Engineering, 27.12.2019 07:31 tsbrunson13
The composition of the feed to a debutaniser is given below. make a preliminary design for a column to recover 98 per cent of the n-butane overhead and 95 per cent of the isopentane from the column base. the column will operate at 14 bar and the feed will be at its boiling point. use the short-cut methods and follow the procedure set out below. use the de priester charts to determine the relative volatility. the liquid viscosity can be estimated using the data given in appendix d.
(a) investigate the effect of reflux ratio on the number of theoretical stages. (b) select the optimum reflux ratio. (c) determine the number of stages at this reflux ratio. (d) estimate the stage efficiency. (e) determine the number of real stages. (f) estimate the feed point. (g) estimate the column diameter.
feed composition (kg/h):
propane c3 (910 kg/h)
isobutane i-c4 (180 kg/h)
n-butane n-c4 (270 kg/h)
isopentane i-c5 (70 kg/h)
normal pentane n-c5 (90 kg/h)
normal hexane n-c6 (20 kg/h)
Answers: 3
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Engineering, 04.07.2019 18:10
Which of the following refers to refers to how well the control system responds to sudden changes in the system. a)-transient regulation b)- distributed regulation c)-constant regulation d)-steady-state regulation
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True or false (explain) (110)[111] is a slip system in bcc metals . the {111} family in fcc contains 8 planes. resolved shear stress (rss) in single crystals is just related to the applied stress. critical resolved shear stress (crss) in single crystal metals is direct proportional to the number of defects in the structure
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Engineering, 04.07.2019 18:20
What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.
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The composition of the feed to a debutaniser is given below. make a preliminary design for a column...
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