4.4 Article

Desulfurization of liquid fuels by air assisted peracid oxidation system in the presence of Fe-ZSM-5 catalyst

Journal

KOREAN JOURNAL OF CHEMICAL ENGINEERING
Volume 33, Issue 9, Pages 2530-2537

Publisher

KOREAN INSTITUTE CHEMICAL ENGINEERS
DOI: 10.1007/s11814-016-0099-1

Keywords

Catalytic Oxidative Desulfurization; Ion Exchange; ZSM-5; Iron Catalyst; Air Oxidation

Funding

  1. HEC

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Catalytic oxidative desulfurization of the model oil or synthetic sulfur oil (SSO) and the different real/industrial industrial oil fractions was investigated using air assisted hydrogen peroxide and formic acid oxidation in the presence of Fe-ZSM-5 as catalyst. The reactivity of the different model sulfur compounds increased in the order of thiophene < dibenzothiophene (BT)< 4-methyl dibenzothiophene (4-MDBT). The desulfurization yield in case of the model oil was increased in the presence of Fe-ZSM-5 and the sulfur content of the model oil was reduced from 1275 to less than 50 ppm in 60 min at 60 A degrees C temperature. The catalyst also performed efficiently in ODS of real industrial oil fractions, i.e., untreated naphtha (UN), light gas oil (LGO), cooker derived combined heavy gas oil (HGO) and Athabasca oil sands derived bitumen (At. Bit.), and sulfur removal of 80, 78, 62 and 60% was attained, respectively. Kinetic investigation revealed that the ODS catalyzed by Fe-ZSM-5 followed the first-order kinetics.

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