Method and device for destructive distillation of oil shale

The present invention discloses a method of retorting oil shale and coal chemical art means employed riser - fluidized bed retorting composite technology to produce shale oil. With charcoal pyrolysis reactor disposed in parallel, shale ash from high-temperature charcoal filter into the riser and the bottom of the reactor through the feed tube into the riser reactor along with the oil shale feed riser reactor pass from mixing up and retorting the heat, and then into the pyrolysis reactor to continue the pyrolysis reaction. The present invention has a high rate of oil, pyrolysis temperature stability; charcoal filter tube - compound-charcoal charcoal charcoal ability and large, is easy to control the temperature of charcoal, charcoal char fully, high heat recovery advantages, and the continuous and stable operation of the device, flexible adjustment.