固定相：5 ?分子篩

粒度：60-80目

規(guī)格：2m*3mm，4m*3mm，英制1/8，1/4

根據(jù)客戶要求定制

應(yīng)用：氣體O2/N2/CH4/CO分離，效果良好

滕州市浩瀚色譜儀器技術(shù)服務(wù)有限公司，重新推導(dǎo)并簡化了采用反相氣相色譜法來測定吸附熱力學(xué)參數(shù)的計算公式,并且在不同溫度下,對N2和CO在4種分子篩上色譜保留時間進行了測定,對測定結(jié)果以推導(dǎo)公式為函數(shù)作線性回歸,并且計算了吸附熱力學(xué)參數(shù)ΔadH,ΔadS和ΔadG。結(jié)果表明,保留時間與1/T相關(guān)性很好,CO的吸附熱隨著分子篩Ca2+交換度的增加而增加,隨著H+交換度的增加而減少,N2的吸附熱則隨著Ca2+交換度的增加變化不明顯,隨著H+交換度的增加而減少;CO和N2的吸附熱在-25.36—-29.39 kJ/mol,4種分子篩對N2和CO的吸附熵在-80.01—-73.96J/(mol.K)和-72.13—-60.48 J/。



N2和CO在分子篩上吸附氣相色譜圖片：



Gas Chromatography of Adsorption of N_2 and CO on Molecular Sieves
Gas Chromatography of N_2 and CO Adsorption on Molecular Sieves Detailed Information:

Stationary phase: molecular sieve

Particle size: 60-80 mesh

Specifications: 2m*3mm, 4m*3mm, inch 1/8, 1/4

Customized according to customer requirements

Application: Permanent gas O2/N2/CH4/CO separation, good effect

Tengzhou Haohao Chromatography Instrument Technology Service Co., Ltd. re-derived and simplified the calculation formula for the determination of adsorption thermodynamic parameters by reversed-phase gas chromatography, and carried out the chromatographic retention time of N2 and CO on four molecular sieves at different temperatures. For the measurement, the measurement results were linearly regressed by using the derivation formula as a function, and the adsorption thermodynamic parameters ΔadH, ΔadS and ΔadG were calculated. The results show that the retention time is well correlated with 1/T. The adsorption heat of CO increases with the increase of Ca2+ exchange degree of molecular sieve, and decreases with the increase of H+ exchange degree. The adsorption heat of N2 increases with Ca2+ exchange degree. The increase is not obvious, and decreases with the increase of H+ exchange degree; the heat of adsorption of CO and N2 is -25.36--29.39 kJ/mol, and the adsorption entropy of N2 and CO by four kinds of molecular sieves is -80.01--73.96J/( Mol.K) and -72.13--60.48 J/.



Gas Chromatography of Adsorption of N_2 and CO on Molecular Sieves