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Carbon Dioxide Sequestration via Steelmaking Slag Carbonation in Alkali solutions: Experimental Investigation and process Evaluation

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Acta Metallurgica Sinica(English Letters) 2018年第7期31卷 771-784页

作者： Chen-Ye Wang Wei-Jun Bao Zhan-Cheng Guo Hui-Quan Li State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing Key Laboratory of Green process and Engineering National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology Institute of Process EngineeringChinese Academy of Sciences

Carbon dioxide mineral sequestration with steelmaking slag is a promising method for reducing carbon dioxide in a large- scale setting. Existing calcium oxide or calcium hydroxide in steelmaking slag can be easily leached by water, and the formed calcium carbonate can be easily wrapped on the surface of unreacted steelmaking slag particles. Thus, further increase in the carbonation reaction rate can be prevented. Enhanced carbon dioxide mineral sequestration with steel- making slag in dilute alkali solution was analysed in this study through experiments and process evaluation. Operating conditions, namely alkali concentration, reaction temperature and time, and liquid-to-solid ratio, were initially investigated. Then, the material and energy balance of the entire process was calculated, and the net carbon dioxide sequestration efficiency at different reaction times was evaluated. Results showed that dilute alkali solution participated in slowing down the leaching of active calcium in the steelmaking slag and in significantly improving carbonation conversion rate. The highest carbonation conversion rate of approximately 50% can be obtained at the optimal conditions of 20 g/L alkali concentration, 2 mL/L liquid-to-solid ratio, and 70 ℃ reaction temperature. Carbonation reaction time significantly influences the net carbon dioxide sequestration efficiency. According to calculation, carbon dioxide emission of 52.6 kg/t- slag was avoided at a relatively long time of 120 min.

关键词： Steelmaking slag Dilute alkali solution COe mineral sequestration. process evaluation

Enzymatic oxidation of aqueous pentachlorophenol

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Journal of Environmental Sciences 2007年第9期19卷 1032-1036页

作者： E. Y. Kim H. J. Chae K. H. Chu Department of Chemical Engineering The University of Seoul Seoul 130-743 Korea. Departments of Food and Biotechnology and Innovative Industrial Technology Hoseo University Asan 336-795 Korea honeywell process solutions 17 Changi Business Park Central 1 Singapore 486073

The influence of the nonionic surfactant Tween 80 on pentachlorophenol （PCP） oxidation catalyzed by horseradish peroxidase was studied. The surfactant was tested at concentrations below and above its critical micelle concentration （CMC）. Enhancement of PCP removal was observed at sub-CMCs. The presence of Tween 80 in the reaction mixture reduced enzyme inactivation which occurred through a combination of free radical attack and sorption by precipitated products. A simple first-order model was able to simulate time profiles for enzyme inactivation in the presence or absence of Tween 80. At supra-CMCs, the surfactant caused noticeable reductions in PCP removal, presumably through micelle partitioning of PCP which precluded the hydrophobic PCP molecule from interacting with the enzyme.

关键词： biocatalysis horseradish peroxidase pentachlorophenol surfactant

A NEW NON-INVASIVE METHOD FOR VALVE STICTION DECTION USING WAVELET TECHNOLOGY

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Journal of Electronics(China) 2009年第5期26卷 673-680页

作者： Xu Zhanyang Charles Zhan Zhang Shunyi Institute of Information Network Technology Nanjing University of Posts ＆ Telecommunications Nanjing 210003 China Department of Computer Sciences~ Nanjing University of Information Science and Technology Nanjing 210044 China Advanced process Control Research and Development Group Honeywell Process Solutions Phoenix AZ 85027 USA

In this letter, we present a novel approach of valve stiction detection using wavelet technology. A new non-invasive method is developed with the closed-loop normal operating data. The redundant dyadic discrete wavelet transform is used to decompose the data at different resolution scales. Based on the Lipschitz regularity theory, wavelet coefficients analysis across scales is performed to detect the jumps in the controlled variables. Adaptive wavelet de-noising is then applied to the data. Features of the valve stiction patterns are extracted from the de-noised data and the valve stiction probability is calculated.

关键词： Valve stiction Wavelet de-noising Jump Features extraction

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迁移DCS 实现功能升级

软件 2010年第4期31卷 36-37页

作者： Joe Paradiso honeywell process solutions

通过对工艺控制系统进行升级，酵母生产商可充分利用新型网络和仪器所具有的功能。而使用诊断性能较好的智能变送器时，需要改进控制系统和网络基础设施。

关键词：功能升级 DCS 工艺控制系统网络基础设施迁移智能变送器生产商

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什么是可持续性?

软件 2010年第4期31卷 46-47页

作者： Brendan Sheehan honeywell process solutions

高效节能、更加环保、可持续性三者之间有什么区别吗？如果你觉得这个听起来像是一个捉弄人的问题，那你也不是唯一这么认为的。正是因为不绝于耳的环保主义论调和全球变暖的现实，这三者之间的界限才变得模糊，而且通常认为它们是同义... 详细信息

高效节能、更加环保、可持续性三者之间有什么区别吗？如果你觉得这个听起来像是一个捉弄人的问题，那你也不是唯一这么认为的。正是因为不绝于耳的环保主义论调和全球变暖的现实，这三者之间的界限才变得模糊，而且通常认为它们是同义元素。

关键词：可持续性环保主义高效节能全球变暖元素

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过程工程学报 2013年第4期13卷 541-547页

作者：毛在砂杨超 Key Laboratory of Green process and Engineering Institute of Process EngineeringCAS

Similarity solution is a classical topic in chemical engineering,frequently encountered in analysis of flow and transport phenomena in semi-infinite *** this article,dimensional analysis is applied to resolve systematically the conditions for the existence of similarity solutions and formulate a basic procedure to get such *** several classic examples,the method for finding the suitable combination of independent variables from original ones is demonstrated,so that the original partial differential equation can be transformed into a simpler ordinary differential equation,through which the desired similarity solution is finally ***-depth analysis of one-dimensional diffusion/reaction problems by dimensional analysis results in some new *** elaboration is significant for deep insight of similarity solution and its application in chemical engineering.

关键词：过程工程 ODE PDE 二氧化碳

Synthesis of Novel Chelating Adsorbents for Boron Uptake from Aqueous solutions

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过程工程学报 2006年第3期6卷 375-379页

作者：王丽娜齐涛张懿 Lab. Green process and Engineering Inst. Process EngineeringCASBeijing 100080China Graduate University of Chinese Academy of SciencesBeijing 100049China Lab. Green process and Engineering Inst. Process EngineeringCASBeijing 100080China

Two kinds of novel chelating adsorbents have been synthesized to separate boron from aqueous solutions. One is the boron-specific chelating resin,synthesized by the functionalization of macroporous poly (glycidyl methacrylate-co-trimethylolpropane trimethacrylate),with N-methylglucamine. The other is the organic-inorganic hybrid mesoporous SBA-15 with polyol functional groups,prepared by a two-step post-grafting method. The resin can adsorb boron in almost all pH range,and its maximum uptake capacity reaches 1.15 mmol/g. The present study of the polyol-functionalized SBA-15 shows that the post-grafting is successful and the resulting adsorbent has the uptake capacity of 0.63 mmol/g.

关键词： boron adsorbent chelating resin organic-inorganic hybrid mesoporous SBA-15 uptake capacity

Heat of absorption of CO_2 in aqueous N,N-diethylethanolamine+ N-methyl-1,3-propanediamine solutions at 313 K

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Chinese Journal of Chemical Engineering 2019年第3期27卷 628-633页

作者： Katarzyna Sobala Hanna Kierzkowska-Pawlak Lodz University of Technology Faculty of Process and Environmental Engineering

Differential heat of absorption of CO_2 in aqueous solutions of N,N-diethylethanolamine(DEEA) and activated DEEA solutions up to a total concentration of 2 mol·L^(-1) was measured as a function of CO_2 loading at 313.15 K using a reaction calorimeter. In order to analyze the performance of N-methyl-1,3-propanediamine(MAPA)as an activator, DEEA blended solutions containing 0.05, 0.1 and 0.2 mol·L^(-1) MAPA were studied. The heat of CO_2 absorption in single DEEA solutions was unaffected by changing the DEEA concentration in the range of(0.5–2) mol·L^(-1). On the other hand, increasing the concentration of MAPA in aqueous amine mixtures of(DEEA + MAPA) raised the heat of absorption.

关键词： CO2 capture Differential heat of absorption N,N-diethylethanolamine N-methyl-1,3-propanediamine Amine blends

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应用小波的PV振荡周期多分辨率检测

应用科学学报 2010年第1期28卷 60-64页

作者：徐占洋 Charles ZHAN 张顺颐南京邮电大学江苏省信息网络研究中心南京信息工程大学计算机与软件学院 Advanced process Control Research and Development Group Honeywell Process SolutionsPhoenixAZ85027USA

该文提出了一种新的使用小波技术检测PV数据信号振荡周期的方法.首先使用小波技术对PV数据进行降噪;然后在不同分辨率上,应用冗余二进制离散小波变换(DDWT)来分解PV振荡信号,并检测该信号的小波系数极值,重构PV信号,避免降噪后的PV信号... 详细信息

该文提出了一种新的使用小波技术检测PV数据信号振荡周期的方法.首先使用小波技术对PV数据进行降噪;然后在不同分辨率上,应用冗余二进制离散小波变换(DDWT)来分解PV振荡信号,并检测该信号的小波系数极值,重构PV信号,避免降噪后的PV信号失真;最后基于本文提出的新算法,计算获得PV振荡信号的周期.

关键词：周期检测 PV振荡信号二进制离散小波变换小波系数极值