Asphaltene fractionation based on adsorption onto calcium carbonate: Part 1. Characterization of sub-fractions and QCM-D measurements
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- 作者：Sreedhar Subramanian ; sreedhar.subramanian@ntnu.no" class="auth_mail" title="E-mail the corresponding author ; Sé ; bastien Simon ; Bicheng Gao ; Johan Sjö ; blom
- 关键词：Asphaltene fractionation ; Elemental analysis ; FTIR ; QCM-D
- 刊名：Colloids and Surfaces A: Physicochemical and Engineering Aspects
- 出版年：2016
- 出版时间：20 April 2016
- 年：2016
- 卷：495
- 期：Complete
- 页码：136-148
- 全文大小：3129 K
文摘
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New procedure developed to fractionate asphaltenes.
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Asphaltene sub-fractions differ in amount of carbonyl, carboxylic acid or derivative groups present in them.
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Higher adsorption on stainless steel observed for sub-fractions with more carbonyl, carboxylic acid or derivative groups.
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Interaction between sub-fractions limits adsorption of unfractionated asphaltenes.