Carbon deposition treatment device and method for dry distillation system

Abstract

The invention discloses a carbon deposition treatment device and method of a dry distillation system, which are used for removing carbon deposition of an oil shale dry distillation system, and the carbon deposition treatment device of the dry distillation system is structurally optimized on the basis of the original dry distillation system to form a combustion-supporting air system, a carbon deposition combustion system and a flue gas purification system which are connected in sequence. Combustion-supporting air at the first preset temperature is obtained through the combustion-supporting airsystem and fed into the carbon deposition combustion system to be subjected to carbon deposition combustion, smoke obtained through combustion is purified and discharged in the smoke purification system, system blockage can be effectively avoided by conducting combustion treatment on carbon deposition in the dry distillation system, the service life of equipment is prolonged. And the finally discharged substance is basically steam, so that the device has the characteristics of environmental protection, safety and short consumed time, and more importantly, the carbon deposition combustion adopts a sectional combustion mode, and the purposes of controllable combustion process, less temperature runaway and thorough charring can be achieved by dividing the carbon deposition combustion into a plurality of small-range spaces for sequential combustion.

Description

technical field [0001] The invention relates to the technical field of oil shale dry distillation, in particular to a device and method for treating carbon deposits in a dry distillation system. Background technique [0002] Oil shale reserves are relatively large in my country, coupled with the shale gas revolution in the United States, my country has great potential for development. At present, there are two mainstream methods of utilization: in-situ horizontal wells, vertical wells, high-pressure water fracturing, or low-temperature dry distillation. Low-temperature dry distillation refers to dry distillation of oil shale at low temperature (about 500°C) to produce shale oil. Carried out in a retort furnace. [0003] In the process of producing shale oil through retort furnace, technicians found that the existing retort technology has at least the following defects: During the low-temperature retort production process of oil shale, some hydrocarbons will be cracked and c...

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