Intelligent double-stage biogas desulfurization apparatus

Abstract

The invention relates to an intelligent double-stage biogas desulfurization apparatus which comprises a bioreactor. A built-in heat-exchange mechanism is arranged at the bottom of the inside of the bioreactor; a soft water defoaming spraying mechanism and a circulating liquid spraying mechanism are arranged on the upper portion of the bioreactor; a foam sensor is arranged above the liquid level of the inside of the bioreactor. The foam sensor is connected to a controller; the soft water defoaming spraying mechanism and the circulating liquid spraying mechanism are both controlled by the controller. A cell monitor is arranged on the outer side of the bioreactor; a monitoring probe connected with the cell monitor is disposed inside the bioreactor and touches the liquid level. Monitoring data of the cell monitor are transmitted to a computer through a developer. The intelligent double-stage biogas desulfurization apparatus has the advantages of achieving foaming pre-perception and intelligent defoaming of the bioreactor, lowering operation and maintenance cost for enterprises, improving intelligent monitoring level of systems, and the like.

Description

technical field [0001] The invention relates to a biogas intelligent two-stage desulfurization device. Background technique [0002] In the biogas desulfurization technology, there are dry desulfurization, wet desulfurization and biological desulfurization. There is also a double-alkali desulfurization method, that is, alkali method + biological method, for two-stage desulfurization. The principle is to contact the alkali solution with the biogas in the absorption tower. The process of absorbing hydrogen sulfide and turning it into rich liquid, which enters the bioreactor for biological treatment and then turns into lye (also called lean liquid) is recycled into the absorption tower. The main equipment of this method is absorption tower and bioreactor. [0003] Other acid gas CO influx in the aeration 2 (The bioreactor needs to supply oxygen to the biological system through aeration), ferrous sulfide particles produced by electrochemical corrosion, changes in the concentra...

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Problems solved by technology

[0005] 1. The bubbling problem of the bioreactor is unpredictable and there is no early warning. Once the whole reactor cannot continue to work, the operation and maintenance costs are high, and the bioreactor is shut down, resulting in an increase of 50% in operating costs;

[0006] 2. The growth of microbial flora inside the bioreactor cannot be judged. Without monitoring data, it is impossible to control the entire microbial system, and it is also impossible to understand the growth curve of the flora during operation, and it is impossible to achieve early warning and early control. Unable to achieve the purpose of energy saving and consumption reduction

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