Extraction of Coal Tar Distillate by Supercritical n-Pentane: A Study on Dissolving Capacity and Selectivity
Extraction of Coal Tar Distillate by Supercritical n-Pentane: A Study on Dissolving Capacity and Selectivity
复制标题
超临界正戊烷萃取煤焦油馏分：溶解能力和选择性研究
DOI：
10.1021/acs.energyfuels.5b00101
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发表时间：
2015-05
期刊：
影响因子：
5.3
通讯作者：
Fan, Maohong
中科院分区：
文献类型：
--
作者：
Zhang, Shengjuan;Zhang, Haiyong;Zhang, Fan;Fan, Maohong
采用超临界流体萃取技术分离煤焦油馏分中的组分。采用两个经验公式估算萃取率(溶解能力指标)和萃取物中各主要组分的浓度(选择性指标)。采用均匀设计安排实验，对公式进行了验证，得到了模型常数。实验条件为：超临界正戊烷为溶剂，温度为490~600K，压力为3.5~9.0 Mpa。结果表明，大多数非极性组分可被超临界正戊烷完全萃取，而极性较强的组分不容易溶于溶剂，因此需要较高的溶解温度(600K)。得到了获得较高选择性的萃取条件。超临界正戊烷作为萃取剂对极性碳的分离具有明显的优势。
A supercritical fluid extraction (SFE) process for separating components in a coal tar distillate was conducted. Two empirical equations were adopted to estimate the extraction yield (indicator for dissolving capacities) and concentration of each major component in the extraction product (indicator for selectivity). Experiments arranged by uniform design have been performed to verify the formulas and obtain the model constants. The experiments were carried out under the conditions of 490–600 K and 3.5–9.0 MPa, with supercritical n-pentane being a solvent. The results have demonstrated that most of the nonpolar components can be completely extracted by supercritical n-pentane, while the components with significant polarities cannot be easily dissolved in the solvent, and thus, a high dissolving temperature (600 K) was needed. The extraction conditions for achieving relatively high selectivity were obtained. Supercritical n-pentane as an extracting agent exhibits obvious advantages for separation of polar c...
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影响因子：
3.9
作者：
Zer-Ran Yu;Bhajmohan Singh;S. Rizvi;J. Zollweg
通讯作者：
Zer-Ran Yu;Bhajmohan Singh;S. Rizvi;J. Zollweg
影响因子：
7.5
作者：
M. Subramanian;F. V. Hanson
通讯作者：
M. Subramanian;F. V. Hanson
影响因子：
6.1
作者：
Lang, QY;Wai, CM
通讯作者：
Wai, CM
影响因子：
--
作者：
Yihui Ding;Hang-Chang Chen;Dong-fei Wang;Weiguo Ma;Jin-feng Wang;Deping Xu;Yonggang Wang
通讯作者：
Yihui Ding;Hang-Chang Chen;Dong-fei Wang;Weiguo Ma;Jin-feng Wang;Deping Xu;Yonggang Wang
DOI：
10.1021/i200029a038
发表时间：
1985-01-01
期刊：
INDUSTRIAL & ENGINEERING CHEMISTRY PROCESS DESIGN AND DEVELOPMENT
影响因子：
--
作者：
COTTERMAN, RL;PRAUSNITZ, JM
通讯作者：
PRAUSNITZ, JM