American Journal of Chemical Engineering
Volume 3, Issue 2-1, March 2015, Pages: 25-40
Received: Feb. 20, 2015;
Accepted: Mar. 24, 2015;
Published: May 9, 2015
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I. J. Otaraku, Department of Chemical Engineering, University of Port Harcourt, Port Harcourt, Nigeria
O. A. Vincent, Centre for Gas Refining and Petrochemicals, Institute of Petroleum Studies, University of Port Harcourt, Port Harcourt, Nigeria
The technical analysis carried out in this paper is aimed at dealing with element incorporation, structure generation and optimization of the gas-to-liquid (GTL) process. The GTL model developed did not include the desulphurization unit as well as the product upgrading unit. A detailed description of the sequential steps for analyzing the process is as follows: firstly, a base-case process is designed with parameters and operating conditions obtained from literature. Secondly, this flowsheet is simulated with computer-aided simulation package ASPEN Hysys V8.4 to evaluate the specific characteristics of the main equipment and streams entering and leaving units. Thirdly, the simulated base case was analyzed in terms of Thermal Efficiency (TE), Carbon Efficiency (CE) and product flow to upgrading. This process was carried out using the optimizer tool for steady-state modelling to account for multiple variables in the Hysys simulation with the aid of case studies to maximize a given objective function. This resulted in a CE of 82.41%, TE of 65.93% and a production of 19940 bbl/d of syncrude.
I. J. Otaraku,
O. A. Vincent,
Technical Analysis of the Natural Gas to Hydrocarbon Liquid Process, American Journal of Chemical Engineering. Special Issue:Developments in Petroleum Refining and Petrochemical Sector of the Oil and Gas Industry.
Vol. 3, No. 2-1,
2015, pp. 25-40.
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