PROBLEMS/FAILURES IN AN AMMONIA PLANT
The paper addresses the various problems/failures experienced in the CO2 removal system of an Ammonia Plant in a short span operation of less than one year. Probable causes of failures and the corrective steps taken to avoid such failures in future, have also been discussed.
V.K. BALI and A.K. MAHESHWARI
IFFCO Aonla Unit, Bareilly
Uttar Pradesh, India
INTRODUCTION
Located at Bareilly, Uttar Pradesh in India, Indian Farmers Fertiliser Cooperative Ltd, operates two Ammonia plants, each with a name plate capacity of 1350 MTPD of ammonia. Both of these plants have been designed based on Haldor Topsoe technology with steam reforming of natural gas and/or naphtha. Ammonia-1 is designed for natural gas feed stock and was commissioned in 1988. Ammonia-2 was commissioned in December,1996 and is designed for both Natural Gas & Naphtha feed stocks. The Benfield process was selected for the CO2 removal system of Ammonia-1 which has been converted into Giammarco- Vetrocoke (GV) dual activator system in April,1997 for achieving lower CO2 slip and energy savings. For Ammonia-2 plant, the GV dual activator low energy process has been selected for CO2 removal system from the design stage. The paper describes the problems/failures experienced in the CO2 removal system of Ammonia-2 plant during very first year of its operation.
V.K. BALI and A.K. MAHESHWARI
IFFCO Aonla Unit, Bareilly
Uttar Pradesh, India
INTRODUCTION
Located at Bareilly, Uttar Pradesh in India, Indian Farmers Fertiliser Cooperative Ltd, operates two Ammonia plants, each with a name plate capacity of 1350 MTPD of ammonia. Both of these plants have been designed based on Haldor Topsoe technology with steam reforming of natural gas and/or naphtha. Ammonia-1 is designed for natural gas feed stock and was commissioned in 1988. Ammonia-2 was commissioned in December,1996 and is designed for both Natural Gas & Naphtha feed stocks. The Benfield process was selected for the CO2 removal system of Ammonia-1 which has been converted into Giammarco- Vetrocoke (GV) dual activator system in April,1997 for achieving lower CO2 slip and energy savings. For Ammonia-2 plant, the GV dual activator low energy process has been selected for CO2 removal system from the design stage. The paper describes the problems/failures experienced in the CO2 removal system of Ammonia-2 plant during very first year of its operation.
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