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摘要? 吸附材料的性能對油氣分子吸附過程起著關(guān)鍵性的作用,。本文系統(tǒng)表征了3種硅膠吸附材料(A型,、B型和C型)的結(jié)構(gòu)信息,，計(jì)算了其標(biāo)準(zhǔn)特征吸附能,，考察了其初次吸附鈍化過程和動態(tài)吸附過程特性,。實(shí)驗(yàn)結(jié)果表明,，A型硅膠具有豐富的微孔結(jié)構(gòu),，而B型硅膠和C型硅膠則為典型的介孔材料,，通過標(biāo)準(zhǔn)吸附特征能可反映其微孔分布,；初次鈍化吸附量和動態(tài)吸附量變化情況相似，均為A型硅膠最大,，B型硅膠次之,，C型硅膠最小，微孔分布決定了油氣分子吸附過程,，從而影響對應(yīng)的吸附量,。

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關(guān)鍵詞 ：油氣回收,；硅膠,；吸附材料；吸附鈍化,；動態(tài)吸附,；吸附機(jī)理

Abstract：

　　The performance of adsorbents plays a critical role in the adsorption of gasoline vapor mixtures. Therefore, this paper systematically characterized the pore structure information of three kinds of silica gels, gel-A, gel-B and gel-C. The standard adsorption energies were calculated, and the performance of the first passivation adsorption and dynamic adsorption were also investigated. The experimental results showed that gel-A is rich in microporous area, however, gel-B and gel-B exhibit obvious mesoporous character. The standard adsorption energy calculated can also reveal the microporous distribution of the three silica gels. In addition, the adsorbed capacity of first passivation and dynamic adsorption shows the same trend, gel-A > gel-B > gel-C. Gasoline vapor adsorption on silica gels was determined by microporous distribution, thus affecting the corresponding adsorption capacity.

Key words： oil vapor recovery ; silica gels ; adsorbent ; adsorbent passivation ; dynamic adsorption ; adsorption mechanism

收稿日期: 2016-11-15 ????

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通訊作者: [email protected]

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閆柯樂. 不同類型硅膠對油氣吸附性能對比實(shí)驗(yàn)研究[J]. 石油科學(xué)通報(bào), 2016, 1(3): 434-441. YAN Kele. Experimental study of the adsorption of gasoline vapor on different silica gels . 石油科學(xué)通報(bào), 2016, 1(3): 434-441.

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