Reformation of Solvent Recovery Process in Polyphenylene Sulfide Production

Liu Hong; Jiang Ximeng; Hu Xiaodong; Cui Mingxian; Fan Yongzhi; Wu Gang

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Reformation of Solvent Recovery Process in Polyphenylene Sulfide Production

Liu Hong, Jiang Ximeng, Hu Xiaodong, Cui Mingxian, Fan Yongzhi, Wu Gang

Published in Asia-Pacific Journal of Chemistry (Volume 1, Issue 1)

Received: 8 April 2019 Accepted: 12 May 2019 Published: 27 May 2019

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Abstract

Polyphenylene sulfide is a kind of engineering plastics with excellent comprehensive properties and wide application. A large number of solvents will be produced in the production of polyphenylene sulfide, and its recovery is very important to reduce the production cost of polyphenylene sulfide and improve the product quality. At present, most of the production enterprises of polyphenylene sulfide use vacuum distillation to recover solvents. In this paper, these main problems existing in solvent recovery process in vacuum distillation are summarized, the original process is reformed. Compared with the original process, the monthly average recovery of NMP and H2O are increased by 83.4 t and 372.6 t respectively, and the recovery rate of NMP and H₂O are increased by 11.9% and 76.3% respectively. The processing capacity of solvent recovery system is increased by 58.3%, and the heat duty of distillation is saved by 30.4%. The salt deposit at the bottom of the distillation column is greatly reduced, and the problem of equipment failure caused by blockage is basically solved. As a result, the impurity content in the recovery system is greatly reduced, and the qualified rates of NMP solvents and polyphenylene sulfide products are increased by 19.4% and 12.2% respectively. Furthermore, the total emissions of harmful components such as chlorobenzene, hydrogen sulfide, ammonia and non-methane hydrocarbons in the exhaust air is reduced by 96.9%, and the monthly average waste water volume of sewage treatment system was reduced by 67.6%, and the contents of COD and ammonia nitrogen in waste water are obviously improved.

Published in	Asia-Pacific Journal of Chemistry (Volume 1, Issue 1)
Page(s)	1-7
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Polyphenylene Sulfide, Solvent Recovery, Reformation

References

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APA Style

Liu Hong, Jiang Ximeng, Hu Xiaodong, Cui Mingxian, Fan Yongzhi, et al. (2019). Reformation of Solvent Recovery Process in Polyphenylene Sulfide Production. Asia-Pacific Journal of Chemistry, 1(1), 1-7.

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ACS Style

Liu Hong; Jiang Ximeng; Hu Xiaodong; Cui Mingxian; Fan Yongzhi, et al. Reformation of Solvent Recovery Process in Polyphenylene Sulfide Production. Asia-Pac. J. Chem. 2019, 1(1), 1-7.

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AMA Style

Liu Hong, Jiang Ximeng, Hu Xiaodong, Cui Mingxian, Fan Yongzhi, et al. Reformation of Solvent Recovery Process in Polyphenylene Sulfide Production. Asia-Pac J Chem. 2019;1(1):1-7.

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@article{10038862,
  author = {Liu Hong and Jiang Ximeng and Hu Xiaodong and Cui Mingxian and Fan Yongzhi and Wu Gang},
  title = {Reformation of Solvent Recovery Process in Polyphenylene Sulfide Production},
  journal = {Asia-Pacific Journal of Chemistry},
  volume = {1},
  number = {1},
  pages = {1-7},
  url = {https://www.sciencepublishinggroup.com/article/10038862},
  abstract = {Polyphenylene sulfide is a kind of engineering plastics with excellent comprehensive properties and wide application. A large number of solvents will be produced in the production of polyphenylene sulfide, and its recovery is very important to reduce the production cost of polyphenylene sulfide and improve the product quality. At present, most of the production enterprises of polyphenylene sulfide use vacuum distillation to recover solvents. In this paper, these main problems existing in solvent recovery process in vacuum distillation are summarized, the original process is reformed. Compared with the original process, the monthly average recovery of NMP and H2O are increased by 83.4 t and 372.6 t respectively, and the recovery rate of NMP and H2O are increased by 11.9% and 76.3% respectively. The processing capacity of solvent recovery system is increased by 58.3%, and the heat duty of distillation is saved by 30.4%. The salt deposit at the bottom of the distillation column is greatly reduced, and the problem of equipment failure caused by blockage is basically solved. As a result, the impurity content in the recovery system is greatly reduced, and the qualified rates of NMP solvents and polyphenylene sulfide products are increased by 19.4% and 12.2% respectively. Furthermore, the total emissions of harmful components such as chlorobenzene, hydrogen sulfide, ammonia and non-methane hydrocarbons in the exhaust air is reduced by 96.9%, and the monthly average waste water volume of sewage treatment system was reduced by 67.6%, and the contents of COD and ammonia nitrogen in waste water are obviously improved.},
 year = {2019}
}

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TY  - JOUR
T1  - Reformation of Solvent Recovery Process in Polyphenylene Sulfide Production
AU  - Liu Hong
AU  - Jiang Ximeng
AU  - Hu Xiaodong
AU  - Cui Mingxian
AU  - Fan Yongzhi
AU  - Wu Gang
Y1  - 2019/05/27
PY  - 2019
T2  - Asia-Pacific Journal of Chemistry
JF  - Asia-Pacific Journal of Chemistry
JO  - Asia-Pacific Journal of Chemistry
SP  - 1
EP  - 7
PB  - Science Publishing Group
UR  - http://www.sciencepg.com/article/10038862
AB  - Polyphenylene sulfide is a kind of engineering plastics with excellent comprehensive properties and wide application. A large number of solvents will be produced in the production of polyphenylene sulfide, and its recovery is very important to reduce the production cost of polyphenylene sulfide and improve the product quality. At present, most of the production enterprises of polyphenylene sulfide use vacuum distillation to recover solvents. In this paper, these main problems existing in solvent recovery process in vacuum distillation are summarized, the original process is reformed. Compared with the original process, the monthly average recovery of NMP and H2O are increased by 83.4 t and 372.6 t respectively, and the recovery rate of NMP and H2O are increased by 11.9% and 76.3% respectively. The processing capacity of solvent recovery system is increased by 58.3%, and the heat duty of distillation is saved by 30.4%. The salt deposit at the bottom of the distillation column is greatly reduced, and the problem of equipment failure caused by blockage is basically solved. As a result, the impurity content in the recovery system is greatly reduced, and the qualified rates of NMP solvents and polyphenylene sulfide products are increased by 19.4% and 12.2% respectively. Furthermore, the total emissions of harmful components such as chlorobenzene, hydrogen sulfide, ammonia and non-methane hydrocarbons in the exhaust air is reduced by 96.9%, and the monthly average waste water volume of sewage treatment system was reduced by 67.6%, and the contents of COD and ammonia nitrogen in waste water are obviously improved.
VL  - 1
IS  - 1
ER  -

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Author Information

Liu Hong

Sichuan Provincial Engineering Laboratory for Manufacturing Technology of High Performance PAS Functional Membrane, Sichuan Develop China Tech Hi-tech Material Co. Ltd., Meishan, China
Jiang Ximeng

Sichuan Provincial Engineering Laboratory for Manufacturing Technology of High Performance PAS Functional Membrane, Sichuan Develop China Tech Hi-tech Material Co. Ltd., Meishan, China
Hu Xiaodong

Sichuan Provincial Engineering Laboratory for Manufacturing Technology of High Performance PAS Functional Membrane, Sichuan Develop China Tech Hi-tech Material Co. Ltd., Meishan, China
Cui Mingxian

Sichuan Provincial Engineering Laboratory for Manufacturing Technology of High Performance PAS Functional Membrane, Sichuan Develop China Tech Hi-tech Material Co. Ltd., Meishan, China
Fan Yongzhi

Sichuan Provincial Engineering Laboratory for Manufacturing Technology of High Performance PAS Functional Membrane, Sichuan Develop China Tech Hi-tech Material Co. Ltd., Meishan, China
Wu Gang

Sichuan Provincial Engineering Laboratory for Manufacturing Technology of High Performance PAS Functional Membrane, Sichuan Develop China Tech Hi-tech Material Co. Ltd., Meishan, China

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Plain Text BibTeX RIS

APA Style

Liu Hong, Jiang Ximeng, Hu Xiaodong, Cui Mingxian, Fan Yongzhi, et al. (2019). Reformation of Solvent Recovery Process in Polyphenylene Sulfide Production. Asia-Pacific Journal of Chemistry, 1(1), 1-7.

Copy | Download

ACS Style

Liu Hong; Jiang Ximeng; Hu Xiaodong; Cui Mingxian; Fan Yongzhi, et al. Reformation of Solvent Recovery Process in Polyphenylene Sulfide Production. Asia-Pac. J. Chem. 2019, 1(1), 1-7.

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AMA Style

Liu Hong, Jiang Ximeng, Hu Xiaodong, Cui Mingxian, Fan Yongzhi, et al. Reformation of Solvent Recovery Process in Polyphenylene Sulfide Production. Asia-Pac J Chem. 2019;1(1):1-7.

Copy | Download

@article{10038862,
  author = {Liu Hong and Jiang Ximeng and Hu Xiaodong and Cui Mingxian and Fan Yongzhi and Wu Gang},
  title = {Reformation of Solvent Recovery Process in Polyphenylene Sulfide Production},
  journal = {Asia-Pacific Journal of Chemistry},
  volume = {1},
  number = {1},
  pages = {1-7},
  url = {https://www.sciencepublishinggroup.com/article/10038862},
  abstract = {Polyphenylene sulfide is a kind of engineering plastics with excellent comprehensive properties and wide application. A large number of solvents will be produced in the production of polyphenylene sulfide, and its recovery is very important to reduce the production cost of polyphenylene sulfide and improve the product quality. At present, most of the production enterprises of polyphenylene sulfide use vacuum distillation to recover solvents. In this paper, these main problems existing in solvent recovery process in vacuum distillation are summarized, the original process is reformed. Compared with the original process, the monthly average recovery of NMP and H2O are increased by 83.4 t and 372.6 t respectively, and the recovery rate of NMP and H2O are increased by 11.9% and 76.3% respectively. The processing capacity of solvent recovery system is increased by 58.3%, and the heat duty of distillation is saved by 30.4%. The salt deposit at the bottom of the distillation column is greatly reduced, and the problem of equipment failure caused by blockage is basically solved. As a result, the impurity content in the recovery system is greatly reduced, and the qualified rates of NMP solvents and polyphenylene sulfide products are increased by 19.4% and 12.2% respectively. Furthermore, the total emissions of harmful components such as chlorobenzene, hydrogen sulfide, ammonia and non-methane hydrocarbons in the exhaust air is reduced by 96.9%, and the monthly average waste water volume of sewage treatment system was reduced by 67.6%, and the contents of COD and ammonia nitrogen in waste water are obviously improved.},
 year = {2019}
}

Copy | Download

TY  - JOUR
T1  - Reformation of Solvent Recovery Process in Polyphenylene Sulfide Production
AU  - Liu Hong
AU  - Jiang Ximeng
AU  - Hu Xiaodong
AU  - Cui Mingxian
AU  - Fan Yongzhi
AU  - Wu Gang
Y1  - 2019/05/27
PY  - 2019
T2  - Asia-Pacific Journal of Chemistry
JF  - Asia-Pacific Journal of Chemistry
JO  - Asia-Pacific Journal of Chemistry
SP  - 1
EP  - 7
PB  - Science Publishing Group
UR  - http://www.sciencepg.com/article/10038862
AB  - Polyphenylene sulfide is a kind of engineering plastics with excellent comprehensive properties and wide application. A large number of solvents will be produced in the production of polyphenylene sulfide, and its recovery is very important to reduce the production cost of polyphenylene sulfide and improve the product quality. At present, most of the production enterprises of polyphenylene sulfide use vacuum distillation to recover solvents. In this paper, these main problems existing in solvent recovery process in vacuum distillation are summarized, the original process is reformed. Compared with the original process, the monthly average recovery of NMP and H2O are increased by 83.4 t and 372.6 t respectively, and the recovery rate of NMP and H2O are increased by 11.9% and 76.3% respectively. The processing capacity of solvent recovery system is increased by 58.3%, and the heat duty of distillation is saved by 30.4%. The salt deposit at the bottom of the distillation column is greatly reduced, and the problem of equipment failure caused by blockage is basically solved. As a result, the impurity content in the recovery system is greatly reduced, and the qualified rates of NMP solvents and polyphenylene sulfide products are increased by 19.4% and 12.2% respectively. Furthermore, the total emissions of harmful components such as chlorobenzene, hydrogen sulfide, ammonia and non-methane hydrocarbons in the exhaust air is reduced by 96.9%, and the monthly average waste water volume of sewage treatment system was reduced by 67.6%, and the contents of COD and ammonia nitrogen in waste water are obviously improved.
VL  - 1
IS  - 1
ER  -

Copy | Download