A METHOD TO OBTAIN A COMPACT REPRESENTATION OF PROCESS PERFORMANCES FROM A NUMERICAL SIMULATOR - EXAMPLE OF PRESSURE SWING ADSORPTION FOR PURE HYDROGEN-PRODUCTION

被引:21
作者
CHLENDI, M
TONDEUR, D
ROLLAND, F
机构
[1] ENSIC,CNRS,SCI GEN CHIM LAB,1 RUE GRANDVILLE,BP 451,F-54001 NANCY,FRANCE
[2] RHONE POULENC RECH,CTR RECH AUBERVILLIERS,F-93308 AUBERVILLIERS,FRANCE
来源
GAS SEPARATION & PURIFICATION | 1995年 / 9卷 / 02期
关键词
PSA; STATISTICAL EXPERIMENTS DESIGN; H2; PRODUCTION;
D O I
10.1016/0950-4214(95)93950-O
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The purpose of this work is to propose a method of global characterization of the behaviour of pressure-swing-adsorption (PSA) cycles based on statistical experiments design, the 'experiments' being actually numerical (simulation). The result of that procedure presented here is a set of polynomials describing the performances of the PSA cycles (purity, yield, productivity) as functions of operating or design variables (flow rates, pressures, composition, bed length, step durations). These polynomials represent the sensitivity of the position, bed length, step durations). These polynomials represent the sensitivity of the process to fluctuations, perturbations or international changes of process variables, and can be used, within their range of validity, as a fast aid to operators, and as a tool for design and optimization. The specific case investigated is a PSA cycle for pure hydrogen production from a mixture with CO2, CH4, CO and N2 obtained by cracking natural gas. The process comprises two adsorbent beds, each containing a zeolite layer on top of an active carbon layer.
引用
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页码:125 / 135
页数:11
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