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Carbonization cleaning process of carbonizer for producing heavy soda ash

A heavy soda ash and carbonization tower technology, which is applied in the direction of carbonate preparations, can solve the problems of affecting production cycle and efficiency, high raw material consumption and energy consumption, and high water content of heavy alkali filter cake, so as to avoid carbonization shutdown and solve Pollution and waste of raw materials, the effect of increasing the degree of carbonization conversion

Inactive Publication Date: 2012-05-02
SICHUAN HEBANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology helps reduce emissions associated with burning fossil fuels while producing high purity hydroxylamine (HA) without causing harm or environmental concerns. By utilizing this process instead of relying on an expensive acidifying agent like sulfur trioxide, it saves money compared to current methods such as thermal crackers. Additionally, increasing the temperatures of the alkalinity solution increases its ability to absorb impurities into lime sludge more efficiently than other alternatives. Overall, these technical improvements help achieve better fuel quality and reduced air pollutants.

Problems solved by technology

This technical problem addressed by this patented describes how current methods involve removing scales from inside walls during the manufacturing of synthetic gas (SNG), resulting in increased maintenance costs due to frequent repairs or downtime caused by equipment failure.

Method used

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  • Carbonization cleaning process of carbonizer for producing heavy soda ash
  • Carbonization cleaning process of carbonizer for producing heavy soda ash

Examples

Experimental program
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Effect test

Embodiment 1

[0027] A. Adopt marshalling operation, one tower is cleaned, and the remaining three towers are used for alkali production, and the towers are washed with ammonia mother liquor II in turn;

[0028] B, the ammonia mother liquor II that concentration is B1.02 is according to the flow rate of 450 cubic meters per hour, is continuously sent in the cleaning tower with pump pressurization, and feeds the mixed gas of low-concentration carbon dioxide gas and nitrogen, stirs; Wherein: The carbon dioxide gas concentration is controlled at 10%; the temperature of the mixed gas entering the tower is 35°C, and the flow rate is 1500 cubic meters per hour; the temperature of the ammonia mother liquor II is 40°C;

[0029] C. While dissolving the scars such as sodium bicarbonate and ammonium bicarbonate in the tower with ammonia mother liquor II, the ammonia in the ammonia mother liquor II reacts with carbon dioxide to obtain HCO 3- ;Achieve the purpose of absorbing carbon dioxide, and then pl...

Embodiment 2

[0034] A. Adopt marshalling operation, one tower is cleaned, and the remaining three towers are used for alkali production, and the towers are washed with ammonia mother liquor II in turn;

[0035] B, the ammonia mother liquor II that concentration is B1.06 is according to the flow rate of 500 cubic meters per hour, is continuously sent in the cleaning tower with pump pressurization, and feeds the mixed gas of low-concentration carbon dioxide gas and nitrogen, stirs; Wherein: The carbon dioxide gas concentration is controlled at 20%; the temperature of the mixed gas entering the tower is 37°C, and the flow rate is 2000 cubic meters per hour; the temperature of the ammonia mother liquor II is 35°C;

[0036] C. While dissolving the scars such as sodium bicarbonate and ammonium bicarbonate in the tower with ammonia mother liquor II, the ammonia in the ammonia mother liquor II reacts with carbon dioxide to obtain HCO 3- ;Achieve the purpose of absorbing carbon dioxide, and then pl...

Embodiment 3

[0041] A. Adopt marshalling operation, one tower is cleaned, and the remaining three towers are used for alkali production, and the towers are washed with ammonia mother liquor II in turn;

[0042] B, the ammonia mother liquor II that concentration is B1.04 is according to the flow rate of 550 cubic meters per hour, is continuously sent in the cleaning tower with pump pressurization, and feeds the mixed gas of low-concentration carbon dioxide gas and nitrogen, stirs; Wherein: The carbon dioxide gas concentration is controlled at 14%; the temperature of the mixed gas entering the tower is 40°C, and the flow rate is 1800 cubic meters per hour; the temperature of the ammonia mother liquor II is 38°C;

[0043] C. While dissolving the scars such as sodium bicarbonate and ammonium bicarbonate in the tower with ammonia mother liquor II, the ammonia in the ammonia mother liquor II reacts with carbon dioxide to obtain HCO 3- ;Achieve the purpose of absorbing carbon dioxide, and then pl...

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Abstract

The invention discloses a carbonization cleaning process of a carbonizer for producing heavy soda ash, particularly aiming at a carbonization cleaning process of an outside cool tower for producing heavy soda ash, characterized by: using marshalling operation, using one tower for cleaning, using the other three towers for producing soda, and washing the towers with an ammonia mother liquor II by turns; sending the ammonia mother liquor II in a cleaning tower, letting a mixed gas of carbon dioxide and nitrogen in the cleaning tower, dissolving sodium bicarbonate and ammonium bicarbonate and other scabs in the tower with the ammonia mother liquor II, and simultaneously reacting ammonia in the ammonia mother liquor II with carbon dioxide to achieve the purposes of carbon dioxide absorption and then precarbonization. According to the invention, because of no need of letting the hot ammonia mother liquor II be subject to cooling and then enter in the soda production tower, the carbonization conversion degree is effectively raised, and the carbonization cleaning process disclosed herein is beneficial for cleaning the carbonizer.

Description

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Claims

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Application Information

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Owner SICHUAN HEBANG
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