Solvent demetallization of heavy petroleum feedstock using supercritical carbon dioxide with modifiers
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- 作者：Rustam N. Magomedova ; c ; Magomedov.rn@cet-mipt.ru" class="auth_mail" title="E-mail the corresponding author ; tetrationat@rambler.ru" class="auth_mail" title="E-mail the corresponding author ; Artem V. Pripakhayloa ; c ; Tatiana A. Maryutinaa ; b ; c
- 关键词：HPF ; heavy petroleum feedstocks ; scCO2 ; supercritical carbon dioxide ; SDA ; solvent deasphalting ; ROSE ; Residuum Oil Supercritical Extraction ; SCFs ; supercritical fluids ; SFE ; supercritical fluid extraction ; DAO ; deasphalted oil ; VR ; vacuum residue ; ICP-MS ; inductively coupled plasma mass spectrometry ; DE ; demetallization efficiency
- 刊名：The Journal of Supercritical Fluids
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：119
- 期：Complete
- 页码：150-158
- 全文大小：1376 K
文摘
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The effect of modifiers in scCO2 on the demetallization of vacuum residue is established.
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Methanol and o-xylene provide the highest concentration of metals in the extract.
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Ethyl acetate, n-heptane and toluene show a low selectivity towards metals.
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Increasing the toluene concentration in CO2 sharply increases extract yield.
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Toluene as modifier provides high demetallization efficiency at high extract yields.