High Temperature Transformation of Tar-Asphaltene Components of Bituminous Sand Bitumen by Yerzhan Imanbayev in Juniper Online Journal Material Science in - Juniper Publishers
Transformations of high-molecular-weight compounds of bituminous sands
natural bitumen under the heat treatment are studied. Cracking and
extraction of Kazakhstan’s bituminous sand bitumen were carried out.
Thermal processing of natural bitumen leads to a general change in the
chemical composition of components and an increase in the output of
certain factions. Molecular structures of the tar and asphaltene
components of natural bitumen are built from the data of elemental
analysis, 1HNMR spectroscopy and molecular weight. The content of oil,
tar and asphaltenes were determined and the elemental composition of
tar-asphaltene compounds was evaluated. The high molecular compounds
were presented as giant molecules containing small aromatic islands with
some linked by aliphatic chains.
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