Ethanol-containing waste-gas treatment process flow

Abstract

The invention provides an ethanol-containing waste-gas treatment process flow, which adopts a recycling method to recycle and to utilize the organic matters in the waste gas so as to realize the reduction of the environmental pollutants, and adopts the technical scheme that: after the ethanol-containing waste gas enters a purification unit, the ethanol-containing waste gas is contacted with absorbent inside the purification unit, ethanol in the ethanol-containing waste gas is absorbed by the absorbent to form absorption solution, and the absorption solution is discharged from the purification unit, so the ethanol-containing waste gas is purified; the discharged absorption solution is purified and concentrated by a recycling unit so as to separate the ethanol and the absorbent, the separated absorbent is recycled after passing through a filtering unit, and the absorption efficiency of the purification unit during the absorption process is more than 99 percent. The ethanol-containing waste-gas treatment process flow has the advantages that the resource can be saved, can be popularized in the resource treatment process of the similar waste gas, and develops a new way for processing the waste gas which is produced during the chemical engineering and the pharmaceutical production process.

Description

technical field [0001] The invention relates to the technical field of chemical and chemical organic waste gas treatment, in particular to a process flow for treating ethanol-containing waste gas. Background technique [0002] With the rapid development of our country's national economy, the ecological environment we rely on for survival is undergoing severe tests. The rapid development of the contemporary chemical industry has provided society with various products, but also brought many negative impacts to society, such as resource problems and environmental problems. On the one hand, the unrestrained exploitation of resources and the massive discharge of pollutants have destroyed the ecological environment and seriously endangered people's normal life. On the other hand, the effective utilization of resources is low, resulting in a large waste of resources. my country promulgated and implemented the "Integrated Emission Standards of Air Pollutants" in 1997, which define...

AI Technical Summary

Problems solved by technology

The disadvantage of the adsorption method is that the moisture in the gas to be treated has a great influence on the adsorption capacity of the activated carbon layer.

When the relative humidity of the gas exceeds 50%, the adsorption capacity of activated carbon for organic matter will be greatly reduced, and the processing equipment is huge and the process is complicated. When there are colloidal substances or other impurities in the exhaust gas, the adsorbent is prone to failure.

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