Carbon deposition characteristics detection system and method of dry distillation gas

Abstract

The invention discloses a detection system and a detection method for carbon deposition properties of dry distillation methane gas. The detection system comprises dry distillation equipment, carbon deposition equipment and deposited carbon analysis equipment, wherein the dry distillation equipment is used for dryly distilling raw materials into semi-coke and dry distillation gas and converting the dry distillation gas into the dry distillation methane gas; then deposited carbon is formed in a reaction pipe of the carbon deposition equipment by the dry distillation methane gas; then the reaction pipe is cut and is put into the deposited carbon analysis equipment, so that the deposited carbon is heated, and further the deposited carbon is oxidized into carbon dioxide; then data of the carbon dioxide is acquired by the deposited carbon analysis equipment and data of the deposited carbon is generated correspondingly. A stable gas source exists in the detection process and data including a carbon deposition amount, a carbon deposition rate, deposited carbon types and the like can be obtained from the data of the carbon dioxide, so that the precision of a detection result is high and the detection system has very high practicability and can be used as an effective tool for detecting the dry distillation methane gas carbon deposition properties of different raw materials.

Description

technical field [0001] The invention belongs to the field of gas characteristic detection, and in particular relates to a system and method for detecting carbon deposition characteristics of dry distillation gas. Background technique [0002] The gas full-circulation oil shale dry distillation process uses two-stage heating technology to heat the circulating gas. During this process, carbon deposits will occur in the horizontal heat exchange pipes of the primary tube heat exchanger. Although there are relevant materials that say this The phenomenon has a lot to do with sulfur corrosion, but as long as the material of the heat exchanger pipes contains transition metal elements such as Fe, Co, Ni, etc., when the retort gas passes through, there will be carbon deposits. Carbon deposits are not independent carbon atoms, but are fused by several carbon atoms. When it is attached to the wall of the metal pipe, it will not only block the pipe and affect the heat transfer efficienc...

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Problems solved by technology

[0008] In view of this, the technical problem to be solved by the present invention is to provide a system and method for detecting the carbon deposition characteristics of retort gas, so as to solve the problem of cumbersome equipment in the existing detection system and method, the inability to provide a stable gas source and the easy detection of carbon atoms. Residues in the process will cause the composition of the test gas to be unstable, which will lead to problems such as high detection cost and low accuracy of detection results.

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