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期刊论文 3

年份

2021 1

2020 1

2015 1

关键词

微生物代谢 1

甘油 1

生物修复 1

生物表面活性剂 1

生物转化 1

生物降解 1

鼠李糖脂 1

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HDS of dibenzothiophenes and hydrogenation of tetralin over a SiO

Qiang Wei, Jinwen Chen, Chaojie Song, Guangchun Li

《化学科学与工程前沿(英文)》 2015年 第9卷 第3期   页码 336-348 doi: 10.1007/s11705-015-1535-1

摘要: A one-step synthesized Ni-Mo-S catalyst supported on SiO was prepared and used for hydrodesulphurization (HDS) of dibenzothiophene (DBT), and 4,6-dimethyl-dibenzothiophene (4,6-DMDBT), and for hydrogenation of tetralin. The catalyst showed relatively high HDS activity with complete conversion of DBT and 4,6-DMDBT at temperature of 280 °C and a constant pressure of 435 psi. The HDS conversions of DBT and 4,6-DMDBT increased with increasing temperature and pressure, and decreasing liquid hourly space velocity (LHSV). The HDS of DBT proceeded mostly through the direct desulphurization (DDS) pathway whereas that of 4,6-DMDBT occurred mainly through the hydrogenation-desulphurization (HYD) pathway. Although the catalyst showed up to 24% hydrogenation/dehydrogenation conversion of tetralin, it had low conversion and selectivity for ring opening and contraction due to the competitive adsorption of DBT and 4,6-DMDBT and insufficient acidic sites on the catalyst surface.

关键词: hydrodesulphurization (HDS)     hydrogenation     dibenzothiophene (DBT)     4     6-dimethyldibenzothiophene (4     6-DMDBT)     tetralin    

Experimental and DFT insights into nitrogen and sulfur co-doped carbon nanotubes for effective desulfurization of liquid phases: Equilibrium & kinetic study

《环境科学与工程前沿(英文)》 2021年 第15卷 第5期 doi: 10.1007/s11783-021-1397-3

摘要:

• Synthesis of NS-CNTS is used in a high desulfurization performance.

关键词: Dibenzothiophene (DBT)     Tertiary methyl mercaptan     Adsorption     Carbon nano tube (CNT)     Desulfurization     Doping    

甘油诱导的鼠李糖脂增强伯克霍尔德菌属C3中二苯并噻吩的生物降解 Article

Camila A. Ortega Ramirez, Abraham Kwan, Qing X. Li

《工程(英文)》 2020年 第6卷 第5期   页码 533-540 doi: 10.1016/j.eng.2020.01.006

摘要: 二苯并噻吩(DBT)是一种城市地区常见的杂环芳香烃,常被用作污染物微生物转化研究的模型化合物。人体接触的可能性及其健康风险使DBT成为一种令人担忧的化学品,因此,需要对DBT进行环境管理。C3),降解其中的DBT,内容涉及以下方面:①DBT的生物降解动力学;②细菌生长;③鼠李糖脂(RL)的生物合成;④RL分泌。在甘油与DBT最佳摩尔比的情况下,实验第1天,DBT的生物降解速率常数与单独使用DBT培养基相比提高了18倍,DBT的生物降解率提高了25%~30%。在增添了甘油和DBT的培养基中鉴定出了鼠李糖脂的同系物:Rha-C10-C10、Rha-Rha-C10-C10、Rha-Rha-C10-C12和Rha-Rha-C12-C12,然而,在不含甘油或添加了RL研究表明,甘油通过促进RL的合成和细菌的生长来促进DBT的生物降解。根据这些结果,值得进一步研究甘油对环境生物的刺激作用,以促进生物修复技术的发展和提高农业土壤的有效性。

关键词: 生物降解     生物修复     生物表面活性剂     生物转化     甘油     微生物代谢     鼠李糖脂    

标题 作者 时间 类型 操作

HDS of dibenzothiophenes and hydrogenation of tetralin over a SiO

Qiang Wei, Jinwen Chen, Chaojie Song, Guangchun Li

期刊论文

Experimental and DFT insights into nitrogen and sulfur co-doped carbon nanotubes for effective desulfurization of liquid phases: Equilibrium & kinetic study

期刊论文

甘油诱导的鼠李糖脂增强伯克霍尔德菌属C3中二苯并噻吩的生物降解

Camila A. Ortega Ramirez, Abraham Kwan, Qing X. Li

期刊论文