molar flow rate., Chemical Engineering

Assignment Help:
100 mol/hr of methane reacts with steam to produce CO2 in a main reaction of the reformer. The amount of steam used is 12.5% excess based on this main reaction. Some of the methane is also converted to CO in the reformer. The total conversion of methane is 89.1% while the yield of CO2 is found to be 78%. The effluent from the reformer is sent to the converter where all of the CO is selectively burnt to CO2 in a stream of 8.6% excess air.


The resulting product stream from the converter is mixed with a fresh make-up feed of CO2 so that a molar ratio of 3 is obtained for H2 to CO2 in the mixed product. This mixed stream is then further combined with a recycle stream before entering the methanol synthesis reactor. In the methanol synthesis reactor, CO2 reacts with H2 to give methanol. A fractional conversion of 51.1% is achieved in a single pass of the reactor. The reactor product is sent to a condenser that separates all of the methanol and water from the other components. The aqueous methanol product contains only methanol and water while the second stream from the condenser contains the remaining components that are split into a purge and a recycle. This second stream is analyzed and found to contain 38.8 mol% nitrogen.


Solve the molar flow rates of all the components in the process and then choose the correct response from the choice below.
Answer

the recycle/purge mole ratio is 13.69
the make-up CO2 flow s 29.9 mol/h
mole ratio of CH3OH/water from condenser is 0.653
Two choices, A and B, are correct
The three A-B-C choices are all correct

Related Discussions:- molar flow rate.

Conductivity of a conductor, In what important respect does the conductivit...

In what important respect does the conductivity of a conductor differ from that of an intrinsic Semiconductor.           It is well known that the conductivity of a conductor i

Design the manufacture of cellulose acetate, How to design a reaction vesse...

How to design a reaction vessel for esterification reaction

Refractoriness under load (rul), Refractoriness under load (RUL): This rep...

Refractoriness under load (RUL): This represents the resistance of a refractory material to the combined efforts of heat and load. RUL is the temperature at which the deformation

Numerical method, Figure P9.9 shows three reactors linked by pipes. As indi...

Figure P9.9 shows three reactors linked by pipes. As indicated, the rate of transfer of chemicals through each pipe is equal to a flow rate (Q, with units of cubic meters per secon

X-ray, #explain the process of x-ray production..

#explain the process of x-ray production..

Explain polymerisation vinyl chloride and its applications, Explain polymer...

Explain polymerisation vinyl chloride and its applications. PVC and its applications - It is acquired from polymerisation of vinyl chloride in the presence of a catalyst as per

Laboratory staff and students, Laboratory staff and students Give an ac...

Laboratory staff and students Give an account of the permanent staff and students using the lab and for what purposes. Here you may use the concept of Laboratory Investigation

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