Catalytic Hydroliquefaction of Sapropels
Chemistry and Technology of Fuels and Oils
, E-ISSN: 1573-8310
||hydroliquefaction, sapropel, bio-oil, alternative feedstock
Krivonos O. I.
Terekhova E. N.
Plaksin G. V.
Lavrenov A. V.
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 Fe 2 O 3 —Al 2 O 3 —SiO 2 , (Co/Mo)Al 2 O 3 , and (Fe/Ni)Al 2 O 3 catalysts is studied. The process conditions [(Co/Mo)Al 2 O 3 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 C 8 --C 29 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.