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Rice husks are pyrolyzed in a fluidized bed reactor and the vaporized bio-oils are continuously graded into lighter and heavier bio-oils by in-line fractional distillation. The selection of the operating fluidization velocity is systematically discussed and the influences of the gas fluidization velocity on the physical and chemical properties of the graded oils are initially investigated. At the...
The geothermal energy in depleted high temperature gas reservoirs can be developed using existing wells and surface facilities via recycling water or supercritical CO2 after natural gas production. For a typical medium-size gas field, the recoverable geothermal energy can be equivalent to over 10milliontons of standard coal. The injection of CO2 can improve the heat mining rate, and it can also enhance...
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