Abstract A unique feature of inorganic membranes is the ability to operate at high temperature and pressure. Even supercritical solvents can be processed by these membranes, whereas polymer membranes tend to swell and consequently suffer from reduced selectivity and mechanical strength. Carbon membranes open new possibilities, e.g. the processing of high pressure, high temperature fluid streams directly in place or the use in membrane reactors for chemical reactions like H2-synthesis by dehydrogenation. This work investigates high pressure adsorption of carbon membrane material for different gases at up to 12 MPa, the selectivity and permeance for CO2/N2 mixtures in a pressure range from 0.1 to 20 MPa and the swelling of carbon material exposed to Oxygen at up to 10 MPa. A model based on Maxwell-Stefan diffusion with parameters gained from measured adsorption and fluxes has been implemented to improve the understanding of the behaviour of high pressure separation with carbon membranes.

中文翻译：

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碳膜的高压吸附、渗透和溶胀 - 高达 20 MPa 的测量和建模

摘要 无机膜的一个独特特征是能够在高温和高压下运行。这些膜甚至可以处理超临界溶剂，而聚合物膜往往会膨胀，因此会降低选择性和机械强度。碳膜开辟了新的可能性，例如直接就地处理高压、高温流体流或在膜反应器中用于化学反应，如通过脱氢合成氢气。这项工作研究了碳膜材料在高达 12 MPa 的压力下对不同气体的高压吸附、对 CO2/N2 混合物在 0.1 至 20 MPa 压力范围内的选择性和渗透性以及碳材料在高达 10 MPa 的氧气中的溶胀。兆帕。