Review of Membrane Oxygen Enrichment for Efficient Combustion

International Conference on Energy Sciences 2016

能源学;物理学

Ariono, Danu^1 ; Wardani, Anita Kusuma^1

Department of Chemical Engineering, ITB, Jl. Ganesha 10, Bandung

40132, Indonesia^1

关键词: Combustion pro-cess;    Combustion technology;    Efficient combustions;    Ignition characteristics;    Low capital costs;    Low energy consumption;    Oxygen enrichment;    Oxygen-enriched air;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/877/1/012050/pdf
DOI  :  10.1088/1742-6596/877/1/012050

来源: IOP

【 摘 要 】

Oxygen enrichment from air is a simple way of increasing the efficiency of combustion process, as in oxy-combustion. Oxy-combustion has become one of the most attracting combustion technologies because of its potential to address both pollutant reduction and CO2capture. In oxy-combustion, the fuel and recycled flue gas are combusted with oxygen enriched air (OEA). By using OEA, many benefits can be obtained, such as increasing available heat, improving ignition characteristics, flue gas reduction, increasing productivity, energy efficiency, turndown ratio, and flame stability. Membrane-based gas separation for OEA production becomes an attractive technology over the conventional technology due to the some advantages, including low capital cost, low energy consumption, compact size, and modularity. A single pass through membrane usually can enrich O2concentration in the air up to 35% and a 50% concentration can be achieved with a double pass of membrane. The use of OEA in the combustion process eliminates the presence of nitrogen in the flue gas. Hence, the flue gas is mainly composed of CO2and condensable water that can be easily separated. This paper gives an overview of oxy-combustion with membrane technology for oxygen enrichment process. Special attention is given to OEA production and the effect of OEA to the efficiency of combustion.