Chemical Industry and Engineering Progress ›› 2022, Vol. 41 ›› Issue (10): 5342-5353.DOI: 10.16085/j.issn.1000-6613.2021-2646
• Energy processes and technology • Previous Articles Next Articles
LENG Nanjiang(), MA Guoguang(), ZHANG Tao, LEI Yang, PENG Hao, XIONG Zuoshuai, CHEN Yuting
Received:
2021-12-27
Revised:
2022-03-12
Online:
2022-10-21
Published:
2022-10-20
Contact:
MA Guoguang
冷南江(), 马国光(), 张涛, 雷洋, 彭豪, 熊祚帅, 陈玉婷
通讯作者:
马国光
作者简介:
冷南江(1996—),男,硕士研究生,研究方向为天然气集输与处理工艺。E-mail:410870045@qq.com。
CLC Number:
LENG Nanjiang, MA Guoguang, ZHANG Tao, LEI Yang, PENG Hao, XIONG Zuoshuai, CHEN Yuting. Research and exploration on purification of natural gas with high organic sulfur content[J]. Chemical Industry and Engineering Progress, 2022, 41(10): 5342-5353.
冷南江, 马国光, 张涛, 雷洋, 彭豪, 熊祚帅, 陈玉婷. 高含有机硫天然气的净化研究与探索[J]. 化工进展, 2022, 41(10): 5342-5353.
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URL: https://hgjz.cip.com.cn/EN/10.16085/j.issn.1000-6613.2021-2646
组分 | 摩尔分数/% | 组分 | 摩尔分数/% | 组分 | 含量/mg·m-3 |
---|---|---|---|---|---|
CH4 | 44.079 | C6+ | 2.579 | COS | 18.16 |
C2H6 | 9.666 | O2 | 0.100 | CH3SH | 576.43 |
C3H8 | 8.166 | He | 0.020 | C2H5SH | 89.68 |
i-C4H10 | 1.709 | H2 | 0.100 | CS2 | 12.69 |
n-C4H10 | 5.507 | CO2 | 6.157 | ||
i-C5H12 | 2.479 | N2 | 13.394 | ||
n-C5H12 | 3.328 | H2S | 2.669 |
组分 | 摩尔分数/% | 组分 | 摩尔分数/% | 组分 | 含量/mg·m-3 |
---|---|---|---|---|---|
CH4 | 44.079 | C6+ | 2.579 | COS | 18.16 |
C2H6 | 9.666 | O2 | 0.100 | CH3SH | 576.43 |
C3H8 | 8.166 | He | 0.020 | C2H5SH | 89.68 |
i-C4H10 | 1.709 | H2 | 0.100 | CS2 | 12.69 |
n-C4H10 | 5.507 | CO2 | 6.157 | ||
i-C5H12 | 2.479 | N2 | 13.394 | ||
n-C5H12 | 3.328 | H2S | 2.669 |
项目 | 装置设计参数 | 实际运行参数 |
---|---|---|
进料气量/104m3·d-1 | 40 | 22 |
进料气H2S含量/mg·m-3 | 20000 | 40000 |
进料气有机硫含量/mg·m-3 | 100 | 700 |
出料气H2S含量/mg·m-3 | ≤20 | 37 |
出料气有机硫含量/mg·m-3 | ≤100 | 84 |
脱硫负荷/t·d-1 | 8.05 | 10.5 |
进料气温度/℃ | 53 | 50 |
进料气压力/MPa | 2.5 | 2.5 |
脱硫剂配比(MDEA质量分数)/% | 40 | 40 |
MDEA溶液循环量/m3·h-1 | 26 | 22~24 |
项目 | 装置设计参数 | 实际运行参数 |
---|---|---|
进料气量/104m3·d-1 | 40 | 22 |
进料气H2S含量/mg·m-3 | 20000 | 40000 |
进料气有机硫含量/mg·m-3 | 100 | 700 |
出料气H2S含量/mg·m-3 | ≤20 | 37 |
出料气有机硫含量/mg·m-3 | ≤100 | 84 |
脱硫负荷/t·d-1 | 8.05 | 10.5 |
进料气温度/℃ | 53 | 50 |
进料气压力/MPa | 2.5 | 2.5 |
脱硫剂配比(MDEA质量分数)/% | 40 | 40 |
MDEA溶液循环量/m3·h-1 | 26 | 22~24 |
单元 | 设备 | 参数 | 模拟 数据 | 实测 数据 | 误差 /% |
---|---|---|---|---|---|
脱硫单元 | MDEA吸收塔 | 顶部压力/MPa | 2.53 | 2.53 | 0 |
顶部温度/℃ | 50.46 | 50 | 0.90 | ||
底部压力/MPa | 2.72 | 2.72 | 0 | ||
底部温度/℃ | 52.05 | 52 | 0.96 | ||
净化气分离器 | 压力/MPa | 2.53 | 2.53 | 0 | |
温度/℃ | 47.46 | 48 | 1.13 | ||
硫化氢含量/mg·m-3 | 36.76 | 36 | 2.11 | ||
总硫含量/mg·m-3 | 126.46 | 123 | 3.10 | ||
再生单元 | MDEA再生塔 | 顶部压力/kPa | 80 | 80 | 0 |
顶部温度/℃ | 92.55 | 92 | 0.60 | ||
底部压力/kPa | 120 | 120 | 0 | ||
底部温度/℃ | 112.8 | 113 | 0.18 | ||
胺液循环量/m3·h-1 | 30 | 30 | 0 | ||
塔底重沸器 | 压力/kPa | 120 | 120 | 0 | |
温度/℃ | 112.8 | 113 | 0.18 |
单元 | 设备 | 参数 | 模拟 数据 | 实测 数据 | 误差 /% |
---|---|---|---|---|---|
脱硫单元 | MDEA吸收塔 | 顶部压力/MPa | 2.53 | 2.53 | 0 |
顶部温度/℃ | 50.46 | 50 | 0.90 | ||
底部压力/MPa | 2.72 | 2.72 | 0 | ||
底部温度/℃ | 52.05 | 52 | 0.96 | ||
净化气分离器 | 压力/MPa | 2.53 | 2.53 | 0 | |
温度/℃ | 47.46 | 48 | 1.13 | ||
硫化氢含量/mg·m-3 | 36.76 | 36 | 2.11 | ||
总硫含量/mg·m-3 | 126.46 | 123 | 3.10 | ||
再生单元 | MDEA再生塔 | 顶部压力/kPa | 80 | 80 | 0 |
顶部温度/℃ | 92.55 | 92 | 0.60 | ||
底部压力/kPa | 120 | 120 | 0 | ||
底部温度/℃ | 112.8 | 113 | 0.18 | ||
胺液循环量/m3·h-1 | 30 | 30 | 0 | ||
塔底重沸器 | 压力/kPa | 120 | 120 | 0 | |
温度/℃ | 112.8 | 113 | 0.18 |
序号 | 组合 | 配比 |
---|---|---|
1 | MDEA+DIPA | 15%MDEA+40%DIPA+45%H2O |
2 | MDEA+DEA | 35%MDEA+20%DEA+45%H2O |
3 | 环丁砜+MDEA | 30%环丁砜+50%MDEA+20%H2O |
4 | 环丁砜+DIPA | 30%环丁砜+50%DIPA+20%H2O |
序号 | 组合 | 配比 |
---|---|---|
1 | MDEA+DIPA | 15%MDEA+40%DIPA+45%H2O |
2 | MDEA+DEA | 35%MDEA+20%DEA+45%H2O |
3 | 环丁砜+MDEA | 30%环丁砜+50%MDEA+20%H2O |
4 | 环丁砜+DIPA | 30%环丁砜+50%DIPA+20%H2O |
序号 | 设计矩阵 | 实验结果 | |||
---|---|---|---|---|---|
X1 | X2 | X3 | Y1/% | Y2/% | |
1 | 0.22 | 0.55 | 0.23 | 99.9722 | 99.6524 |
2 | 0.27 | 0.55 | 0.18 | 99.5680 | 99.5610 |
3 | 0.237 | 0.547 | 0.217 | 99.9502 | 99.8670 |
4 | 0.24 | 0.52 | 0.24 | 99.9320 | 99.8210 |
5 | 0.27 | 0.525 | 0.205 | 99.8174 | 99.6560 |
6 | 0.248 | 0.528 | 0.224 | 99.9230 | 99.8320 |
7 | 0.245 | 0.55 | 0.205 | 99.9561 | 99.8270 |
8 | 0.259 | 0.539 | 0.202 | 99.8508 | 99.6700 |
9 | 0.22 | 0.55 | 0.23 | 99.9702 | 99.8326 |
10 | 0.234 | 0.536 | 0.229 | 99.9445 | 99.8448 |
11 | 0.257 | 0.514 | 0.229 | 99.8564 | 99.7131 |
12 | 0.27 | 0.525 | 0.205 | 99.8744 | 99.6230 |
13 | 0.24 | 0.52 | 0.24 | 99.9628 | 99.8680 |
14 | 0.27 | 0.5 | 0.23 | 99.9114 | 99.1331 |
15 | 0.27 | 0.5 | 0.23 | 99.9065 | 99.1800 |
16 | 0.27 | 0.55 | 0.18 | 99.6480 | 99.6304 |
序号 | 设计矩阵 | 实验结果 | |||
---|---|---|---|---|---|
X1 | X2 | X3 | Y1/% | Y2/% | |
1 | 0.22 | 0.55 | 0.23 | 99.9722 | 99.6524 |
2 | 0.27 | 0.55 | 0.18 | 99.5680 | 99.5610 |
3 | 0.237 | 0.547 | 0.217 | 99.9502 | 99.8670 |
4 | 0.24 | 0.52 | 0.24 | 99.9320 | 99.8210 |
5 | 0.27 | 0.525 | 0.205 | 99.8174 | 99.6560 |
6 | 0.248 | 0.528 | 0.224 | 99.9230 | 99.8320 |
7 | 0.245 | 0.55 | 0.205 | 99.9561 | 99.8270 |
8 | 0.259 | 0.539 | 0.202 | 99.8508 | 99.6700 |
9 | 0.22 | 0.55 | 0.23 | 99.9702 | 99.8326 |
10 | 0.234 | 0.536 | 0.229 | 99.9445 | 99.8448 |
11 | 0.257 | 0.514 | 0.229 | 99.8564 | 99.7131 |
12 | 0.27 | 0.525 | 0.205 | 99.8744 | 99.6230 |
13 | 0.24 | 0.52 | 0.24 | 99.9628 | 99.8680 |
14 | 0.27 | 0.5 | 0.23 | 99.9114 | 99.1331 |
15 | 0.27 | 0.5 | 0.23 | 99.9065 | 99.1800 |
16 | 0.27 | 0.55 | 0.18 | 99.6480 | 99.6304 |
方差来源 | 平方和 | 自由度 | 均方 | F值 | P值 | 显著水平 |
---|---|---|---|---|---|---|
模型 | 1.96×10-1 | 6 | 3.20×10-2 | 33.24 | <0.0001 | 显著 |
线性混合 | 1.50×10-1 | 2 | 7.50×10-2 | 77.25 | <0.0001 | 显著 |
X1X2 | 2.47×10-3 | 1 | 2.47×10-3 | 2.56 | 0.1443 | 不显著 |
X1X3 | 2.50×10-2 | 1 | 2.50×10-2 | 26.16 | 0.0006 | 显著 |
X2X3 | 1.20×10-2 | 1 | 1.20×10-2 | 12.24 | 0.0067 | 显著 |
X1X2X3 | 6.45×10-3 | 1 | 6.45×10-3 | 6.69 | 0.0294 | 显著 |
失拟项 | 3.37×10-3 | 4 | 8.42×10-4 | 0.79 | 0.5772 | 不显著 |
残差 | 8.68×10-3 | 9 | 9.65×10-4 | — | — | — |
总和 | 2.04×10-1 | 15 | — | — | — | — |
方差来源 | 平方和 | 自由度 | 均方 | F值 | P值 | 显著水平 |
---|---|---|---|---|---|---|
模型 | 1.96×10-1 | 6 | 3.20×10-2 | 33.24 | <0.0001 | 显著 |
线性混合 | 1.50×10-1 | 2 | 7.50×10-2 | 77.25 | <0.0001 | 显著 |
X1X2 | 2.47×10-3 | 1 | 2.47×10-3 | 2.56 | 0.1443 | 不显著 |
X1X3 | 2.50×10-2 | 1 | 2.50×10-2 | 26.16 | 0.0006 | 显著 |
X2X3 | 1.20×10-2 | 1 | 1.20×10-2 | 12.24 | 0.0067 | 显著 |
X1X2X3 | 6.45×10-3 | 1 | 6.45×10-3 | 6.69 | 0.0294 | 显著 |
失拟项 | 3.37×10-3 | 4 | 8.42×10-4 | 0.79 | 0.5772 | 不显著 |
残差 | 8.68×10-3 | 9 | 9.65×10-4 | — | — | — |
总和 | 2.04×10-1 | 15 | — | — | — | — |
方差来源 | 平方和 | 自由度 | 均方 | F值 | P值 | 显著水平 |
---|---|---|---|---|---|---|
合计 | 8.43×10-5 | 15 | — | — | — | — |
模型 | 7.97×10-5 | 5 | 1.42×10-5 | 30.3 | < 0.0001 | 显著 |
线性混合 | 3.88×10-5 | 2 | 1.94×10-5 | 41.5 | < 0.0001 | 显著 |
X1X2 | 3.11×10-5 | 1 | 3.11×10-5 | 66.5 | < 0.0001 | 显著 |
X1X3 | 1.89×10-6 | 1 | 1.89×10-6 | 4.04 | 0.0722 | 不显著 |
X2X3 | 7.86×10-6 | 1 | 7.86×10-6 | 16.8 | 0.0021 | 显著 |
失拟项 | 2.53×10-6 | 5 | 5.06×10-7 | 1.18 | 0.4292 | 不显著 |
残差 | 4.67×10-6 | 10 | 4.67×10-7 | — | — | — |
方差来源 | 平方和 | 自由度 | 均方 | F值 | P值 | 显著水平 |
---|---|---|---|---|---|---|
合计 | 8.43×10-5 | 15 | — | — | — | — |
模型 | 7.97×10-5 | 5 | 1.42×10-5 | 30.3 | < 0.0001 | 显著 |
线性混合 | 3.88×10-5 | 2 | 1.94×10-5 | 41.5 | < 0.0001 | 显著 |
X1X2 | 3.11×10-5 | 1 | 3.11×10-5 | 66.5 | < 0.0001 | 显著 |
X1X3 | 1.89×10-6 | 1 | 1.89×10-6 | 4.04 | 0.0722 | 不显著 |
X2X3 | 7.86×10-6 | 1 | 7.86×10-6 | 16.8 | 0.0021 | 显著 |
失拟项 | 2.53×10-6 | 5 | 5.06×10-7 | 1.18 | 0.4292 | 不显著 |
残差 | 4.67×10-6 | 10 | 4.67×10-7 | — | — | — |
名称 | 目标 | 最小限制 | 最大限制 | 重要系数 |
---|---|---|---|---|
环丁砜占比 | 范围值 | 0.22 | 0.27 | 1 |
MDEA占比 | 范围值 | 0.5 | 0.55 | 1 |
H2O占比 | 范围值 | 0.18 | 0.24 | 1 |
H2S脱除率 | 最大化 | 99.568% | 99.9722% | 5 |
总硫脱除率 | 最大化 | 99.1331% | 99.868% | 5 |
名称 | 目标 | 最小限制 | 最大限制 | 重要系数 |
---|---|---|---|---|
环丁砜占比 | 范围值 | 0.22 | 0.27 | 1 |
MDEA占比 | 范围值 | 0.5 | 0.55 | 1 |
H2O占比 | 范围值 | 0.18 | 0.24 | 1 |
H2S脱除率 | 最大化 | 99.568% | 99.9722% | 5 |
总硫脱除率 | 最大化 | 99.1331% | 99.868% | 5 |
项目 | 原配方 | 优化后 |
---|---|---|
脱硫剂配方 | MDEA∶H2O=40∶60 | 环丁砜∶MDEA∶H2O=23.3∶54.6∶22.1 |
出料气H2S含量/mg·m-3 | 37 | 14.4 |
出料气总硫含量/mg·m-3 | 121 | 78.5 |
H2S脱除率/% | 99.91 | 99.964 |
总硫脱除率/% | 99.74 | 99.833 |
项目 | 原配方 | 优化后 |
---|---|---|
脱硫剂配方 | MDEA∶H2O=40∶60 | 环丁砜∶MDEA∶H2O=23.3∶54.6∶22.1 |
出料气H2S含量/mg·m-3 | 37 | 14.4 |
出料气总硫含量/mg·m-3 | 121 | 78.5 |
H2S脱除率/% | 99.91 | 99.964 |
总硫脱除率/% | 99.74 | 99.833 |
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