Catalytic Hydroliquefaction of Sapropels
Chemistry and Technology of Fuels and Oils
, E-ISSN: 1573-8310
||hydroliquefaction, sapropel, bio-oil, alternative feedstock
Institute of Problems in Hydrocarbon Refining, Siberian BranchRussian Academy of SciencesNovosibirskRussia
Catalytic hydroliquefaction of sapropels differing in organic matter and heteroatom contents in the presence of Fe2O3—Al2O3—SiO2, (Co/Mo)Al2O3, and (Fe/Ni)Al2O3 catalysts is studied. The process conditions [(Co/Mo)Al2O3 catalyst, 450°C, reaction time 1 h, and partial H 2 pressure 6 MPa] that maximize the yield of liquid products (53%) and convert the most sapropel organic matter (74%) are determined. It is shown that liquid products of sapropel organic matter degradation contain essentially C8 --C29 saturated hydrocarbons and aromatic and naphthenic and oxygen- and nitrogenbearing compounds in much smaller quantities. A scheme is proposed for catalytic hydroliquefaction of sapropel organic matter.