Research Progress of Separation and Catalytic Cracking of Medium-low Temperature Coal Tar
As an important primary chemical product,medium-low temperature coal tar plays an important strategic role in supplementing petroleum resources and strengthening comprehensive energy security ability.In this paper,the development status and technical advantages of coal tar separation methods such as distillation/rectification,solvent extraction(supercritical extraction),column chromatography and low temperature co-solution are reviewed.And it is emphasized that the design,preparation and matching of catalysts in coal tar hydrogenation/catalytic cracking technology is one of the core technical problems in industrialization.
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