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System and method for recycling gas containing carbon dioxide

A carbon dioxide and liquefied carbon dioxide technology, applied in the field of gas systems, can solve the problems of limited supply and transportation distance, difficult storage, unsatisfactory effect, etc., achieve good economic value and environmental emission reduction benefits, and realize the effect of recycling

Pending Publication Date: 2021-02-12
CHINA NERIN ENG
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] Nevertheless, many production enterprises, especially non-ferrous smelting enterprises, do not recycle a large amount of carbon dioxide waste gas produced in the process of neutralizing waste acid with limestone milk, or even use it, but because the waste gas source is easy to fluctuate and difficult to store and supply The conveying distance is limited, and the exhaust gas contains a small amount of H 2 S, HCl, HF and other corrosive gases and other reasons are not ideal

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  • System and method for recycling gas containing carbon dioxide
  • System and method for recycling gas containing carbon dioxide
  • System and method for recycling gas containing carbon dioxide

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Embodiment Construction

[0040] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0041] In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components or the interaction relationship between two components, unles...

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Abstract

The invention discloses a system and a method for recycling gas containing carbon dioxide, and the system for recycling the gas containing the carbon dioxide comprises a steam-water separator, a compressor unit, a condenser and a vacuum storage device. Gas containing carbon dioxide is supplied to a steam-water separator, free water in the gas is removed, then the gas enters a compressor unit to besubjected to multi-stage compression cooling, then the gas enters a condenser to be subjected to cooling liquefaction, finally liquefied carbon dioxide is conveyed into a vacuum storage device to bestored, and non-condensable gas is exhausted. The obtained liquid carbon dioxide not only can realize stable use of carbon dioxide, but also can be canned for sale, and has good economic value and environmental emission reduction benefit.

Description

technical field [0001] The invention belongs to the field of waste gas and wastewater treatment, and in particular relates to a system and method for recycling gas containing carbon dioxide. Background technique [0002] At present, with the increasingly stringent national environmental protection requirements, many production enterprises do not allow wastewater to be discharged outside and need to be reused after advanced treatment. During the advanced treatment of wastewater, the softening of wastewater has become an indispensable pretreatment unit for the stable operation of subsequent advanced treatment. . Currently, wastewater softening methods mainly include sodium carbonate method and carbon dioxide method. The former has a good softening effect, but the cost of chemicals is high. The latter generally uses purchased carbon dioxide as a softener, but the cost of treatment chemicals is 30% to 40% of the former. At present, the softening treatment of wastewater is mainl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/52B01D53/68C02F5/00F25J1/02C01B32/50
CPCB01D53/52B01D53/68B01D53/78B01D2251/304B01D2251/606B01D2257/2045B01D2257/2047B01D2257/304C02F5/00C01B32/50F25J1/0027F25J1/0204Y02P20/151
Inventor 明亮吴国平饶剑锋王小艳勒德智邓祥祥
Owner CHINA NERIN ENG
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