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Modeling and Simulation for the Production Process of Soda Ash by the Ammonium Sulfate‐Soda Method
Author(s) -
Pak Kyong Song,
Son Sun Il,
Li Bong Hak,
Jang Myong Pok,
Jang Paek San,
Kim Kuk Chol,
Pak Sung Nam
Publication year - 2021
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.202100145
Subject(s) - ammonium sulfate , sulfate , raw material , chemistry , ammonium , process (computing) , aqueous solution , pulp and paper industry , absorption (acoustics) , chemical engineering , waste management , inorganic chemistry , materials science , nuclear chemistry , chromatography , organic chemistry , engineering , composite material , computer science , operating system
The ammonium sulfate‐soda method is a procedure that produces soda ash and the by‐product ammonium sulfate, using mirabilite as the raw material. Here, a process for producing soda ash by the ammonium sulfate‐soda method is proposed. Based on the reaction mechanisms occurring in the Na 2 SO 4 ‐NH 3 ‐CO 2 ‐H 2 O system and the kinetic‐thermodynamic data of the CO 2 absorption process using aqueous NH 3 , the soda ash production process is modeled and simulated using Aspen Plus. The effects of various process parameters (the concentration of the raw mirabilite solution, the amounts of NH 3 and CO 2 flowing into the process, and the recycle ratio of CO 2 exhausted from the NaHCO 3 calciner, etc.) on the process performance are investigated.