发明名称 Antioxidant additive composition, a solution thereof, and a method for improving the storage stability of biodiesel fuel (variants)
摘要 This invention relates to the petrochemical industry, in particular, to a method for improving the storage stability of biodiesel fuel via using an antioxidant additive. A method for improving the storage stability of biodiesel fuel, comprising addition of an alkylphenol-based antioxidant additive via providing an initial solution that contains 6 to 48 mass % of the alkylphenol-based composition comprised of, mass %: 2,6-di- tert -butyl-4-methylcyclohexanone - 0.2 - 0.3; 2,6-di- tert -butylphenol - 0,7 - 6.0; 2- sec -6- tert- butyl- p-cresol- 1.5 - 5.0; 4,6-di- tert -butyl- o -cresol - 3.0 - 8.0; 2,4-di- tert -butylphenol - 0.3 - 0.5; 2,4-di- tert -butyl-6-dimethylminomethylphenol- 2.0 - 5.0; 4,4-methylene-bis(2,6-di- tert -butylphenol) - 0.1 - 0.3; and 2,6-di- tert -butyl-4-methylphenol - to the balance, dissolved in biodiesel fuel; and adding the solution of the composition to the biodiesel fuel to reach a concentration of the composition of from 0.002 to 1.6 mass % based on the entire biodiesel fuel solution. The technical result consists of a considerable improvement of the storage stability of biodiesel fuel with a reduced amount of the antioxidant additive. The antioxidant additive used inhibits precipitation during the shelf life of biodiesel fuel for a longer period of time.
申请公布号 EP2500402(A1) 申请公布日期 2012.09.19
申请号 EP20110176692 申请日期 2011.08.05
申请人 OTKRYTOE AKTSIONERNOE OBSCHESTVO "STERLITAMAXKY NEFTEKHIMICHESKY ZADOV" 发明人 SALAVATOVA, ROZA MINIZIEVNA;NIYAZOV, NIKOLAI ARKADIEVICH
分类号 C10L1/14 主分类号 C10L1/14
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