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工业含碳氢副产物/废弃物的多元料浆气化利用可行性分析 被引量:2
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作者 罗进成 朱春鹏 +2 位作者 林益安 王晓娟 徐永萍 《化肥设计》 CAS 2014年第3期15-18,共4页
简要介绍了多元料浆气化技术的应用成果;从制浆成浆性和气化反应活性2个方面分析了几种富含碳氢元素的工业副产物/废弃物成为潜在煤基替代品的可行性。结果表明:多元料浆气化技术对于原料的适应性逐渐增强,进行煤炭资源替代工作已具备... 简要介绍了多元料浆气化技术的应用成果;从制浆成浆性和气化反应活性2个方面分析了几种富含碳氢元素的工业副产物/废弃物成为潜在煤基替代品的可行性。结果表明:多元料浆气化技术对于原料的适应性逐渐增强,进行煤炭资源替代工作已具备较好的理论基础和实施基础。 展开更多
关键词 多元料浆气化 成浆性 气化反应活性 产物/废弃物 利用 可行性分析
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Octahedral Cu_2O-modified TiO_2 nanotube arrays for efficient photocatalytic reduction of CO_2 被引量:5
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作者 李延芳 张文沛 +3 位作者 沈星 彭鹏飞 熊良斌 余颖 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 北大核心 2015年第12期2229-2236,共8页
A photocatalyst composed of TiO 2 nanotube arrays(TNTs) and octahedral Cu2 O nanoparticles was fabricated,and its performance in the photocatalytic reduction of CO2 under visible and simulated solar irradiation was ... A photocatalyst composed of TiO 2 nanotube arrays(TNTs) and octahedral Cu2 O nanoparticles was fabricated,and its performance in the photocatalytic reduction of CO2 under visible and simulated solar irradiation was studied. The average nanotube diameter and length was 100 nm and 5 μm,respectively. The different amount of octahedral Cu2 O modified TNTs were obtained by varying electrochemical deposition time. TNTs modified with an optimized amount of Cu2 O nanoparticles exhibited high efficiency in the photocatalysis,and the predominant hydrocarbon product was methane. The methane yield increased with increasing Cu2 O content of the catalyst up to a certain deposition time,and decreased with further increase in Cu2 O deposition time. Insufficient deposition time(5 min) resulted in a small amount of Cu2 O nanoparticles on the TNTs,leading to the disadvantage of harvesting light. However,excess deposition time(45 min) gave rise to entire TNT surface being most covered with Cu2 O nanoparticles with large sizes,inconvenient for the transport of photo-generated carriers. The highest methane yield under simulated solar and visible light irradiation was observed for the catalysts prepared at a Cu2 O deposition time of 15 and 30 min respectively. The morphology,crystallization,photoresponse and electrochemical properties of the catalyst were characterized to understand the mechanism of its high photocatalytic activity. The TNT structure provided abundant active sites for the adsorption of reactants,and promoted the transport of photogenerated carriers that improved charge separation. Modifying the TNTs with octahedral Cu2 O nanoparticles promoted light absorption,and prevented the hydrocarbon product from oxidation. These factors provided the Cu2O-modified TNT photocatalyst with high efficiency in the reduction of CO2,without requiring co-catalysts or sacrificial agents. 展开更多
关键词 Titania nanotube arrays Octahedral cuprous oxide nanoparticles Photocatalytic carbon dioxide reduction Hydrocarbon product PHOTOACTIVITY
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Recycle Demetallating Process for Hydrocarbonaceous Feedstocks
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作者 Zhang Haibing Luo Lailong +1 位作者 Ma Zhongting LüXiurong (Petrochemical Research Institute, Karamay Petrochemical Complex, PetroChina Co. Ltd., Karamay 834000) 《China Petroleum Processing & Petrochemical Technology》 SCIE CAS 2008年第1期41-47,共7页
The development and research on the recycle demetallating process are introduced. It shows the recycle demetallating process is effective on removing metal elements in heavy crude oil, especially with regard to calciu... The development and research on the recycle demetallating process are introduced. It shows the recycle demetallating process is effective on removing metal elements in heavy crude oil, especially with regard to calcium, through commercial application in delayed coking unit. Finally, the ash content in petroleum coke can be decreased to less than 0.5%, which complies with the IB coke standard. At the same time, the recycle demetallating process is an environmentally friendly technique, which has little effect on production quality and equipment corrosion. 展开更多
关键词 DEMETALLATION recycle process industrial application
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