PREPRATION OFAMMONIA

By sonam khan -
PROCESS FOR AMMONIA PRODUCTION

CHEMICAL REATION
     N2 + 2H3 = 2NH3                      H= -22.0 Kcal

RAW MATERIALS
  1. H2 from synthesis gas.
  2. N2 from air addition in susthesis gas process or from air liquifaction process.
PROCESS DISCRIPTION

Ammonia synthesis gas(3 moles pure H2 : 1 mole pure N2) is +
is compressed to the operating pressure (100-1000 atms,depending on conversion required). It is through a filter to remove compression oil and additionally through a high tempreature guard convertor( converts CO and CO2 to CH4 and removes traces of H2O,H2S,P ans As). This is done by catalyst and suitable materials.
The relatively cool gas is added along the outside if the converter tube walls to provide cooling so that carbon stell can be used for the thick wall pressure vessels and the internal tubes.The preheated gas flows next through the inside of tube which contains promoted porous iron catalyst at 500-550 celcius.The NH3 product ,with an 8-30% conversion depending on process conditions,is removed by condensastion ,first with water coooling and then NH3 refrigeration .The unconverted N2,H2 mixture is recirculated to allow an 85-95% yeild.

Comments

Post a Comment

Popular posts from this blog

iBPS conducts Written Exam (CWE) 2012 for Clerical Cadre|ibps Allahabad Banks / Andhra Bank/ Bank of Baroda/ Bank of India/ Bank of Maharashtra/ Canara Bank/ Central Bank of India/ Corporation Bank/ Dena Bank/ IDBI Bank/ Indian Bank/ Indian Overseas Bank/ Oriental Bank of Commerce/ Punjab National Bank/ Punjab & Sind Bank/ Syndicate Bank/ Union Bank of India/ United Bank of India/ UCO Bank/ Vijaya Bank

By -
BPS conducts Written Exam (CWE) 2012 for Clerical Cadre IBPS, an autonomous body, has been authorised by the IBA and has received mandates from 19 Public Sector Banks to conduct the recruitment of Clerical Cadre posts twice in a year for their requirements. A Common Written Examination (CWE) will be conducted tentatively in December 2012. by the IBPS as a pre-requisites for selection of personnel for Clerical Cadre posts in the following 20 Public Sector Banks (Some other private banks are also accepting IBPS CWE Score card for their recruitment) Allahabad Banks / Andhra Bank/ Bank of Baroda/ Bank of India/ Bank of Maharashtra/ Canara Bank/ Central Bank of India/ Corporation Bank/ Dena Bank/ IDBI Bank/ Indian Bank/ Indian Overseas Bank/ Oriental Bank of Commerce/ Punjab National Bank/ Punjab & Sind Bank/ Syndicate Bank/ Union Bank of India/ United Bank of India/ UCO Bank/ Vijaya Bank Those will be successful in the Common Written Exam (CWE) will be given a ...
Read more

SRM University Admissions Notice 2013 for International Candidates,SRM University International Admissions Notice 2013 ,Eligibility for SRM University admissions 2013 ,Courses Offered at SRM University ,SRM University International Admissions 2013 Important dates

By -
Image
SRM University International Admissions Notice 2013 Students who want to get admissions in SRM University for the various courses offered at the university under International category are here by informed that the SRM University Admissions department has announced the schedule for SRM University International admissions for the academic year 2013-13. Students who are eligible and Interested to apply can apply for SRM University International Admissions 2013. Eligibility for SRM University admissions 2013 : All Foreign Students, Non Resident Indians(NRIs) and NRI Sponsored students are eligible for SRM International admissions 2013 . Admissions will be based Purely on the Performance in 10+2 or its equivalent examination. Students who are applying Under International students category for the academic year 2013-14 need not take SRM Entrance Exam (SRMEEE 2013). Foreign nationals, PIO card holders, OCI (Dual citizens), NRI students, and NRI sponsored stud...
Read more