Catching and refining device of carbon dioxide gas

Abstract

The invention discloses a catching and refining device of a carbon dioxide gas, which is composed of a blower, a compressor, an enrichment system, a desulphurization system, a de-hydrocarbon system, a purification system, a refrigeration system, a rectification system and a product system. The front end of the enrichment system is connected with the blower while the rear end thereof is connected with the desulphurization system; the rear end of the desulphurization system is connected with the de-hydrocarbon system; the rear end of the de-hydrocarbon system is connected with the purification system; the rear end of the purification system is connected with the refrigeration system; the rear end of the refrigeration system is connected with the rectification system; and the rear end of therectification system is connected with the product system. Raw gas containing carbon dioxide is led to the enrichment system through the blower, then pressurized by the compressor and then enters into a desulphurizer and a de-hydrocarbon device for desulphurization and de-hydrocarbon; the purified carbon dioxide then enters in the refrigeration system; then the purified carbon dioxide after beingliquefied enters into the rectification system and sent to a food-level carbon dioxide storage tank for storage. The liquid carbon dioxide products can be en-trucked or bottled for sale and also can be further made into solid dry ice through a dry ice machine.

Description

technical field [0001] The carbon dioxide gas capturing and refining device of the present invention relates to chemical production equipment, in particular to a production and manufacturing equipment of food-grade liquid carbon dioxide and dry ice. Background technique [0002] At present, carbon dioxide is a very valuable carbon resource that can be widely used in various fields. Chemical synthesis industry, mechanical protection welding, metal casting processing, agricultural fertilization, fruit and vegetable preservation, beer and beverage filling, oil exploitation, fire fighting, medical and health industries all need carbon dioxide. And my country's carbon dioxide gas sources are very rich: hydrogen production and ethylene glycol production in organic chemical plants, shift gas and synthetic ammonia production in inorganic chemical plants, grain fermentation and wine making, decomposition of calcium, magnesium and other ores, carbonization of boron ore powder, oil fie...

AI Technical Summary

Problems solved by technology

[0003] In view of the problems existing in the above-mentioned prior art, the purpose of the present invention is to study and design a novel carbon dioxide gas capture and refining device, thereby solving the problem that the original method for producing carbon dioxide is relatively simple, and most of them are only aimed at a certain impurity The components are eliminated, and the products produced contain more impurities and are not particularly pure, especially for carbon dioxide products used in the food industry, which have strict requirements and are difficult to manufacture.

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