Discussions regarding triamines used in conjunction with caustic soda?
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Dear sea friends, to what extent do current caustic soda manufacturers have access to triamine? Does the double-alkali plant produce soda ash from concentrated gas or shifted gas? Generally, what amount of triamine is required for a given scale of caustic soda production [for example, 15,000 tons for 300,000 tons]. What about the components of the triamine exhaust gas?
Yes, you’re right; 300,000 tons with a ratio of 1.5, and the exhaust components are ammonia, carbon dioxide, and some by-products of triamines
I would like to ask Expert XJG: Do the by-products of triamines have no impact on the quality of the base?
By-products should have no effect on the polyalkali. If they are insoluble substances, they are removed right at the point where ammonia is produced. If they are dissolved in the product, their presence goes unnoticed due to their small quantity. However, some by-products undergo chemical reactions within the polyalkali system, mainly with water; the substances produced are still ammonia and carbon dioxide, etc., and these do not have any impact
Reply to 2# xjg751106: If the mixture of ammonia and carbon dioxide from the triamine exhaust gas is sent back to the caustic soda production system, will there be no risk of crystallization and blockages in the exhaust gas delivery pipes if ammonia is directly absorbed in the ammonia absorption process? Is it prone to clogging? How to avoid it? By the way, what are the levels of ammonia and carbon dioxide in triamine exhaust gases? Looking forward to the answers from the triamine expert!
Reply to 5# Qingtan Xiaolong: Maintaining a certain temperature will reduce the occurrence of crystallization to a certain extent
Shanxi Fengxi and Henan Junma already have integrated production facilities; it is recommended that those interested visit them
Will crystallization blockages definitely occur in the exhaust gas delivery pipes? If it tends to get clogged, how can this be avoided?
Using larger-diameter pipes for exhaust gas transmission and adding steam tracing pipes can reduce the impact of scabbing and blockages……
300,000 tons paired with 1. 50,000 tons of triamine exhaust gas is acceptable.
Some companies are testing a setup of 300,000 tons combined with 30,000 tons (one low-pressure process unit along with one atmospheric-pressure process unit), and it is approaching success.