Coal slurry heating reaction device

Abstract

Belonging to the field of coal chemical industry, the invention discloses a coal slurry heating reaction device, which comprises a coal slurry vertical heating furnace, a liquid separator, a gas-liquid tank, a PSA gas separation device, a CO compressor, a water pump and a pulverized coal and heavy oil stirring coal slurry container. An inlet of the vertical coal slurry heating furnace is respectively connected with a CO compressor, a water pump and a pulverized coal and heavy oil stirring coal slurry container; the CO compressor is used for providing CO raw materials, and the water pump is used for providing water vapor, pulverized coal and heavy oil stirring coal slurry container for coal slurry raw materials; a vertical heating flow pipe is arranged in the vertical coal slurry heating furnace; an inlet of the liquid separator is connected with an outlet of the vertical coal slurry heating furnace, and CH1 in a product enters the gas-liquid tank; a gas outlet is formed in the top of the gas-liquid tank and is used for discharging CO and CO2 into the PSA gas separation device; and the PSA gas separation device is connected with the CO compressor and is used for circulating CO into the CO compressor. The problems of gas, liquid and solid layering and coking of coal slurry in the heating furnace pipe are solved.

Description

technical field [0001] The invention relates to the field of coal chemical industry, in particular to a coal slurry heating reaction device. Background technique [0002] my country is rich in coal resources but short in petroleum resources. In order to ensure national energy security, coal is transformed into liquid base oil, which is called artificial petroleum. Coal-to-oil has become an important trend in my country's energy strategy. The academic title of "coal-to-oil" is coal liquefaction, that is, coal is used as raw material to generate a liquid state through a series of hydrogenation reactions under a certain temperature and pressure environment and the action of a catalyst. Oil (Aromatics / Alkanes) conversion process. The overall coal slurry hydrogenation process is relatively harsh, high temperature, high pressure, and the process medium is coal powder, catalyst, and solvent in proportion to form a coal slurry. There are solid particles of coal powder and solid Fes ...

AI Technical Summary

Problems solved by technology

The coal slurry heating furnace is the key equipment for man-made petroleum, and its long-term operation is particularly important. However, the particularity of the process medium (the heating medium of the coal slurry heating furnace is coal powder and solvent formulated into coal slurry in proportion) causes it to generate gas-liquid- Solidification and coking are common problems in the coal slurry heating reaction furnace. Coking of coal slurry causes the heating furnace tube to be blocked and scrapped

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