Solid-Acid Catalytic Conversion of Oil Shale: Effects of Sulfonic Acid Grafting on Oil Yield Enhancing and Quality Improvement.

ABSTRACT: Oil shale is a promising unconventional resource and in situ upgrading technology has been a practical approach for enhancing oil and gas recovery. Mineral-based clin/SBA-15 has been prepared and subsequently functionalized to get SO₃H-SBA-15 catalysts. Compared with the noncatalytic conversion of oil shale under subcritical water, sulfonic acid grafted catalysts have played a predominant role in enhancing the oil yield by 3-16% and improving oil qualities. The O/C atomic ratio was declined to 0.10-0.11, while the hydrocarbon yield was sharply increased to 47-60% from 34%. The energy recovery has been elevated to 75-82%, and the produced oil had a heating value of 35-37 MJ/kg. Compared with that without catalyst, the energy recovery rate is 34.55%, and the heating value is 23.61

SUBMITTER: Meng X 

PROVIDER: S-EPMC7931414 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature