A hydrothermal decomposition catalyst and a hydrothermal decomposition method using the catalyst

Abstract

The invention provides a hydropyrolysis catalyst for medium / low-temperature coal tar. The catalyst is an iron-sulfur serial waste desulfurizer obtained by employing an iron serial desulfurizer to perform desulphurization, and the content of the active composition in the iron serial desulfurizer is 65-100 wt%. By employing the hydropyrolysis catalyst for medium / low-temperature coal tar, preparation of the coal-tar hydropyrolysis catalyst is saved, the problems are solved that the preparation of the coal-tar hydropyrolysis catalyst is complicate in process, long in process and high in condition control requirements in the prior art, also the waste desulfurizer is effectively reasonably utilized, and the hydropyrolysis catalyst has the advantages of low catalysis cost, good catalytic effect and resource cycle utilization.

Description

technical field [0001] The invention relates to a hydrothermolysis catalyst and a hydrothermolysis method using the catalyst, in particular to a hydrothermolysis catalyst using the iron-based waste desulfurizer in the petroleum refining process as a medium-low temperature coal tar and using the hydrothermolysis catalyst The invention discloses a hydrogenation thermal decomposition method of a catalyst, which belongs to the field of coal chemical industry. Background technique [0002] Coal tar is a black or dark brown viscous liquid with a pungent odor. It is a liquid product produced during the pyrolysis of coal. It can be divided into high-temperature tar (1000°C) and medium-temperature tar ( 600~800℃) and low temperature tar (450~550℃). The relative density of low-temperature coal tar is small, and its composition includes alkanes, olefins and aromatics accounting for about 50%, phenols content up to 30%, and the rest are nitrogen-containing compounds, sulfur-containing ...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to solve the problem that the preparation of the coal tar hydrogenation reaction catalyst in the prior art requires the active components to be loaded on the porous carrier by the vacuum impregnation method, and the preparation process is complex, the process is long, and the condition control requirements are high. problem, and further provide a method of using iron-based waste desulfurizer as a catalyst for coal tar hydrogenation reaction and using the catalyst to carry out coal tar hydrogenation reaction