May 2008


Improve crude oil fractionation by distributed distillation

Heat-integrated distributed distillation in crude oil fractionation can reduce energy consumption and emissions

Haddad, H. N., URS Corp.; Manley, D. B., Missouri University of Science and Technology

Crude oil distillation is a large energy consumer and a large waste generator. However, through improved process thermodynamics, significant reductions in energy consumption and waste generation can be achieved. At current energy prices, energy savings alone justify investment needed for process commercialization. There is even a greater justification if economic cost of waste generation is accepted. New advanced integration and distributed distillation methods can offer many opportunities to existing refineries. Background. Crude oil distillation is the first processing operation in virtually all refineries. Fig. 1 is a typical refinery flow diagram, and the crude unit contains atmospheri

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