Production method for synthesizing ammonium bicarbonate fertilizer by using CO2 waste gas

Abstract

The invention discloses a production method for synthesizing an ammonium bicarbonate fertilizer by using CO2 waste gas, which comprises the following steps of: using a process which adopts countercurrent contact to prepare the CO2 waste gas and strong ammonia water after tail gas dedusting and desulfurization into ammonium bicarbonate; reclaiming ammonia gas in the previous process step by using an ammonia reclaiming tower; and discharging remaining tail gas into the atmosphere directly, wherein the ammonia water in the process is concentrated in a reverse osmosis system and is used for recycling again. The greenhouse gas CO2 in the method is treated, so the discharge amount of the greenhouse gas is reduced; the generation of the ammonium bicarbonate fertilizer in the production process has economic benefits; and the production method adopts a reverse osmosis technique to concentrate diluted ammonia water and recycle the strong ammonia water and dialysis water so as to fulfill the aim of zero discharge.

Description

technical field [0001] The invention discloses a method using CO 2 The production method of waste gas synthetic ammonium bicarbonate fertilizer belongs to CO 2 The technical field of waste gas treatment and synthesis of ammonium bicarbonate fertilizer. Background technique [0002] Since the Industrial Revolution, the carbon dioxide and other heat-absorbing greenhouse gases that humans have emitted into the atmosphere have increased year by year, and the greenhouse effect of the atmosphere has also increased. A series of serious problems such as melting, rising sea level, shrinking land area, and abnormal global climate have attracted the attention of countries all over the world. Reducing greenhouse gas emissions has recently become a common goal for all countries. At the World Climate Conference held in Copenhagen in December 2009, countries around the world announced their own carbon dioxide emission reduction plans to reduce greenhouse gas emissions and protect the hum...

AI Technical Summary

Problems solved by technology

[0004] At present, the waste gas treatment efficiency of various industrial enterprises is generally low, or it is discharged into the atmosphere only after desulfurization and dust removal, and a large amount of CO 2 The emission of greenhouse gases into the environment has caused a series of environmental problems such as the acceleration of global warming.

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