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Considering the energy circumstances of Japan, it is very important that the heavy oils would be converted efficiently into clean lighter fuel oils. To refine with less affection for the environment, it is necessary to depress the yields of the coke, the lower valuable by-product. This goal would be achieved with very efficient heavy oil upgrading technology. On the development of the upgrading process, the reaction design based on the chemistry of heavy oils is an essential for the success. Although, as the heavy oils are infinite complex mixtures, the molecular structure, physical properties of aggregates, and reaction mechanisms are not clarified well so far. Those are very important for the better understandings of heavy oil, and the efficient development of the upgrading processes. The authors studied the properties and the behavior of aggregates in the international cooperative research project with Idemitsu Kosan Co., Ltd., Hokkaido University, Argonne National Laboratory, Pennsylvania State University, University of Alberta, and National Institute of Advanced Industrial Science and Technology (AIST) using theirs state of the art analytical techniques including molecular dynamics simulation, small angle neutron and X-ray scattering, and various mass spectrometry etc. In the current issue, the authors introduce some results of the project on the shape and size of the asphaltene aggregates and its behavior as well as the procedure for the average molecular structural analysis and the measurement of molecular weight. These results provided the fundamental technologies to develop the advanced heavy oil upgrading process.
一般社団法人日本エネルギー学会の論文
2007-10-20

アスファルテンの凝集にまつわる話題(<総説特集>アスファルテンの凝集)

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