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Advances in the slurry reactor technology of the anthraquinone process for H

Hongbo Li, Bo Zheng, Zhiyong Pan, Baoning Zong, Minghua Qiao

《化学科学与工程前沿（英文）》 2018年第12卷第1期页码 124-131 doi: 10.1007/s11705-017-1676-5

摘要： This paper overviews the development of the anthraquinone auto-oxidation (AO) process for the production of hydrogen peroxide in China and abroad. The characteristics and differences between the fixed-bed and fluidized-bed reactors for the AO process are presented. The detailed comparison indicates that the production of hydrogen peroxide with the fluidized-bed reactor has many advantages, such as lower operation cost and catalyst consumption, less anthraquinone degradation, higher catalyst utilization efficiency, and higher hydrogenation efficiency. The key characters of the production technology of hydrogen peroxide based on the fluidized-bed reactor developed by the Research Institute of Petroleum Processing, Sinopec are also disclosed. It is apparent that substituting the fluidized-bed reactor for the fixed-bed reactor is a major direction of breakthrough for the production technology of hydrogen peroxide in China.

关键词： anthraquinone process fixed-bed reactor slurry-bed reactor hydrogen peroxide

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Multi-effect anthraquinone-based polyimide enclosed SnO/reduced graphene oxide composite as high-performance

《化学科学与工程前沿（英文）》 2023年第17卷第9期页码 1231-1243 doi: 10.1007/s11705-023-2306-z

摘要： The cycling stability of SnO₂ anode as lithium-ion battery is poor due to volume expansion. Polyimide coatings can effectively confine the expansion of SnO₂. However, linear polyimides are easily dissolved in ester electrolytes and their carbonyls is not fully utilized during charging/discharging process. Herein, the SnO₂ enclosed with anthraquinone-based polyimide/reduced graphene oxide composite was prepared by self-assembly. Carbonyls from the anthraquinone unit provide fully available active sites to react with Li⁺, improving the utilization of carbonyl in the polyimide. More exposed carbonyl active sites promote the conversion of Sn to SnO₂ with electrode gradual activation, leading to an increase in reversible capacity during the charge/discharge cycle. In addition, the introduction of reduced graphene oxide cannot only improve the stability of polyimide in the electrolyte, but also build fast ion and electron transport channels for composite electrodes. Due to the multiple effects of anthraquinone-based polyimide and the synergistic effect of reducing graphene oxide, the composite anode exhibits a maximum reversible capacity of 1266 mAh·g⁻¹ at 0.25 A·g⁻¹, and maintains an excellent specific capacity of 983 mAh·g⁻¹ after 200 cycles. This work provides a new strategy for the synergistic modification of SnO₂.

关键词： anthraquinone-based polyimide multi-effect tin dioxide reduced graphene oxide lithium-ion battery

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A comparison of the catalytic hydrogenation of 2-amylanthraquinone and 2-ethylanthraquinone over a Pd/Al

Enxian Yuan, Xiangwei Ren, Li Wang, Wentao Zhao

《化学科学与工程前沿（英文）》 2017年第11卷第2期页码 177-184 doi: 10.1007/s11705-016-1604-0

摘要： The hydrogenation of 2-ethylanthraquinone (eAQ), 2- -amylanthraquinone (taAQ) and their mixtures with molar ratios of 1:1 and 1:2 to the corresponding hydroquinones (eAQH and taAQH ) were studied over a Pd/Al O catalyst in a semi-batch slurry reactor at 60 °C and at 0.3 MPa. Compared to eAQ, TaAQ exhibited a significantly slower hydrogenation rate (about half) but had a higher maximum yield of H O and a smaller amount of degradation products. This can be ascribed to the longer and branched side chain in taAQ, which limits its accessibility to the Pd surface and its diffusion through the pores of the catalyst. Density functional theory calculations showed that it is more difficult for taAQ to adsorb onto a Pd (111) surface than for eAQ. The hydrogenation of the eAQ/taAQ mixtures had the slowest rates, lowest H O yields and the highest amounts of degradation products.

关键词： hydrogenation hydrogen peroxide anthraquinone Pd catalyst AO process

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Triggering the biocontrol of

Kandasamy SARAVANAKUMAR, Zhixiang LU, Hai XIA, Meng WANG, Jianan SUN, Shaoqing WANG, Qiang-qiang WANG, Yaqian LI, Jie CHEN

《农业科学与工程前沿（英文）》 2018年第5卷第2期页码 271-279 doi: 10.15302/J-FASE-2018214

摘要： This study reports a strain of CCTCC-SBW0162 with potential to enhance biocontrol activity against gray mold pathogen, , and with a pivotal role in tomato ( ) plant growth enhancement. A total of 254 isolates were screened by antagonistic assay. Of these, 10 were selected for greenhouse experiments based on their greater inhibition of . The antagonistic assay and greenhouse experiments indicated that CCTCC-SBW0162 gave the highest inhibition rate (90.6%) and disease reduction (80.7%). Also, to study the possible mechanism associated with antifungal activity of CCTCC-SBW0162 against , molecular docking was used to assess the interactions between CCTCC-SBW0162-derived metabolites, and pathogencity and virulence related proteins of . The molecular docking results indicated that the combination of harzianopyridone, harzianolide and anthraquinone C derived from CCTCC-SBW0162 could synergistically improve antifungal activity against through the inhibition/modification of pathogenicity and virulence related proteins. However, this computerized modeling work emphasized the need for further study in the laboratory to confirm the effect derived metabolites against the proteins of and their interactions.

关键词： anthraquinone Botrytis cinerea harzianolide harzianopyridone molecular docking Trichoderma harzianum