Improvement of the Deethanizing and Depropanizing Fractionation Steps in NGL Recovery Process Using Dividing Wall Column

Title
Improvement of the Deethanizing and Depropanizing Fractionation Steps in NGL Recovery Process Using Dividing Wall Column
Author(s)
이문용구웬롱[구웬롱]
Keywords
COUPLED DISTILLATION-COLUMNS; FACTORIAL DESIGN; OPTIMIZATION; SYSTEMS; SEQUENCES; CONFIGURATIONS; INTEGRATION; MIXTURES
Issue Date
201204
Publisher
SOC CHEMICAL ENG JAPAN
Citation
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, v.45, no.4, pp.285 - 294
Abstract
In this work, our aim is to utilize a dividing wall column to improve the performance of the deethanizing and depropanizing fractionation steps in natural gas liquid processing. Starting from an initial conventional column sequence, the initial designs of the conventional dividing wall column and a top dividing wall column are obtained by maintaining the number of trays. In succession, they are optimized to reduce the energy consumption using factorial design. The results show that the conventional dividing wall column and the top dividing wall column can offer many benefits to the system, e.g., curbing the operating cost including refrigeration cost, and minimizing the reboiler and condenser duty. Furthermore, by using a dividing wall column, both the purity of ethane and its recovery rate are increased. The influence of utility prices on the operating cost saving of the conventional and the top dividing wall columns is also investigated. In addition, to further enhance the dividing wall column performance, heating is integrated on the top and an interreboiling system is installed at the bottom section of the dividing wall column.
URI
http://hdl.handle.net/YU.REPOSITORY/28606
ISSN
0021-9592
Appears in Collections:
공과대학 > 화학공학부 > Articles
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