writing 2 summaries in 12 hours

CHEE 2010 – Homework Assignment No. 5

Due 3:00 pm February 9, 2017 (IN 12 HOURS)

Watch the first 3 minutes of the video and then answer the questions below:

http://www.youtube.com/watch?v=s64B-NNRxTA&feature=related

1. In 50-100 words, write a paragraph to summarize why (chemical) engineers are needed to turn algae into fuels/chemicals/value added products.

2. In 50-100 words, write a paragraph giving your opinion on one or more of the challenges in commercializing this technology.

This the Question I have written may help :

On industrial scale, salicylic acid (C7H6O3) is reacted with acetic acid (HC2H3O2) to produce aspirin (C9H8O4) and water. A fresh feed of acetic acid along with sulfuric acid (sulfuric acid is a catalyst) combines with a recycle stream and is fed to a reactor. The feed to the reactor (not the fresh feed) flows at 24.0 mol/min with 91.9 mol% acetic acid and the balance sulfuric acid. A second stream containing salicylic acid also enters the reactor. The fractional single pass conversion of acetic acid is 68%. The effluent contains sulfuric acid, acetic acid, salicylic acid, aspirin and water with a ratio of salicylic acid to aspirin of 1.2:1. The effluent is then sent to a separator. Two streams exit the separator, one containing all of the aspirin, salicylic acid and water, the other containing acetic acid and sulfuric acid (acid stream). The acid stream is partially purged and the remaining returns to the feed stream to be recycled.

a.      Determine the component molar flow rates of the effluent (mol/min).

b.      Determine the component molar flow rates of acetic acid and sulfuric acid in the fresh feed.

c.       What is the selectivity of the process assuming water is undesired and aspirin is desired?