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Synthesis, characterization and hydrotreating performance of supported tungsten phosphide catalysts

SUN Guida, LI Cuiqing, ZHOU Zhijun, LI Fengyan

《化学科学与工程前沿（英文）》 2008年 第2卷 第2期   页码 155-164 doi: 10.1007/s11705-008-0038-8

摘要： Supported tungsten phosphide catalysts were prepared by temperature-programmed reduction of their precursors (supported phospho-tungstate catalysts) in H and characterized by X-ray diffraction (XRD), BET, temperature-programmed desorption of ammonia (NH-TPD) and X-ray photoelectron spectroscopy (XPS). The reduction-phosphiding processes of the precursors were investigated by thermogravimetry and differential thermal analysis (TG-DTA) and the suitable phosphiding temperatures were defined. The hydrodesulfurization (HDS) and hydrodenitrogenation (HDN) activities of the catalysts were tested by using thiophene, pyridine, dibenzothiophene, carbazole and diesel oil as the feedstock. The TiO, -AlO supports and the Ni, Co promoters could remarkably increase and stabilize active W species on the catalyst surface. A suitable amount of Ni (3%–5%), Co (5%–7%) and V (1%–3%) could increase dispersivity of the W species and the BET surface area of the WP/-AlO catalyst. The WP/-AlO catalyst possesses much higher thiophene HDS and carbazole HDN activities and the WP/TiO catalyst has much higher dibenzothiophene (DBT) HDS and pyridine HDN activities. The Ni, Co and V can obviously promote the HDS activity and inhibit the HDN activity of the WP/-AlO catalyst. The G-Ni5 catalyst possesses a much higher diesel oil HDS activity than the sulphided industrial NiW/-AlO catalyst. In general, a support or promoter in the WP/-AlO catalyst which can increase the amount and dispersivity of the active W species can promote its HDS and HDN activities.

关键词： tungsten phosphide     differential thermal     catalyst surface     industrial NiW/-AlO     general    

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Catalytic activity of cerium-doped Ru/AlO during ozonation of dimethyl phthalate

ZHOU Yunrui, ZHU Wanpeng, CHEN Xun

《环境科学与工程前沿（英文）》 2008年 第2卷 第3期   页码 354-357 doi: 10.1007/s11783-008-0059-z

摘要： In this paper, factors influencing the mineralization of dimethyl phthalate (DMP) during catalytic ozonation with a cerium-doped Ru/AlO catalyst were studied. The catalytic contribution was calculated through the results of a comparison experiment. It showed that doping cerium significantly enhanced catalytic activity. The total organic carbon (TOC) removal over the doped catalyst at 100 min reached 75.1%, 61.3% using Ru/AlO catalyst and only 14.0% using ozone alone. Catalytic activity reached the maximum when 0.2% of ruthenium and 1.0% of cerium were simultaneously loaded onto AlO support. Results of experiments on oxidation by ozone alone, adsorption of the catalyst, Ce ion’s and heterogeneous catalytic ozonation confirmed that the contribution of heterogeneous catalytic ozonation was about 50%, which showed the obvious effect of Ru–Ce/AlO on catalytic activity.

关键词： Ru–Ce/AlO     dimethyl phthalate     mineralization     comparison experiment     catalytic ozonation    

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Reductive amination of -hexanol to -hexylamine over Ni–Ce/-AlO catalysts

《化学科学与工程前沿（英文）》 2023年 第17卷 第1期   页码 82-92 doi: 10.1007/s11705-022-2181-z

摘要： The amination of alkyl alcohols is one of the most promising paths in synthesis of aliphatic amines. Herein, cerium doped nickel-based catalysts were synthesized and tested in a gas-phase amination of n-hexanol to n-hexylamine. It was found that the activity of the Ni/γ-Al2O3 catalyst is significantly improved by doping an appropriate amount of cerium. The presence of cerium effectively inhibits the agglomeration of nickel particle, resulting in better Ni dispersion. As Ni particle size plays critical role on the catalytic activity, higher turnover frequency of n-hexanol amination was achieved. Cerium doping also improves the reduction ability of nickel and enhances the interactions between Ni and the catalyst support. More weak acid sites were also found in those cerium doped catalysts, which promote another key step—ammonia dissociative adsorption in this reaction system. The overall synergy of Ni nanoparticles and acid sites of this Ni–Ce/γ-Al2O3 catalyst boosts its superior catalytic performance in the amination of n-hexanol.

关键词： amination     alcohol     cerium     nickel     acidity     interaction    

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Cu/Cr co-stabilization mechanisms in a simulated AlO-FeO-CrO-CuO waste system

《环境科学与工程前沿（英文）》 2021年 第15卷 第6期 doi: 10.1007/s11783-021-1408-4

摘要：

• Cu and Cr can be mostly incorporated into CuFexAlyCr2−x−yO4 with a spinel structure.

关键词： Spinel structure     Copper     Chromium     Co-stabilization     Thermal treatment    

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Growth and properties analysis of metal-organic chemical vapor deposited MgZnO films on -AlO substrates

SHI Zengliang, LIU Dali, YAN Xiaolong, GAO Zhongmin, BAI Shiying

《机械工程前沿（英文）》 2008年 第3卷 第3期   页码 261-264 doi: 10.1007/s11465-008-0036-z

摘要： MgZnO (0 < ? 0.12) thin films with the wurtzite structure have been successfully grown on -AlO substrates by metal-organic chemical vapor deposition (MOCVD). X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), photoluminescence (PL) spectrometry, and transmission measurements are performed to study the characteristics of MgZnO thin films. Results show that with increasing Mg content, the diffraction peak of MgZnO thin films shifts towards a higher diffraction angle (the biggest shift is 0.22°), and the full width at half maximum (FWHM) of the diffraction peak is broadened. Meanwhile, a blue-shift occurs at the near-band-edge (NBE) emission peak and the largest blue-shift of the band gap of the MgZnO films is 113 meV with Mg content = 0.12. Therefore, the energy band gap of the MgZnO films is determined by Mg content in the thin films and the energy band gap increases with an increase of Mg content.

关键词： increase     photoelectron spectroscopy     transmission     wurtzite structure     MgZnO    

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Preparation of ultrafine α-AlO using precipitation-azeotropic distillation method

XIAO Jin, QIN Qi, ZHOU Feng, CHEN Yanbin, WAN Ye

《机械工程前沿（英文）》 2008年 第3卷 第2期   页码 226-231 doi: 10.1007/s11465-008-0029-y

摘要： Ammonium aluminum carbonate hydroxide (AACH) was prepared by a precipitation-azeotropic distillation method, which uses aluminum sulfate as the Al source and ammonium carbonate as the precipitant. Then, AACH was calcined into ultrafine ?-AlO powder. The factors that influence the dispersion property of ultrafine ?-AlO powder are discussed in this paper, such as the methods of adding materials, surfactant, and drying methods. The changes of the structure and property of ultrafine alumina in the thermal treatment process are also studied. The morphological structure and properties of AACH are characterized by DTA/TGA, SEM, XRD, and ICP measurements. The results show that ultrafine ?-AlO powder with a uniform particle size and well-distributed property can be synthesized only after aluminum sulfate atomizes into ammonium carbonate, proper amount of PEG1000 is added as the dispersant, and the product is treated by azeotropic distillation. The phase transformation of alumina during the calcination process can be described as amorphous AlO → ?-AlO → ?-AlO → ?-AlO. The crystal grain size and density of ultrafine alumina powder increase with the increase of the calcination temperature. After AACH has been calcined at 1200°C for 2 h, the ultrafine ?-AlO with uniform particle size, spherical shape, and more than 99.97% purity is obtained and its powder is well dispersed.

关键词： calcination temperature     spherical     AACH     carbonate hydroxide     ammonium carbonate    

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Development of solid base catalyst X/Y/MgO/-AlO for optimization of preparation of biodiesel from L.seed

WANG Rui, YANG Song, YIN Shitao, SONG Baoan, BHADURY Pinaki S., XUE Wei, TAO Shuwei, JIA Zhaohui, LIU Da, GAO Liang

《化学科学与工程前沿（英文）》 2008年 第2卷 第4期   页码 468-472 doi: 10.1007/s11705-008-0074-4

摘要： The preparation and regeneration conditions of the identified catalyst X/Y/MgO/-AlO with high catalytic activity were studied and optimized. The biodiesel was prepared by transesterification of seed oil produced in Guizhou with methanol at its reflux temoerature in the presence of X/Y/MgO/-AlO The pilot plant tests were carried out in a 100 L reaction vessel. Both average yield and fatty acid methyl esters (FAME) content reached more than 96.50% under the optimum reaction conditions of the pilot plant tests designed with an oil/methanol molar ratio of 1 : 10, catalyst concentration of 1.00%, and reaction time of 3 h at reflux temperature. In addition, analysis shows that the quality of biodiesel meets the standard EN 14214.

关键词： temperature     presence     addition     catalytic activity     catalyst X/Y/MgO/-AlO    

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Conservation and adaptive reuse of industrial heritage in Shanghai

ZHANG Song

《结构与土木工程前沿（英文）》 2007年 第1卷 第4期   页码 481-490 doi: 10.1007/s11709-007-0065-4

摘要： This paper takes a retrospective review of the evolution of the conservation of industrial heritage in urban Shanghai since the 1990s within the context of the international industrial heritage conservation movement, with the emph

关键词： evolution     industrial     international industrial     retrospective     Shanghai    

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Conservation and adaptive-reuse of historical industrial building in China in the post-industrial era

WANG Jianguo, JIANG Nan

《结构与土木工程前沿（英文）》 2007年 第1卷 第4期   页码 474-480 doi: 10.1007/s11709-007-0064-5

摘要： The conservation and adaptive-reuse of historical industrial building is one of the most important issues to be solved in today s urban development and construction in China. In this paper, the necessity and academic meaning of the conservation and adaptive-reuse of historical industrial building were discussed by reviewing its development rend both at home and abroad, and the basic contents of the implementation of the conservation and adaptive-reuse of historical industrial building in China with specific cases provided were analyzed. It is the central task for China to put forward the restructuring and design methods, assessment principles and relevant core technical specifications based on the empirical researches on the historical industrial building and site.

关键词： historical industrial     industrial building     implementation     adaptive-reuse     empirical    

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Can industrial intelligence promote industrial transformation? ––Case of mining enterprises

Anlin SHAO

《工程管理前沿（英文）》 2017年 第4卷 第3期   页码 375-378 doi: 10.15302/J-FEM-2017108

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Industrial water treatment and industrial marine outfalls: Achieving the right balance

Adrian W. K. Law,Chunyan Tang

《化学科学与工程前沿（英文）》 2016年 第10卷 第4期   页码 472-479 doi: 10.1007/s11705-016-1592-0

摘要： Industrial water treatment and industrial marine outfalls both function together to reduce the pollutant concentrations in the effluent and mitigate the potential impact on the environment. The former uses environmental treatment technology with energy and material cost considerations, while the latter utilizes the natural assimilation potential of the coastal water environment achievable at the outfall location. Because of their synergistic nature, marine outfalls are now commonly used for the disposal of partially treated domestic and industrial effluents in many coastal cities around the world, with many successful examples of low and acceptable risks to the environment. The objective of this paper is to review their balance from both environmental and economic considerations. We also discuss the end-of-the-pipe and mixing zone approaches for industrial effluents, and give some recommendations particularly for developing countries. Finally, we emphasize that a compulsory and vigorous monitoring program is essential regardless of how the balance is achieved.

关键词： industrial effluent treatment     industrial marine outfalls     economic and environmental considerations    

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Industrial solid waste flow analysis of eco-industrial parks: implications for sustainable waste management

Yongpeng Lü, Kai YANG, Yue CHE, Zhaoyi SHANG, Jun TAI, Yun JIAN

《环境科学与工程前沿（英文）》 2012年 第6卷 第4期   页码 575-587 doi: 10.1007/s11783-011-0344-0

摘要： Sustainable waste management in the industrial ecology perspective brings enormous challenges to the existing methodology of waste analysis at the industrial park (IP) scale. In this study, a four-step method was proposed for industrial solid waste (ISW) flow analysis of eco-industrial parks (EIPs) and applied to two IPs in eastern China. According to a park-wide census of 619 industrial enterprises and 105 questionnaires by a survey from 2006 to 2008, the results indicated that: 1) at the enterprise scale, more than 60% of enterprises were small-ISW-generation enterprises which encountered great difficulties on effective waste management; 2) at the IP scale, though the two IPs have set up their own environmental management systems and passed the ISO 14001 certification, the efficiencies of the ISW management systems have yet to be improved in the industrial ecology perspective; and 3) at the regional scale, more than 97% of ISW flowed within the provincial region, indicating that the provincial governments prevented the wastes from flowing into their own “back yard”. Effective waste management should be placed in a broader perspective. Approaches to sustainable waste management may include wastes exchange, efficient waste and information flow, virtual EIP, waste minimization clubs and regionalization of waste management.

关键词： industrial solid waste     waste flow analysis     eco-industrial parks     sustainable waste management     “not in my back yard”    

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Forecasting industrial emissions: a monetary approach

Yang DONG, Yi LIU, Jining CHEN, Yebin DONG, Benliang QU

《环境科学与工程前沿（英文）》 2012年 第6卷 第5期   页码 734-742 doi: 10.1007/s11783-012-0451-6

摘要： Forecasts of industrial emissions provide a basis for impact assessment and development planning. To date, most studies have assumed that industrial emissions are simply coupled to production value at a given stage of technical progress. It has been argued that the monetary method tends to overestimate pollution loads because it is highly influenced by market prices and fails to address spatial development schemes. This article develops a land use-based environmental performance index (L-EPI) that treats the industrial land areas as a dependent variable for pollution emissions. The basic assumption of the method is that at a planning level, industrial land use change can represent the change in industrial structure and production yield. This physical metric provides a connection between the state-of-the-art and potential impacts of future development and thus avoids the intrinsic pitfalls of the industrial Gross Domestic Product-based approach. Both methods were applied to examine future industrial emissions at the planning area of Dalian Municipality, North-west China, under a development scheme provided by the urban master plan. The results suggested that the L-EPI method is highly reliable and applicable for the estimation and explanation of the spatial variation associated with industrial emissions.

关键词： industrial emissions     environmental performance index     spatial planning     industrial land use    

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Erratum to: Industrial water treatment and industrial marine outfalls: Achieving the right balance

Adrian W. K. Law, Chunyan Tang

《化学科学与工程前沿（英文）》 2017年 第11卷 第2期   页码 290-290 doi: 10.1007/s11705-017-1639-x

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Problems, potentials and future of industrial crystallization

J. Ulrich, P. Frohberg

《化学科学与工程前沿（英文）》 2013年 第7卷 第1期   页码 1-8 doi: 10.1007/s11705-013-1304-y

摘要： This review discusses important research developments and arising challenges in the field of industrial crystallization with an emphasis on recent problems. The most relevant areas of research have been identified. These are the prediction of phase diagrams; the prediction of effects of impurities and additives; the design of fluid dynamics; the process control with process analytical technologies (PAT) tools; the polymorph and solvate screening; the stabilization of non-stable phases; and the product design. The potential of industrial crystallization in various areas is outlined and discussed with particular reference to the product quality, process design, and control. On this basis, possible future directions for research and development have been pointed out to highlight the importance of crystallization as an outstanding technique for separation, purification as well as for product design.

关键词： industrial crystallization     potentials and future     product design    

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标题 作者 时间 类型 操作

Synthesis, characterization and hydrotreating performance of supported tungsten phosphide catalysts

SUN Guida, LI Cuiqing, ZHOU Zhijun, LI Fengyan

期刊论文

Catalytic activity of cerium-doped Ru/AlO during ozonation of dimethyl phthalate

ZHOU Yunrui, ZHU Wanpeng, CHEN Xun

期刊论文

Reductive amination of -hexanol to -hexylamine over Ni–Ce/-AlO catalysts

期刊论文

Cu/Cr co-stabilization mechanisms in a simulated AlO-FeO-CrO-CuO waste system

期刊论文

Growth and properties analysis of metal-organic chemical vapor deposited MgZnO films on -AlO substrates

SHI Zengliang, LIU Dali, YAN Xiaolong, GAO Zhongmin, BAI Shiying

期刊论文

Preparation of ultrafine α-AlO using precipitation-azeotropic distillation method

XIAO Jin, QIN Qi, ZHOU Feng, CHEN Yanbin, WAN Ye

期刊论文

Development of solid base catalyst X/Y/MgO/-AlO for optimization of preparation of biodiesel from L.seed

WANG Rui, YANG Song, YIN Shitao, SONG Baoan, BHADURY Pinaki S., XUE Wei, TAO Shuwei, JIA Zhaohui, LIU Da, GAO Liang

期刊论文

Conservation and adaptive reuse of industrial heritage in Shanghai

ZHANG Song

期刊论文

Conservation and adaptive-reuse of historical industrial building in China in the post-industrial era

WANG Jianguo, JIANG Nan

期刊论文

Can industrial intelligence promote industrial transformation? ––Case of mining enterprises

Anlin SHAO

期刊论文

Industrial water treatment and industrial marine outfalls: Achieving the right balance

Adrian W. K. Law,Chunyan Tang

期刊论文

Industrial solid waste flow analysis of eco-industrial parks: implications for sustainable waste management

Yongpeng Lü, Kai YANG, Yue CHE, Zhaoyi SHANG, Jun TAI, Yun JIAN

期刊论文

Forecasting industrial emissions: a monetary approach

Yang DONG, Yi LIU, Jining CHEN, Yebin DONG, Benliang QU

期刊论文

Erratum to: Industrial water treatment and industrial marine outfalls: Achieving the right balance

Adrian W. K. Law, Chunyan Tang

期刊论文

Problems, potentials and future of industrial crystallization

J. Ulrich, P. Frohberg

期刊论文