A process for preparing aniline by direct amination of phenol withammonia in the vapor phase in the presence of a solid, heterogeneouscatalyst. It has been discovered that significant process improvement areobtained if the phenol feed to the reaction is vaporized in the absence ofsubstantial amounts of ammonia.

• To Design a steady state plant for the production of Aniline by Halcon process• To propose a method for the production that gives maximum yield meet the

demand of Aniline in Pakistan.• Optimizing a process that provides sustainable development

PRODUCTION OF ANILINE FROM AMMONYLSIS OF PHENOL PROJECT ADVISOR: MR. UMAIR ASLAM

1. The process is divided into feed preparation, reactor and purification.2. For the preparation of feed, both phenol and ammonia are vaporized

by two streams i.e. effluent stream and external heat source.3. After achieving reactor required temperature, mixed streams are fed to

adiabatic fluidized bed reactor where reaction takes place and by ammonylsis of phenol aniline formed.

4. Through side reactions, Diphenylamine and water are produced with considerable amounts of unreacted Ammonia& Phenol.

5. After cooling the product stream, NH3 is separated through knockout drum and effluent stream is then fed to dehydration unit where water is also removed.

6. Phenol-Aniline is then introduced in Azeotropic distillation from where 99.9% pure Aniline is recovered from top of distillation column.

ABSTRACT

PROCESS FLOW DIAGRAM METHADOLOGY

OBJECTIVES

APPLICATIONS

SUMMARY

Aniline a valuable chemicalfeedstock used in themanufacture of isocyanates,vulcanization accelerators,fuel additives, dyes, andmany other products. Nearly85% of aniline is convertedinto methylene diphenyldiisocyanate worldwide.

WORLD’S DEMAND

REFERENCES Kent and Riegel’s Handbook of Industrial Chemistry and Biotechnology.

Springer Science & Business Media, 2007. US Patent # “pat3272865.” & US Patent # “pat3682782.”

The largest application of aniline is for the preparation of Methylene Dianiline

Manufacture of precursors to polyurethane and other industrial chemicals

The drugs prepared from aniline is paracetamol (acetaminophen, Tylenol)

The principal use of aniline in the dye industry is as a precursor to indigo, the blue of blue jeans

It is used to manufacture rubber (9%), herbicides (2%), and dyes and pigments (2%)

Feed vaporization

Feed mixing Ammonylsis

Reaction

Separation Purification

33%

25%

17%

8%

7%

6% 2%1%1% China

WesternEuropeUnitedStatesJapan

South Korea

CentralEurope

DEPARTMENT OF CHEMICAL ENGINEERING, UET LAHORE

G R O U P M E M E B E R S

• 2012-CH-13Zaryab Azeem

• 2012-CH-29M. Assad

• 2012-CH-33M. Umar Akhtar

• 2012-CH-37M. Farhan

• 2012-CH-39Ismail Zahoor

• 2012-CH-69Usman Hamid