1) 2-stage extraction
二段抽提
1.
To maximize the production of high added-value microcrystal wax, the existing 150,000 TPY super-critical butane deasphalting unit whose major product was FCC feedstock has been revamped into a 180,000 TPY propane deasphalting unit using 2-stage extraction-settlement process.
18 Mt/a丙烷脱沥青装置,改造采用脱沥青油二段抽提-沉降工艺,核心设备抽提塔应用清华大学开发的溶剂脱沥青高效萃取塔,几年来,装置运行安全平稳,产品轻、重脱沥青油的收率高且质量好,剂耗、装置能耗等技术经济指标均较理想。
2) two-stage extraction and sedimentation separation technology
二段抽提与沉降
3) subsampling
二段抽样
4) butadiene extraction
丁二烯抽提
1.
3-BD both domestic and overseas has been increasing yearly, it is very important to have comparative analysis of the butadiene extraction technology and to conduct the research on energy saving.
3-BD)的需求量都逐年增长这一事实,进行丁二烯抽提工艺的对比分析和节能优化研究具有重要的现实意义。
补充资料：6抽提溶剂油
6(号)抽提溶剂汽油主要成分为C6-C8脂肪烃，分子式CH3(CH2)4-6CH3。水白色透明液体，相对密度(20 ℃／4℃)0.655-0.681。易溶于有机溶剂，难溶于水。挥发速度快，化学性质稳定。易燃，无毒。
用作快干溶剂和稀释剂。贮存于阴凉、通风、干燥的库房内，远离火种、热源。
用作快干溶剂和稀释剂。贮存于阴凉、通风、干燥的库房内，远离火种、热源。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条