# 1 Which of the 3 principal types of flowsheets would one use to: a. give...

 

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# 1 Which of the 3 principal types of flowsheets would one use to: a. give a group of visiting chemical engineering students an overview of the process? b. make a preliminary capital cost estimate? c. trace down a fault in a control loop? # 2 Prepare the simplest principal type of flowsheet for the following process indicating the flowrate of the principal chemical components. A refinery system containing paraffins and a mixture of aromatics (benzene, toluene, xylene, and heavier aromatics) is extracted with a liquid solvent to recover the aromatics. The solvent and aromatics are split using distillation across 3 columns to purify B, T, and mixed xylenes in that order. paraffins 300,000 kg/h; benzene 100,000 kg/h; toluene 180,000 kg/h; xylene 70,000 kg/h; higher aromatics 40,000 kg/h. The solvent flow is 3:1 the aromatics flow. # 1 Which of the 3 principal types of flowsheets would one use to: a. give a group of visiting chemical engineering students an overview of the process? b. make a preliminary capital cost estimate? c. trace down a fault in a control loop? # 2 Prepare the simplest principal type of flowsheet for the following process indicating the flowrate of the principal chemical components. A refinery system containing paraffins and a mixture of aromatics (benzene, toluene, xylene, and heavier aromatics) is extracted with a liquid solvent to recover the aromatics. The solvent and aromatics are split using distillation across 3 columns to purify B, T, and mixed xylenes in that order. paraffins 300,000 kg/h; benzene 100,000 kg/h; toluene 180,000 kg/h; xylene 70,000 kg/h; higher aromatics 40,000 kg/h. The solvent flow is 3:1 the aromatics flow.