auterra develops projects and licenses Flex desulfurization technology as a low-cost, low-carbon treatment option to reduce sulfur and impurities in fuels and oil feedstocks. AUTERRA, INC. 2135 Technology Drive Schenectady, New York USA Phone: (+01) 518-382-9600 Copyright 2021 | by Auterra, Inc. | All Rights Reserved