Column structure for performance evaluation of natural gas mercury removal agent

Abstract

The invention discloses a tower column structure for natural gas mercury remover performance evaluation. The tower column structure comprises multiple adsorption tubes connected in series, wherein each adsorption tube is a cylindrical tube body with flanges at two ends, each tube body is filled with a to-be-evaluated mercury remover, and a screen and an annular gasket are arranged on each of orifices at the two ends of each tube body; the head end of the first adsorption tube is provided with a first helical casing and fixedly connected with an air inlet connector; the tail end of the last adsorption tube is provided with a second helical casing and fixedly connected with an air outlet connector; every two adjacent adsorption tubes are connected through a coupling component; each couplingcomponent comprises third helical casings arranged on the corresponding opposite flanges respectively in a sleeving mode and a cylindrical coupling body connected between the corresponding opposite flanges in an abutting mode; a through hole communicated with the adjacent adsorption tubes is axially formed in each coupling body; and a communicating hole communicated with the corresponding throughhole is formed in the side wall of each coupling body, and a sampling valve is connected to the outer end of each communicating hole. The tower column structure has the advantages that tower column length is adjustable, the length of a mass transfer zone can be detected, and mercury removal depth and the mercury volume of the mercury remover can be conveniently detected.

Description

technical field [0001] The invention relates to the fields of research and development of a natural gas mercury removal agent and oil and gas ground engineering, and in particular relates to a column structure used for performance evaluation of a natural gas mercury removal agent. Background technique [0002] Mercury is a common trace heavy metal element in natural gas. Mercury is not only toxic but also corrosive. The presence of mercury poses a potential safety threat to gas field production. In order to eliminate the hidden danger of mercury, it is necessary to remove mercury from natural gas containing mercury. [0003] At present, the adsorption tubes for the evaluation of mercury removal agents researched at home and abroad are mainly used to evaluate mercury removal agents in flue gas, and the length of the mass transfer zone cannot be detected during use, and it is difficult to detect the mercury removal depth and mercury capacity of mercury removal agents. The cur...

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Problems solved by technology

[0003] At present, the adsorption tubes for the evaluation of mercury removal agents researched at home and abroad are mainly used to evaluate flue gas mercury removal agents, and the length of the mass transfer zone cannot be detected when used, and it is difficult to detect the mercury removal depth and the mercury capacity of the mercury removal agent.

The current adsorption tube usually needs to manually punch holes in the side wall to collect the intermediate sample gas for detection. This sampling method will not only cause air flow disturbance in the adsorption tube, but also cause the adsorbent to block the sampling port.

The adsorption tubes currently researched at home and abroad are usually of a single-section structure, which is not conducive to disassembly or collocation between different experiments.

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