Desulfurization and denitrification method and treatment device for marine exhaust gas

A waste gas desulfurization and treatment device technology, applied in the direction of combination devices, separation methods, chemical instruments and methods, etc., can solve the problems of cumbersome storage, adverse effects on crew life and health, and achieve the effect of low price
CN102463015AActive Publication Date: 2012-05-23南亮压力容器技术(上海)有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
南亮压力容器技术(上海)有限公司
Publication Date
2012-05-23

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Abstract

The invention discloses a desulfurization and denitrification method and a treatment device for marine exhaust gas. Exhaust gas produced by a marine diesel engine is treated with ozone, hydrogen peroxide and a neutralizing agent, and the neutralizing agent is sodium chloride with the characteristics of high desulfurization and denitrification capacities, low price and extraction from seawater at any time. Being different from high-irritation and toxic ammonia neutralizing agents, on-board permission of sodium chloride is not required, so that the problems of inconvenience in using and managing other similar neutralizing agents and adverse effects on the living environment of shipmen can be solved; and on the other hand, a neutral salt with a high added value is produced in a neutralizing treatment process, and is recovered through an exhaust pipe at the bottom of a reaction groove, so that the recovery rate and reutilization ratio of the neutral salt are increased greatly. Regions are partitioned inside the reaction space of a porous plate for distributing air current, so that ozone treatment, hydrogen peroxide treatment and neutralizing agent treatment are performed separately respectively. Exhaust gas treatment can be performed under a uniform distribution condition, so that treatment efficiency is increased.
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Description

【Technical field】

[0001] The technical field of the invention belongs to the category of using ozone, hydrogen peroxide and neutralizing agent to treat exhaust gas from marine diesel engines. The specific content of the present invention is: use cheap sodium chloride, which can be extracted from sea water at any time, as a neutralizing agent for desulfurization and denitrification. The neutral salt with high added value produced during the neutralization reaction is recovered through the discharge pipe at the bottom of the reaction tank. The perforated plate distributes the air flow and divides the inner area of ​​the reaction space, so that ozone treatment, hydrogen peroxide treatment and neutralizer treatment can be carried out in independent spaces. 【Background technique】

[0002] Recently, with accelerated industrial development, consumer demand for various chemical fuels such as oil and coal has also increased dramatically. Various harmful gases produced during the co...

Claims

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