Inverse gas chromatography (IGC), atomic absorption spectroscopy (AAS), and Fourier-transform infrared spectroscopy (FTIR) were employed to investigate the surface properties of torrefied cardboard samples and their hydrocarbon adsorption. Three torrefied cardboard samples, TC-200, TC-250, and TC-300, were prepared at 200, 250, and 300 °C, respectively. A series of n-alkanes, BTX (benzene, toluene, and p-xylene), and several polar probes (dichloromethane, acetone, ethyl acetate, and tetrahydrofuran) were selected as molecular probes to measure the molar adsorption enthalpies (\({\Delta H}_{\mathrm{m}}\)), dispersive surface energies, and acid–base properties of torrefied cardboard samples. The \({\Delta H}_{\mathrm{m}}\) values of hydrocarbons measured on TC-300 and TC-250 were more exothermic than those measured for TC-200 by about 19 and 13%, respectively. The \({\Delta H}_{m}\) values of benzene, toluene, and p-xylene on three torrefied cardboard samples became more negative than those of n-hexane, n-heptane, and n-octane by approximately 17–20%. Surface free energy analysis using molecular probes found that TC-300 exhibited higher dispersive and specific surface energy than TC-250 and TC-200 did. From FTIR spectra and elemental analysis via AAS, C=C moieties in the carbonaceous substances and inorganic mineral compositions are responsible for enhanced dispersive and specific surface energy of TC-300. BTX adsorption isotherms on torrefied cardboard samples were well-fitted using the Freundlich model. Fitted parameters of adsorption isotherms also found that TC-300 had a larger adsorption capacity toward BTX than TC-250, TC-200, and non-torrefied cardboard did.

逆气相色谱 (IGC)、原子吸收光谱 (AAS) 和傅立叶变换红外光谱 (FTIR) 被用来研究烘焙纸板样品的表面特性及其碳氢化合物吸附。三个烘焙纸板样品，TC-200、TC-250 和 TC-300，分别在 200、250 和 300 °C 下制备。选择了一系列正构烷烃、BTX（苯、甲苯和对二甲苯）和几种极性探针（二氯甲烷、丙酮、乙酸乙酯和四氢呋喃）作为分子探针来测量摩尔吸附焓（\({\ Delta H}_{\mathrm{m}}\) )、分散表面能和烘焙纸板样品的酸碱特性。的\（{\德尔塔H} _ {\ mathrm {M}} \）在 TC-300 和 TC-250 上测得的碳氢化合物的放热值比在 TC-200 上测得的值分别高出约 19% 和 13%。的\（{\德尔塔H} _ {米} \）苯，甲苯，和的值p三个焙干纸板样品二甲苯变得比那些更负Ñ己烷，Ñ -庚烷，和Ñ-辛烷值大约降低 17-20%。使用分子探针进行的表面自由能分析发现，TC-300 表现出比 TC-250 和 TC-200 更高的色散和比表面能。从 FTIR 光谱和通过 AAS 进行的元素分析，含碳物质和无机矿物成分中的 C=C 部分是 TC-300 的色散和比表面能增强的原因。使用 Freundlich 模型拟合了烘焙纸板样品上的 BTX 吸附等温线。吸附等温线的拟合参数还发现，与 TC-250、TC-200 和非烘焙纸板相比，TC-300 对 BTX 的吸附能力更大。