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17 results on '"Xie, Xingyue"'

11. Efficient Treatment of the Sweet Potato Starch Wastewater by Enhanced Flocculation–Coagulation of Environmentally Benign Materials

Author

Zhang, Yalan, primary, Li, Meng, additional, Zhang, Guihai, additional, Liu, Wei, additional, Xu, Jinying, additional, Tian, Yuansong, additional, Wang, Yinfeng, additional, Xie, Xingyue, additional, Peng, Zhiqi, additional, Li, Aimin, additional, Zhang, Ru, additional, Wu, Daise, additional, and Xie, Xianchuan, additional

Published
2022
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15. Zn‐Al hydrotalcite‐derived CoxZnyAlOz catalysts for hydrogen generation by auto‐thermal reforming of acetic acid.

Author

Xie, Xingyue, Zhou, Qing, Hu, Xiaomin, Jia, Xuanyi, and Huang, Lihong

Subjects
*INTERSTITIAL hydrogen generation, *ACETIC acid, *CONTINUOUS flow reactors, *CATALYSTS, *RENEWABLE natural resources, *REFORMS, *ZINC oxide
Abstract

Summary: Auto‐thermal reforming (ATR) of acetic acid (HAc) is considered as a promising route for hydrogen generation from renewable resources, while oxidation, coking, and sintering need to be addressed for durable catalysts in ATR. In the current work, Zn‐Al hydrotalcite‐derived CoxZnyAlOz catalysts were prepared by co‐precipitation and evaluated in a fixed‐bed tubular quartz continuous‐flow reactor. The Co0.70Zn3.30AlO5.5 ± δ catalyst presented a HAc conversation near 100% and a stable hydrogen yield near 3.01 mol‐H2/mol‐HAc. The characterization results of XRD, H2‐TPR, BET, SEM, XPS, and TG indicated that the hydrotalcite structure was obtained via co‐precipitation method; over the hydrotalcite‐derived mixed oxides, (a) the specific surface area was increased with high dispersion of Co, (b) the phases of ZnO with spinel of ZnAl2O4,CoAl2O4, Co3O4, and ZnCo2O4 were beneficial to improve resistance to coking and oxidation, and (c) the relative stability of Co species over ZnO and spinel phases helps to suppress sintering. Meanwhile, ratio of O/C and temperatures near 0.28 and 650 °C, respectively, were also evaluated and proposed as optimized conditions for hydrogen generation, and the durable Co0.70Zn3.30AlO5.5 ± δ catalyst produced a rate of 114.9 mmol‐H2/s/g‐catalyst in a 15‐hour ATR test, showing promising potential for hydrogen generation. [ABSTRACT FROM AUTHOR]

Published
2019
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16. Highly Efficient Al-Doped Ni–Mn–O Catalysts for Auto-Thermal Reforming of Acetic Acid: Role of MnAl2O4for Stability of Ni Species

Author

Song, Yuxin, Chen, Boquan, Hu, Xiaomin, Wang, Qiao, Xie, Xingyue, Dai, Hui, and Huang, Lihong

Abstract

Auto-thermal reforming (ATR) of acetic acid (HAc) from renewable bio-oil is an alternative route for hydrogen production, and a series of Ni/Mn(II)Al(III)Ox±δcatalysts were prepared via co-precipitation method and tested in the ATR of HAc. Different parameters including reaction temperatures, O/C molar ratios, gas-hourly space velocity (GHSV), and stability were investigated. The optimal Ni0.39Mn1.61AlO4.31±δcatalyst exhibited excellent catalytic performance in a 50 h ATR test: HAc was converted to H2-rich gas with conversion near 100% and hydrogen yield at 2.7 mol H2/mol HAc. Characterization results demonstrate that with strong interaction among nickel, manganese, and aluminum, a thermally stable spinel structure of MnAl2O4over the MnO support was formed and restrained the growth of Ni particle; meanwhile, oxygen vacancies were found and were beneficial for oxygen transfer in the gasification of carbon. As a result, deactivation by carbon deposition and sintering was restrained. Moreover, high GHSV up to 120,000 mL/(gcat.·h) and fast response to startup were recorded, showing potential for hydrogen feeding via the ATR process.

Published
2020
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