Experimental analysis of membrane and pressure swing adsorption (PSA) for the hydrogen separation from natural gas

被引:104
作者
Liemberger, Werner [1 ]
Gross, Markus [1 ]
Miltner, Martin [1 ]
Harasek, Michael [1 ]
机构
[1] TU Wien, Inst Chem Engn, Getreidemarkt 9-166, A-1060 Vienna, Austria
关键词
Hydrogen transportation; Natural gas grid infrastructure; Fuel-cell quality hydrogen; Membrane separation; Pressure swing adsorption; Power-to-gas; ENERGY-STORAGE TECHNOLOGIES; MOLECULAR-SIEVE MEMBRANES; POLYMERIC MEMBRANES; POLYIMIDE MEMBRANES; FUEL-CELL; PURIFICATION; CARBON; MIXTURES; RECOVERY; ELECTROLYSIS;
D O I
10.1016/j.jclepro.2017.08.012
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The current work presents a process that separates hydrogen from mixtures with natural gas transported in the natural gas grid. The aim is to achieve hydrogen at fuel cell quality (99.97% (v/v) according to ISO 14687-2:2012). Due to gas grid regulations in Austria the hydrogen content is limited to a maximum of 4% (v/v). In a hybrid approach based on membrane separation and pressure swing adsorption (PSA) the supplied high pressure hydrogen natural gas mixture (up to 120 bar) is pre-enriched by membrane technology and further upgraded to the required quality by PSA. The majority of the feed gas is kept at grid pressure, which ensures a high energetic efficiency. The remaining components, separated by PSA, are re-compressed and returned to the grid. Beside the technological feasibility, the influence of various process parameters (e.g. stage-cut, permeate conditions, PSA hydrogen recovery) is analysed. Based on the results, the required amount of energy of 0.8-1.5 kWh/m(3) (fuel-cell quality hydrogen at 25.81 bar(a)) is calculated for the so called HylyPure (R) process. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码:896 / 907
页数:12
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