Is there any from Zibo Huifeng Petrochemicals? (Is the stripping tower equipped with side-line extraction?)
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Is there any company in Zibo Huifeng Petrochemicals that uses side-line extraction for its stripping towers? Is there no extraction of acidic gases from the tower top?
The acidic water stripping tower is a single-tower unit; the gas containing amino acids comes out of the top of the tower and is sent directly to the sulfur combustion furnace.
The side stream contains ammonia, and it is necessary to extract the acidic gases from the top of the tower; the issue is merely whether it contains ammonia or not. The process cannot proceed without acidic gases being removed from the top of the tower.
Reply to 3# Shandong Huaxing: Why does ammonia smell bad?
Reply to 4# sxf1028102800: It definitely contains hydrogen sulfide; it has the smell of rotten eggs, so be sure to pay attention to safety.
Reply to 5# Shandong Huaxing: How can ammonia carry hydrogen sulfide? Ammonia gas generally does not come out together with it; what causes this?
Reply to 6# sxf1028102800: It wasn’t properly purified; it seems that your purified water isn’t up to standard either, right?
Reply to 6# sxf1028102800: The amount of material drawn off through the side line is too large, causing some hydrogen sulfide to enter that side line. Moreover, the analysis of ammonia products includes a parameter for hydrogen sulfide content; does the original poster not conduct product analysis?
Reply to 7# Shandong Huaxing: The purified water may meet the standards; the decomposition temperatures for hydrogen sulfide and ammonia are different. Generally, hydrogen sulfide is decomposed at around 125 degrees Celsius, while ammonia requires about 160 degrees Celsius to be decomposed.
It is likely that the desulfurization efficiency of the ammonia purification system is poor, resulting in an excessive sulfur content in the gaseous ammonia. The following suggestions are given: 1. First, analyze the sulfur content in the gaseous ammonia. 2. If the sulfur content is high, identify the cause. There are generally two reasons for high sulfur content: (1) The lifespan of the desulfurizing agent has expired, with its sulfur capacity either saturated or exceeded; (2) The sulfur content in the gaseous ammonia flowing into the system exceeds the desulfurization capacity of the agent, which is mainly caused by too low a withdrawal rate from the top of the stripping tower, leading to high sulfur levels in the side stream. In most cases, it is the second reason