http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Xianghai Guo (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
Zhenjiang He,Yuxi Yang,Peng Bai,Xianghai Guo 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.77 No.-
Selective adsorption and separation of three xylene isomers of seven stable metal-organic frameworks(MOFs) were investigated, where MIL-53(Cr) manifested the highest adsorption capacity and apparentpreference for o-xylene. Further detailed studies with MIL-53(Cr) showed that pseudo-second-ordermodelfit best with adsorption kinetics of xylene isomers, and the isotherms were perfectlyfitted byLangmuir isotherm model. The adsorption was proved to be a quick process, and both the changes ofentropy and enthalpy contributed to the o-xylene selectivity, but which mainly resulted from the entropyeffect. The adsorption capacity of preferable isomer o-xylene, on account of better packing efficiency, wasrecord-breaking 8.19 mmol/g, and selectivity of OX/PX, OX/MX and MX/PX were 13.75, 8.01 and 1.72,respectively. Both the adsorption capacity and OX selectivity on MIL-53(Cr) in liquid phase adsorptionand breakthrough experiments were super high, which discriminated it from zeolites and other materialsreported so far. Combined with extremely short equilibrium time and high stability, MIL-53(Cr) can be apromising adsorbent for separation of xylenes in industrial process.
-
Nan Zhang,Jiafei Lyu,Peng Bai,Xianghai Guo 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.57 No.-
Boron isotopic separation was investigated experimentally and theoretically on boron-specific adsorbent, namely pyrocatechol-modified resin (CL-RESIN). The static adsorption results with initial boron concentration of 8.648 g L−1 at 25 °C were well fitted by the pseudo-second-order kinetic model and Henry isotherm model, from which relevant parameters were used for subsequent isotopic separation simulation by Aspen Chromatograph. The maximum static boron isotopic separation factor with CL-RESIN was 1.13 at 25 °C, thus adsorption-based boron isotopic separation in a chromatographic column packing with CL-RESIN was further studied by experiments and simulations. 11B had greater affinity with CL-RESIN in concentrated boric acid solution with dynamic boron isotopic separation factor of 1.15 and enriched 10B was collected in effluent. Simulation of boron isotopic separation was completed, and simulated results were in good agreement with experimental breakthrough curves under the same conditions. Furthermore, the dynamic behaviors of boron isotopic separation were predicted by simulation under different operating conditions. Response surface methodology (RSM) was employed to determine optimized operating conditions in a chromatographic column. Consequently, the optimized operating conditions were achieved with flow rate of 1.24 mL min−1, 44 cm column length, 0.46 cm column diameter and feed concentration of 8.648 g L−1.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
