Longxin Miao
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
Longxin Miao has a total of 2 co-authors. Here are the top co-authors by number of shared publications:
- Xiaojing Ren
Shanxi Province Key Laboratory of Higee-Oriented Chemical Engineering, North University of China, No.3, Xueyuan Road, Jiancaoping District, Taiyuan 030051, China
1 shared publication - Youzhi Liu
School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, China
1 shared publication
Latest Publications
- Open Access
- 4 February 2020
- Published by MDPI AG in Nanomaterials
- Vol. 10 (2) , 263
Continuous Carbonation for Synthesis of Pseudo-Boehmite by Using Cross-Flow Rotating Packed Bed through the Reaction of NaAlO2 Solution with CO2 Gas
This research established a novel method for the preparation of pseudo-boehmite (PB) via a continuous carbonation of CO2 gas and a NaAlO2 solution in a cross-flow rotating packed bed (CF-RPB). In the CF-RPB, the NaAlO2 solution can be sheared into fine liquid filaments and droplets, and react in full contact with the CO2 gas. Effects of synthesis parameters, including the concentration of the NaAlO2 solution, the gas–liquid ratio, the rotating speed of the CF-RPB, and the final pH of the solution on the crystal structure of PB, were fully investigated. A series of characterizations, including X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Brunauer–Emmett–Teller (BET) analysis, were carried out to explain the evaluation results and to find the relationship between PB properties and the synthetic conditions. The results showed that PB with a high specific surface area (495 m2/g) and large pore volume (2.125 cc/g) can be obtained when the concentration of the NaAlO2 solution was 0.1 mol/L, the gas–liquid ratio was 3:1, the rotating speed of RPB was 600 rpm, and the final pH was around 10.5. PB obtained by this method had a higher quality compared with that using a stirred tank reactor. Moreover, the continuous carbonation can be efficiently batch-produced, which provided a new idea for an industrial application.
- 4 February 2020
- Published by MDPI AG in Nanomaterials
- Vol. 10 (2) , 263
Open AccessContinuous Carbonation for Synthesis of Pseudo-Boehmite by Using Cross-Flow Rotating Packed Bed through the Reaction of NaAlO2 Solution with CO2 Gas
This research established a novel method for the preparation of pseudo-boehmite (PB) via a continuous carbonation of CO2 gas and a NaAlO2 solution in a cross-flow rotating packed bed (CF-RPB). In the CF-RPB, the NaAlO2 solution can be sheared into fine liquid filaments and droplets, and react in full contact with the CO2 gas. Effects of synthesis parameters, including the concentration of the NaAlO2 solution, the gas–liquid ratio, the rotating speed of the CF-RPB, and the final pH of the solution on the crystal structure of PB, were fully investigated. A series of characterizations, including X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Brunauer–Emmett–Teller (BET) analysis, were carried out to explain the evaluation results and to find the relationship between PB properties and the synthetic conditions. The results showed that PB with a high specific surface area (495 m2/g) and large pore volume (2.125 cc/g) can be obtained when the concentration of the NaAlO2 solution was 0.1 mol/L, the gas–liquid ratio was 3:1, the rotating speed of RPB was 600 rpm, and the final pH was around 10.5. PB obtained by this method had a higher quality compared with that using a stirred tank reactor. Moreover, the continuous carbonation can be efficiently batch-produced, which provided a new idea for an industrial application.