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Techno-economic Analysis (techno-economic + analysis)

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Chemistry100%

Selected Abstracts

Techno-Economic Analysis of Hydrazine Hydrate Technologies

CHEMICAL ENGINEERING & TECHNOLOGY (CET), Issue 9 2010
P. Nikhitha
Abstract The increasing demand of current world production for hydrazine hydrate emphasizes the need to focus on the techno-economic analysis of the existing technologies. Three processes, namely the Raschig process, urea process, and peroxide-ketazine process, are chosen for technical analysis followed by cost estimation and economic assessment. The technical part involves the development of flow sheets, process design, carrying out of calculations as well as estimation of raw materials, labor, utilities, and process equipment by sizing and other sub-components. The economic part comprises the estimation of working capital, fixed capital investment, total capital investment, and total production costs. Economic parameters like net profits, rate of return, payback period, and break-even point are also estimated to perform economic analysis. The results obtained from technical analysis and economical feasibility studies show that the peroxide-ketazine-based hydrazine hydrate technology has clear advantages in terms of raw material consumption and economic competitiveness. [source]

Membrane reformer PEM cogeneration systems for residential applications,Part B: techno-economic analysis and system layout

ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING, Issue 3 2009
Stefano Campanari
Abstract This two-part paper investigates the performances and potential economic benefits of a membrane reformer (MREF)-based fuel cell cogeneration system, using polymer electrolyte membrane (PEM) fuel cells, applied to residential cogeneration. Part A of the work focuses on the thermodynamic analysis and simulation of the system at full and partial load conditions, discussing its performance by means of a sensitivity analysis carried out under different operating conditions. Part B presents the techno-economic analysis of the proposed system integrated into a real residential application, dealing with the energy savings and the economic balances, and proposes a preliminary design of the cogeneration unit. The higher electric efficiency of the innovative MREF system proposed in this work allows a yearly cost savings about 50% higher than cost savings allowed by fuel cell cogeneration units based on conventional fuel processors. Moreover, CO2 emissions savings, calculated for an average northern Italy single-family load, is about 1.6 tCO2/year. The paper also presents a proposed system layout, discussing the preliminary design of all the required components and analyzing with particular care the issues related to the heat recovery loop and to the arrangement of the system key component: the membrane reforming reactor. Copyright © 2009 Curtin University of Technology and John Wiley & Sons, Ltd. [source]

Techno-Economic Analysis of Hydrazine Hydrate Technologies

CHEMICAL ENGINEERING & TECHNOLOGY (CET), Issue 9 2010
P. Nikhitha
Abstract The increasing demand of current world production for hydrazine hydrate emphasizes the need to focus on the techno-economic analysis of the existing technologies. Three processes, namely the Raschig process, urea process, and peroxide-ketazine process, are chosen for technical analysis followed by cost estimation and economic assessment. The technical part involves the development of flow sheets, process design, carrying out of calculations as well as estimation of raw materials, labor, utilities, and process equipment by sizing and other sub-components. The economic part comprises the estimation of working capital, fixed capital investment, total capital investment, and total production costs. Economic parameters like net profits, rate of return, payback period, and break-even point are also estimated to perform economic analysis. The results obtained from technical analysis and economical feasibility studies show that the peroxide-ketazine-based hydrazine hydrate technology has clear advantages in terms of raw material consumption and economic competitiveness. [source]