期刊
CATALYSIS IN INDUSTRY
卷 10, 期 2, 页码 91-96出版社
MAIK NAUKA-INTERPERIODICA
DOI: 10.1134/S207005041802006X
关键词
rock matrices; oil production stimulation; high-viscosity oil; asphaltenes; hydrocracking; decomposition of ammonium nitrate; in situ catalytic processes
资金
- Russian Scientific Foundation [15-13-00057]
- Russian Science Foundation [15-13-00057] Funding Source: Russian Science Foundation
The properties of catalytic systems based on iron oxide and inorganic matrices of oil-bearing rocks (basalt, clay, sandstone) in the decomposition of ammonium nitrate, oxidation of methane, and hydrocracking of asphaltenes were studied. The catalytic systems were iron oxide (hematite with a particle size of D = 11.0 20 nm, preparation temperature 453 473 K) fixed on matrices during co-hydrolysis of carbamide and iron chloride under hydrothermal conditions at temperatures of T = 433-473 K and pressures of 0.6-1.6 MPa. The iron oxide catalysts based on basalt and clay were most active in deep oxidation of methane (at 773 K, X-CH4 = 83% and 72.9%, respectively); the Fe2O3/basalt and Fe2O3/sandstone systems were more active in the decomposition of ammonium nitrate. In hydrocracking of asphaltenes to maltenes, the catalyst activity decreased in the series Fe2O3/basalt > Fe2O3/clay > Fe2O3/sandstone, the iron oxide catalysts on clay being most selective. The obtained experimental data confirm that natural materials (oil-bearing rocks: basalt, clay, and sandstone) may be used for the development of catalytic systems for reactions in oil beds and of advanced technologies for increasing the oil recovery.
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