Abstract
Raw LPG extraction plants, designed prior to the 73/74 steep energy rise, offer opportunities for application of energy saving concepts.
Many plants designed to recover raw LPG from associated gases and built prior to 1973/74 are relatively energy inefficient compared to current standards. This paper deals with energy savings that may be effected for one such plant.
Three basic ideas are evaluated:-
o Use of Multi-Component Chilling (MCC).
o Addition of an Expander.
o Heat Recovery from Gas Turbine Exhausts.
The economics show that the Expander plant has the lowest payback time. Further based on fuel costs continually rising this decade, Gas Turbine Exhaust heat recovery, whereby waste heat is converted to useable power, is illustrated to be economically attractive.
Carpenter, M. J.; Barnwell, J. (1982). Application of Energy Saving Concepts to LPG Recovery Plants. Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu). Available electronically from
https : / /hdl .handle .net /1969 .1 /94244.