Aiming at the difficult to recover hydrogen chloride mixed tail gas generated during the production of lithium bis(fluorosulfonyl)imide (LiFSI), the PRO II process simulation software was adopted to optimize the parameters of the compression condensation recovery process in this paper. Considering equipment investment, operating energy consumption and anti corrosion risks comprehensively, the optimal process parameters were determined, with the final compressor pressure of 2.0MPaG and condensation recovery temperature of 0°C. By comparing the advantages and disadvantages of reciprocating compressors and oil injected screw compressors, a two stage series oil free screw compressor was selected as the pressurization equipment. High temperature corrosion caused by acidic gas was inhibited by upgrading the compressor casing and rotor to 2205 duplex steel material and using thionyl chloride as the special internal liquid spraying medium. A three stage composite sealing structure consisting of front labyrinth, double end dry gas and isolation comb tooth seals was designed to achieve zero leakage of process gas. The industrial operation results of the LG58/0.0 2.0 unit show that under working conditions with wide fluctuations of inlet pressure (0–0.01MPaG) and inlet temperature (−10–10°C), the discharge pressure of the unit remains stable, the outlet temperature can be steadily controlled within 70–75°C, no medium leakage or oil contamination occurs, and the purity of recovered hydrogen chloride products meets process requirements. This complete oil free screw compression solution can provide engineering references for pressurization recovery and equipment selection of strongly corrosive mixed gas in the lithium battery and fluorine chemical industries.
| Published in | Science Research (Volume 14, Issue 5) |
| DOI | 10.11648/j.sr.20261405.22 |
| Page(s) | 350-355 |
| 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), 2026. Published by Science Publishing Group |
Oil-free Screw Compressor, Hydrogen Chloride Mixed Gas, Gas Compression, Condensation Recovery
序号 | 名称 | 单位 | 数据 |
|---|---|---|---|
1 | 温度 | °C | 0 |
2 | 压力 | MPaG | 0 |
3 | 组分 | Mol% | HCl (60%), SO2 (35%), SOCL2 (5%) |
序号 | 冷凝压力/MPaG | 冷凝温度/°C | 压缩电耗/kWh | 循环水/t/h | 制冷电耗/kWh | 回收率/% |
|---|---|---|---|---|---|---|
1 | 0.5 | -40 | 300 | 32 | 594 | 100 |
2 | 1.0 | -20 | 400 | 51 | 356 | 100 |
3 | 1.5 | -10 | 470 | 75 | 206 | 100 |
4 | 2.0 | 0 | 521 | 95 | 109 | 100 |
5 | 2.5 | 5 | 563 | 112 | 66 | 100 |
序号 | 级数 | 1级 | 2级 |
|---|---|---|---|
1 | 压缩机入口压力(MPaG) | 0 | - |
2 | 压缩机入口温度(°C) | 0 | 40 |
3 | 压缩机出口压力(MPaG) | 0.93 | 2.03 |
4 | 压缩机出口温度(°C) | 85 | 85 |
5 | 冷却器后压力(MPaG) | 0.9 | 2.0 |
6 | 冷却器后温度(°C) | 40 | 40 |
序号 | 项目 | 设计工况 | 运行工况 |
|---|---|---|---|
1 | 一级入口压力(MPaG) | 0 | 0~0.01 |
2 | 一级入口温度(°C) | 0 | -10~10 |
3 | 一级出口压力(MPaG) | 0.93 | 0.92 |
4 | 一级出口温度(°C) | 85 | 70~75 |
5 | 一级冷却器后压力(MPaG) | 0.93 | 0.9 |
6 | 一级冷却器后温度(°C) | 40 | 40 |
7 | 一级喷液量(t/h) | 3.3 | 4.5~5.6 |
8 | 二级出口压力(MPaG) | 2.03 | 2.03 |
9 | 二级出口温度(°C) | 85 | 70~75 |
10 | 二级冷却器压力(MPaG) | 2.0 | 2.0 |
11 | 冷却器后温度(°C) | 40 | 40 |
12 | 二级喷液量(t/h) | 1.7 | 2.2~3.0 |
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APA Style
You-cai, W., Chun-cheng, X., Zhou-bo, C., Yi-shi, Z., Lin-rui, W., et al. (2026). Application of Oil-free Screw Compressor in Hydrogen Chloride Mixed Gas Compression. Science Research, 14(5), 350-355. https://doi.org/10.11648/j.sr.20261405.22
ACS Style
You-cai, W.; Chun-cheng, X.; Zhou-bo, C.; Yi-shi, Z.; Lin-rui, W., et al. Application of Oil-free Screw Compressor in Hydrogen Chloride Mixed Gas Compression. Sci. Res. 2026, 14(5), 350-355. doi: 10.11648/j.sr.20261405.22
AMA Style
You-cai W, Chun-cheng X, Zhou-bo C, Yi-shi Z, Lin-rui W, et al. Application of Oil-free Screw Compressor in Hydrogen Chloride Mixed Gas Compression. Sci Res. 2026;14(5):350-355. doi: 10.11648/j.sr.20261405.22
@article{10.11648/j.sr.20261405.22,
author = {Wang You-cai and Xu Chun-cheng and Cui Zhou-bo and Zhu Yi-shi and Wu Lin-rui and Wang Yao-de and Wang Yan and Gao Wei-kang},
title = {Application of Oil-free Screw Compressor in Hydrogen Chloride Mixed Gas Compression},
journal = {Science Research},
volume = {14},
number = {5},
pages = {350-355},
doi = {10.11648/j.sr.20261405.22},
url = {https://doi.org/10.11648/j.sr.20261405.22},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sr.20261405.22},
abstract = {Aiming at the difficult to recover hydrogen chloride mixed tail gas generated during the production of lithium bis(fluorosulfonyl)imide (LiFSI), the PRO II process simulation software was adopted to optimize the parameters of the compression condensation recovery process in this paper. Considering equipment investment, operating energy consumption and anti corrosion risks comprehensively, the optimal process parameters were determined, with the final compressor pressure of 2.0MPaG and condensation recovery temperature of 0°C. By comparing the advantages and disadvantages of reciprocating compressors and oil injected screw compressors, a two stage series oil free screw compressor was selected as the pressurization equipment. High temperature corrosion caused by acidic gas was inhibited by upgrading the compressor casing and rotor to 2205 duplex steel material and using thionyl chloride as the special internal liquid spraying medium. A three stage composite sealing structure consisting of front labyrinth, double end dry gas and isolation comb tooth seals was designed to achieve zero leakage of process gas. The industrial operation results of the LG58/0.0 2.0 unit show that under working conditions with wide fluctuations of inlet pressure (0–0.01MPaG) and inlet temperature (−10–10°C), the discharge pressure of the unit remains stable, the outlet temperature can be steadily controlled within 70–75°C, no medium leakage or oil contamination occurs, and the purity of recovered hydrogen chloride products meets process requirements. This complete oil free screw compression solution can provide engineering references for pressurization recovery and equipment selection of strongly corrosive mixed gas in the lithium battery and fluorine chemical industries.},
year = {2026}
}
TY - JOUR T1 - Application of Oil-free Screw Compressor in Hydrogen Chloride Mixed Gas Compression AU - Wang You-cai AU - Xu Chun-cheng AU - Cui Zhou-bo AU - Zhu Yi-shi AU - Wu Lin-rui AU - Wang Yao-de AU - Wang Yan AU - Gao Wei-kang Y1 - 2026/09/14 PY - 2026 N1 - https://doi.org/10.11648/j.sr.20261405.22 DO - 10.11648/j.sr.20261405.22 T2 - Science Research JF - Science Research JO - Science Research SP - 350 EP - 355 PB - Science Publishing Group SN - 2329-0927 UR - https://doi.org/10.11648/j.sr.20261405.22 AB - Aiming at the difficult to recover hydrogen chloride mixed tail gas generated during the production of lithium bis(fluorosulfonyl)imide (LiFSI), the PRO II process simulation software was adopted to optimize the parameters of the compression condensation recovery process in this paper. Considering equipment investment, operating energy consumption and anti corrosion risks comprehensively, the optimal process parameters were determined, with the final compressor pressure of 2.0MPaG and condensation recovery temperature of 0°C. By comparing the advantages and disadvantages of reciprocating compressors and oil injected screw compressors, a two stage series oil free screw compressor was selected as the pressurization equipment. High temperature corrosion caused by acidic gas was inhibited by upgrading the compressor casing and rotor to 2205 duplex steel material and using thionyl chloride as the special internal liquid spraying medium. A three stage composite sealing structure consisting of front labyrinth, double end dry gas and isolation comb tooth seals was designed to achieve zero leakage of process gas. The industrial operation results of the LG58/0.0 2.0 unit show that under working conditions with wide fluctuations of inlet pressure (0–0.01MPaG) and inlet temperature (−10–10°C), the discharge pressure of the unit remains stable, the outlet temperature can be steadily controlled within 70–75°C, no medium leakage or oil contamination occurs, and the purity of recovered hydrogen chloride products meets process requirements. This complete oil free screw compression solution can provide engineering references for pressurization recovery and equipment selection of strongly corrosive mixed gas in the lithium battery and fluorine chemical industries. VL - 14 IS - 5 ER -