Chemical engineering - process design, coursework, Other Subject

Assignment Help:
Problem
Styrene can be produced by the reactions:
Ethylbenzene ! Styrene+H2
Ethylbenzene ! Benzene+Ethylene
Ethylbenzene+H2 ! Toluene+CH4
The reactions take place at 600C and 1.7 bar. We want to produce 100 mol
h of styrene. The market prices
are 22 £/mol for styrene, 10 £/mol for benzene and 7 £/mol for toluene. The ethylbenzene feed stream
contains 2% benzene and costs 16 £/mol. Fuel price is £10 for 106 cal. Assume that fuel components
have normal boiling points larger than 50C. For the product distribution, the following correlations have
been determined experimentally by chemists:
mol Benzene
mol Styrene = 0:333x??0:215x2+2:547x3
mol Toluene
mol Styrene = 0:084x??0:264x2+2:638x3
where x is the ethylbenzene conversion.
Determine and justify the following decisions (remember: think as an engineer!):
1. Should the above process be continuous or batch?
2. Based purely on the level 0 information, what is a reasonable upper bound on the conversion we
should consider?
3. Do we need feed purification?
4. Do we use gas recycle and purge stream(s)?
5. What is the number of product streams?
6. Draw the input-output flowsheet.
7. Develop the overall material balances for the input-output structure as a function of the clearly identified
design variable(s).
8. Plot the economic potential as a function of the design variables.
9. Above what conversion does the above process become unprofitable?
10. Produce a stream table for what you would consider to be a good conversion.

Related Discussions:- Chemical engineering - process design, coursework

Impact on decisions involving career development, Question: a) Define ...

Question: a) Define career structure and illustrate its importance in the career development process. b) Show the issues related to the concept of change and how these impa

Developing the counselling skills of teachers, There are some dimensions wh...

There are some dimensions which are common between teaching and counselling a) Based on your experience as teachers and the knowledge gathered in this module, analyse five dime

Management of Financial Institutions, Someone who visits the ATM once every...

Someone who visits the ATM once every 8 days, and who spends $25 per day. What is his average cash balance?

Distribution system design by using management science, The darby company m...

The darby company manufactures and distributes meters used to measure electric power consumption. the company started with a small production plant in El Paso and gradually built a

Environmental assessment act, Environmental Assessment Act: Environmental ...

Environmental Assessment Act: Environmental Assessment Act requires an environmental assessment of any major public sector undertaking that has the potential for significant envir

Science report, How do i make a variable table? URGENT PLS HELP!!!!!!!!!!? ...

How do i make a variable table? URGENT PLS HELP!!!!!!!!!!? okay so i have an science report that was due two weeks ago and schools starting on Monday so i have to send it to my te

Human resources management, effective human resources mangement depends upo...

effective human resources mangement depends upon soun reward system. explain

What is, technological interconnectedness

technological interconnectedness

Draw on the implications from phonology and orthography, During this course...

During this course, you have reflected on, read about, and discussed ways that phonology, orthography, morphology, and syntax can be used in lesson planning and teaching ELLs. In t

Population health management in rural communities, Population Health Manage...

Population Health Management in rural communities: Population health management (PHM) helps in the improvements of the population health. It is defined as the practical field

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd