Safe, efficient and convenient cyclic adsorption and desorption process and adsorption and desorption tower

Abstract

The invention discloses a safe, efficient and convenient cyclic adsorption and desorption process and an adsorption and desorption tower, and belongs to the technical field of oil gas recovery. The cyclic adsorption and desorption tower is simple in structure, a packed tower and an air heating tower can be selectively assembled and disassembled according to actual conditions and are convenient to assemble and disassemble, and a fixing plate and a fixing rod are both of a detachable structure; a coil pipe and a temperature thermocouple can be fixed and accurately positioned while mounting and dismounting are convenient, problems are found in time, the positions of the problems are positioned, and the maintenance cost is saved; the gas inlet flow, the pressure difference and the gas taking result are correlated and fed back to form a safety control system in the adsorption process of the packed tower, whether the flow speed of gas in the tower is normal or not can be judged through a differential pressure gauge, if the pressure difference is too large, whether the gas inlet flow is too large or an adsorbent layer is blocked or not can be judged by combining the gas inlet flow meter and the gas taking result, the blocking position can be determined, and corresponding adjustment is carried out, so that the adsorption process is accurately controlled, and safety accidents are avoided.

Description

technical field [0001] The invention belongs to the technical field of oil gas recovery, and in particular relates to a safe, efficient and convenient cyclic adsorption-desorption process and an adsorption-desorption tower. Background technique [0002] In oil and gas recovery technology, adsorption towers are often used for oil and gas adsorption and recovery, and then the adsorbed adsorbent is desorbed to achieve oil and gas reuse. However, the traditional adsorption towers are all one-piece structures, and most of them directly fix the welding support frame inside the tower body to place the packing layer, which is not conducive to the input of packing materials in the early stage, and is also not conducive to the disassembly and cleaning in the later stage. Moreover, the desorption method is single and the operation is cumbersome. The efficiency is low, and the regeneration efficiency of the adsorbent after desorption is low, which seriously affects the adsorption life o...

AI Technical Summary

Problems solved by technology

However, the traditional adsorption towers are all one-piece structures, and most of them directly fix the welding support frame inside the tower body to place the packing layer, which is not conducive to the input of packing materials in the early stage, and is also not conducive to the disassembly and cleaning in the later stage. Moreover, the desorption method is single and the operation is cumbersome. The efficiency is low, and the regeneration efficiency of the adsorbent after desorption is low, which seriously affects the adsorption life of activated carbon and other adsorbents, causing a lot of waste of resources

[0003] In addition, most of the existing adsorption towers judge the condition of the adsorption packing through the detection of the exhaust gas during the adsorption process, but they do not carry out precise checks and controls on the entire adsorption process. The circulation of oil and gas and the state of the packing are relatively independent. The operation cannot form a unified whole, and there is no mutual restriction and feedback function. The adsorption time, desorption time, replacement cycle and oil and gas flow of the filler are mostly set separately according to engineering experience. This method is very unscientific and makes the adsorption tower. There are many uncertainties in the use, which can easily lead to unsatisfactory adsorption effects and tower safety issues

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