Environmental regulations greatly limit what refiners can do with their spent acid and hiring external parties to take care of it is both costly and inefficient. Refiners also face the challenge of increasing octane numbers while keeping costs down. Sulfuric acid catalyzed alkylation is often part of the solution, but alkylation produces polluted spent acid that must be regenerated. The most optimal solution is an efficient and effective Spent Acid Regeneration solution.
Not all SAR units are alike. Conventional SAR units require scrubbing, washing, and drying processes to take impurities and water vapor out of the gas after incineration of the spent acid. These processes can be costly and time-consuming for refiners.
But with Topsoe SmartSARTM technology, you can regenerate spent acid without using a drying process. This is done using a hot gas filter, which takes out dust and impurities without cooling down the gas and wasting energy. The result is a better energy economy and no waste acid or wastewater.
SmartSAR™ is a cost-effective, and well-proven spent sulfuric acid regeneration technology that has been successfully applied to more than 20 alkylation units worldwide and a handful of other plants generating spent acid.
Brochure SmartSAR™ - regenerate spent acid with maximum energy recovery
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