User Account

All Pages

cheme hw, Chemical Engineering

Assignment Help:

Consider a process for the partial oxidation of benzene to produce maleic anhydride (C4H4O4) using air. There are two reactions to be concerned with: The first partially oxidizes the Benzene to produce maleic anhydride along with carbon dioxide and water.

The second, undesired reaction fully oxidizes the benzene. The process used is as follows:

1) Benzene Purification: The benzene flows into a pressurized still with water at 23.2

psia. The liquid in the still is 80% benzene by mass. Energy is supplied to keep the mixture at its boiling point (180°F) resulting in a vapor mixture of pure water (partial pressure = 7.52 psia) and pure benzene (partial pressure = 15.68 psia). The contaminates along with waste benzene flow out as a liquid.

2) Reaction: The vapor stream is mixed with enough air (T = 150°F, 1 atm, 50% relative humidity) to provide an 18/1 molar ratio of oxygen/benzene entering the reactor. At the exit to the reactor an analysis of the gasses (mole, dry basis) shows 0.76% C4H4O4, and 80.0% nitrogen.

3) Stripping: The exit gasses from the reactor flow into a water scrubber operating at 1 atm. Pure water enters the top of the column and the reactor outlet gas enters the bottom. The water "scrubs" out the maleic anhydride where it exits as a liquid at the bottom of the column with a concentration of (mole %) 12% C4H4O4, 88% water.

Exiting the top of the column as a gas are all of the unreacted benzene, oxygen, carbon dioxide, and nitrogen. This gas stream exits at 142°F saturated with water.

4) Drying: The liquid stream from the scrubber goes to a dryer where the water is driven off leaving pure maleic anhydride. What is (use pound moles):

a) The moles of benzene that are completely oxidized in the reactor per mole of benzene fed into the reactor? (i.e. the moles benzene used in the second reaction per mole fed)

b) The pounds of water leaving the dryer per mole of benzene fed into the reactor?

c) The composition of the gas leaving the scrubber (mole percent, wet basis)?

d) The pounds of water added to the top of the scrubber per mole of benzene fed into the reactor?

Related Discussions:- cheme hw

Bakelite, Bakelite is a material based on the thermosetting phenol formald...

Bakelite is a material based on the thermosetting phenol formaldehyde resin. Produced by the reaction under heat and pressure of phenol (a toxic, colourless crystalline solid) and

Name of some common conducting materials, The various common conducting mat...

The various common conducting materials used are: 1)  Copper 2)  Aluminium 3) Tungsten

Examine a molecular model of compound, Which one of the following statement...

Which one of the following statements is correct? You may wish to examine a molecular model of this compound. 1. Carbon G is an asymmetric center and its configuration is R 2

What is burger vector, BURGER VECTOR The Burgers vector, often denoted ...

BURGER VECTOR The Burgers vector, often denoted by b, is a vector that shows the magnitude and direction of the lattice distortion of dislocation in a crystal lattice. The dire

Introduction to aspects of electrical maintenance, INTRODUCTION : Earlier ...

INTRODUCTION : Earlier in this course you have read about the requirements of laboratories. You also know that these requirements can be for consumable and non consumable nature

Give the properties and applications of teflon, Give the properties and app...

Give the properties and applications of Teflon. Teflon: This is acquired by the polymerisation of tetrafloourethylene. Properties: 1. This has good electrical, therma

Hardness control, how can i controll hardness in the boiler

how can i controll hardness in the boiler

Civil engieering, what is the advantages & disadvanteges of road ways

what is the advantages & disadvanteges of road ways

Derive the ultimate primary controller gain, Consider the cascade loop as s...

Consider the cascade loop as shown below: i)   Specify the inner-loop gain such that the damping coefficient of the closed loop is equal to 0.4 ii)  Derive the ultimate

Provision for services-gas, Normal 0 false false false fals...

Normal 0 false false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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