Primary separation tower for carbon disulphide preparation process

Abstract

The invention relates to a separation device, specifically a preliminary separation tower used in the production process of carbon disulfide, which solves the problem that the existing preliminary separation devices in the production process of carbon disulfide are independent of each other, occupy a large space, have many leakage points, and are not easy to maintain and repair, etc. Defects include the tower body. There are three layers of grid plates in the tower body, each layer of grid plate is equipped with a packing layer, each packing layer is equipped with a feed liquid inlet, and the lower part of the tower body is equipped with a mixed feed liquid inlet. The present invention adopts a structured packing tower, which improves the separation effect, and changes the separation equipment formed by connecting the existing vapor-liquid separator, sulfur trap, separation tower and condenser into a preliminary separation tower, which not only occupies Small size, few connecting pipelines, reduced number of pressure vessel equipment, reduced risk factor, increased operational flexibility, easy repair and maintenance, reduced equipment investment, reduced pressure vessel equipment maintenance costs, and lowered costs.

Description

technical field [0001] The invention relates to a separation device, in particular to a primary separation tower used in the production process of carbon disulfide. Background technique [0002] During the preparation of carbon disulfide, the gas-liquid mixture generated by the reaction of natural gas and sulfur includes unreacted sulfur, methane, and generated carbon disulfide and hydrogen sulfide. In order to obtain high-purity finished carbon disulfide, a series of separation steps must be carried out. At present, most processes use the following separation equipment: including vapor-liquid separators, sulfur traps, separation towers, and tube condensers. The device will be blocked after long-term use, and the three devices are connected by many pipelines and valves during use, which not only takes up a lot of space, but also has complicated connecting pipelines, many valves, and many leakage points. It is not easy to maintain and overhaul. More importantly, in the proce...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a preliminary separation tower for the carbon disulfide production process in order to solve the defects that the existing preliminary separation equipment in the carbon disulfide preparation process is independent of each other, takes up a large space, has many leakage points, and is not easy to maintain and overhaul.

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