Energy Saving in Urea Plant by Modification in Heat Exchangers Process

Abstract

Energy is the prime mover of economic growth and is vital to the sustenance of a modern economy. Improvement in energy efficiency reduces cost of production & results in environmental benefits, e.g. mitigation of global warming by way of less emission of Green house gases in the atmosphere. Over the years several energy conservation measures have been taken towards reduction in specific energy consumption and improvement in energy efficiency. The efforts' resulted in reduction in specific energy consumption from 6.27G. Cal/tone of Urea to 5.421 G.Cal/tone of Urea in 2015-16 as shown in the Graph No 1 & 2 with energy & down time. Further a major modification of all plants is under way. Most of the schemes have been implemented in 2012 and the further modifications expected to result again reduction of energy consumption for ammonia and Urea plants. This paper described some of the modification in urea plants implemented recently in May/June 2016.