A polygeneration comprehensive utilization system and technology of oil shale associated substances

Abstract

The present invention discloses an oil shale and biomass poly-generation comprehensive utilization system, which comprises a material bin, a dry distillation furnace, an oil tank, an oil-gas separation device, a gas purification device, a high-temperature gas heating furnace, a gas storage tank, a gas burner, a low-temperature gas heating furnace, a gas turbine, a heat exchanger, a fuel cylinder, a steam turbine, a circulating fluidized bed boiler and a material feeder, wherein an oil shale and biomass mixture is used to be subjected to dry distillation. The present invention further discloses a process, wherein combustible gas is divided into three parts through the gas storage tank, the first part is adopted as the gas heat carrier of the dry distillation furnace, the second part is adopted as the fuel so as to be burned in the gas burner and the generated high-temperature flue gas is used for heating the gas heat carrier in the high-temperature gas heating furnace, and the third part is conveyed into the gas turbine so as to be burned and the generated high-temperature flue gas enters the low-temperature gas heating furnace after the work so as to heat the gas heat carrier. According to the present invention, the oil shale and the biomass are subjected to mixed dry distillation, such that the yield of the combustible gas is improved, and the purposes of heat supply, mass transfer and the heat carrying of the combustible gas burning are achieved.

Description

technical field [0001] The invention belongs to the technical field of utilization of oil shale resources, and in particular relates to a polygeneration comprehensive utilization system and technology of oil shale associated substances. Background technique [0002] Oil shale is an important unconventional oil and gas resource with huge reserves. After pyrolysis in a retort device at 400-600 °C, shale oil with properties similar to natural oil can be obtained. In the era of tight crude oil supply in the world, it has been As a very important petroleum supplementary energy. At present, the world's proven shale oil reserves are more than 400 billion tons (calculated based on in-situ reserves of oil shale), far higher than the world's proven recoverable reserves of crude oil. my country is a country with large reserves of oil shale resources. The proven reserves of oil shale resources are 719.937 billion tons, and the reserves converted into shale oil are 47.644 billion tons. ...

AI Technical Summary

Problems solved by technology

[0005] In order to increase the output of combustible gas in the oil shale carbonization process and solve the material transfer problem of solid heat carrier, the purpose of this invention is to provide a polygeneration comprehensive utilization system and its technology

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