1. Using one of the crude oils in Appendix D, make TBP and gravity midpercent curves. From these curves and the crude oil fraction specifications in Tables 4.1 or 4.2, make a complete material balance around an atmospheric crude still. Assume a 100,000 BPCD crude oil feed rate to the atmospheric crude still. Make the balances to the nearest pound.

2. For the crude oil used in problem 1, make sulfur and nitrogen weight balances for the feed and products to the nearest pound.

3. Using the high-boiling fraction from problem 1 as feed to a vacuum pipe still, make an overall weight balance and nitrogen and sulfur balances. Assume the reduced crude bottoms stream from the vacuum pipe still has an initial TBP boiling point of 1050 °F (566°C).

4. Estimate the calendar day utility and chemical requirements for the crude oil desalter, atmospheric pipe still, and vacuum pipe still of problems 1 and 3.

5. Calculate the Watson characterization factors and U.S. Bureau of Mines Correlation Indices for the crude oil and product streams from problems 1 and 3.

6. Estimate the carbon content of the reduced crude bottoms product of problem 3. Express as weight percent Conradson carbon.

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Answer 1From the crude distillation dataplot TBP and gravit... View the full answer