Thermodynamically efficient distillation: NGL fractionation

Author

Manish Goyal

Abstract

"Natural gas liquids (NGL) are produced in significant quantities from gas wells. Their fractionation to produce ethane, propane, butanes and gasoline is an important gas processing operation. This work tries to improve the NGL fractionation process by designing a more thermodynamically efficient and more economical process.

The design is for a one hundred thousand barrels per day (1x10⁵ bbl/day) feed for 8000 hrs per year of operation. Hysys 1.5 was used for all the process synthesis and thermodynamic calculations. Questimate was used to cost the equipment designed and sized using Hysys.

Various concepts like distributed distillation, recycle coupling, partial interreboilers, intercondensers, thermomechanically integrated rectification, divided wall (petlyuk) columns and dephlegmators were incorporated in the design, and recommendations have been made based on the economic and thermodynamic impact of these modifications. Economic savings of 42.0 % on utility have been achieved in the recommended design"--Abstract, page iii.

Advisor(s)

Manley, David B.

Committee Member(s)

Forciniti, Daniel
Fu, Yongjian

Department(s)

Chemical and Biochemical Engineering

Degree Name

M.S. in Chemical Engineering

Comments

Accompanying CD-ROM, available at Missouri S&T Library, contains source code, documentation, figures, and animations.

Publisher

University of Missouri--Rolla

Publication Date

Summer 2000

Pagination

ix, 89 pages

Note about bibliography

Includes bibliographical references (pages 87-88).

Rights

© 2000 Manish Goyal, All rights reserved.

Document Type

Thesis - Restricted Access

File Type

text

Language

English

Thesis Number

T 7797

Print OCLC #

45686532

Electronic OCLC #

1121203028

Recommended Citation

Goyal, Manish, "Thermodynamically efficient distillation: NGL fractionation" (2000). Masters Theses. 1948.
https://scholarsmine.mst.edu/masters_theses/1948