Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/132124
Title: PROCESS RETROFITTING VIA INTEGRATION: METHODOLOGY AND APPLICATIONS
Authors: NIU WENDOU
Keywords: Process Retrofit; Process Intensification; Process Design; Isopropyl; Reactive Distillation; Membrane Absorption Hybrid
Issue Date: 29-Jul-2016
Source: NIU WENDOU (2016-07-29). PROCESS RETROFITTING VIA INTEGRATION: METHODOLOGY AND APPLICATIONS. ScholarBank@NUS Repository.
Abstract: In this doctoral research, a heuristic-based methodology for retrofitting with focus on process integration is developed in this thesis. It consists of four steps: (1) Base case analysis, retrofit target and contributing units; (2) Generation of an improved solution without capital investment; (3) Generation of integrated solution(s); and (4) Comparison of retrofit solutions and selection. The methodology is applied to retrofit a conventional isopropanol (IPA) process; two retrofit designs are developed. One reduces the manufacturing cost by 12%, and the other reduces the manufacturing cost by 23%. The former retrofit scheme is further retrofitted to a process with two RDs, which has manufacturing cost similar to that of the latter. Finally, process retrofitting via hybridization is discussed. An amine absorption process for removal of CO2 and H2S retrofitted by adding membrane units to sweeten a new feedstock with increased CO2 content.
URI: http://scholarbank.nus.edu.sg/handle/10635/132124
Appears in Collections:Ph.D Theses (Open)

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