Abstract:

The different crude benzol hydro-refining and extractive distillation processes were compared, the factors of product quality, variety, recovery yield, energy consumption and investment were analyzed. In combination with the actual situation, the features of different crude benzol hydro-refining and extractive distillation processes were introduced. When constructing crude benzol hydro-refining system, many factors should be comprehensively considered, therefore low temperature hydro-refining process should be selected  firstly.