Next Article in Journal
The Information Geometry of Sparse Goodness-of-Fit Testing
Next Article in Special Issue
Numerical Study of Entropy Generation in Mixed MHD Convection in a Square Lid-Driven Cavity Filled with Darcy–Brinkman–Forchheimer Porous Medium
Previous Article in Journal
On the Existence and Uniqueness of Solutions for Local Fractional Differential Equations
Previous Article in Special Issue
On Thermodynamics Problems in the Single-Phase-Lagging Heat Conduction Model
Open AccessArticle

Energy Efficiency Improvement in a Modified Ethanol Process from Acetic Acid

Department of Chemical Engineering, Dong-A University, Busan 604-714, Korea
Academic Editor: Brian Agnew
Entropy 2016, 18(12), 422;
Received: 16 September 2016 / Revised: 21 November 2016 / Accepted: 21 November 2016 / Published: 24 November 2016
(This article belongs to the Special Issue Advances in Applied Thermodynamics II)
For the high utilization of abundant lignocellulose, which is difficult to directly convert into ethanol, an energy-efficient ethanol production process using acetic acid was examined, and its energy saving performance, economics, and thermodynamic efficiency were compared with the conventional process. The raw ethanol synthesized from acetic acid and hydrogen was fed to the proposed ethanol concentration process. The proposed process utilized an extended divided wall column (DWC), for which the performance was investigated with the HYSYS simulation. The performance improvement of the proposed process includes a 27% saving in heating duty and a 41% reduction in cooling duty. The economics shows a 16% saving in investment cost and a 24% decrease in utility cost over the conventional ethanol concentration process. The exergy analysis shows a 9.6% improvement in thermodynamic efficiency for the proposed process. View Full-Text
Keywords: exergy analysis; energy saving; ethanol production exergy analysis; energy saving; ethanol production
Show Figures

Figure 1

MDPI and ACS Style

Kim, Y.H. Energy Efficiency Improvement in a Modified Ethanol Process from Acetic Acid. Entropy 2016, 18, 422.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Back to TopTop