Is it feasible to produce soda ash from carbon dioxide extracted from flue gas?
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Is it feasible to produce soda ash using carbon dioxide from flue gas?
Yes, it’s already a mature product
It’s possible, but shouldn’t we consider the issues of cost and product competitiveness? ……
Reply to 3# s016357: Yes, it’s really difficult to decide what exactly to produce
What is flue gas? What’s the concentration? We also need to consider raw materials such as salt and ammonia
When it comes to investing and construction, this must be taken into consideration. Anyone who doesn’t consider the return on investment certainly isn’t a businessman
:Victory: What concentration of sodium hydroxide solution is required to produce industrial-grade soda ash?
Reply to 7# maming228: A caustic soda solution with a concentration of around 15% can be used to produce a soda ash solution with a concentration of over 10%
Reply to 1# MoMoYiran: It is feasible, but the concentration of flue gas is relatively low; the maximum theoretical concentration is 22%. Therefore, pressurized shift gas can be used for alkali production, but the manufacturing costs and product quality need to be taken into consideration
Reply to 7# maming228: The current market conditions for sodium hydroxide are quite good. However, if it’s used to produce soda ash, the costs are excessively high. Currently, the cost of sodium hydroxide per 100% purity is around 1,100 yuan; just this alone accounts for approximately 1,700 yuan in expenses. This doesn’t even include costs related to water, electricity, steam, and labor. In total, these costs should be no less than 2,000 yuan. At present, there is an oversupply of soda ash in the market, with the ex-factory price being around 1,500 yuan. Such a price point offers no competitive advantage
Flue gas is used for waste heat recovery to produce chilled water; this has been done before. However, I’ve never seen any plant use flue gas to produce soda ash