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Showing 1 to 15 of 35 results Save | Export
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Ye Jiang; Xin Sun; Guomeng Zhang; Da Han; Zhengda Yang – Journal of Chemical Education, 2024
The flue gas from waste incineration power plants contains high-level zinc species that may deactivate the catalyst for selective catalytic reduction (SCR) of nitrogen oxides (NO[subscript x]) with NH[subscript 3]. A comparison experiment was designed to investigate the effect of different types and Zn/Ce molar ratios on the performance of…
Descriptors: Science Education, Scientific Concepts, Science Laboratories, Science Experiments
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Yunhua Li; Weizhong Liao; Cuixue Chen; Meiling Ye; Alexander Luis Imbault – Journal of Chemical Education, 2023
The electrolysis of water to produce hydrogen is a critical step in many green chemistry processes. The key to the efficiency of water electrolysis is the synthesis of an appropriate electrocatalyst. Three-dimensional (3D) printing is an increasingly important part of many industrial processes. In this study, we propose an efficient laboratory…
Descriptors: Printing, Computer Peripherals, Educational Technology, Chemistry
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Acuña-Girault, Adalberto; Gómez del Campo-Rábago, Ximena; Contreras-Ruiz, Marco Antonio; Ibanez, Jorge G. – Journal of Technology and Science Education, 2022
During the SARS-2-COVID pandemic our institution sought to continue the teaching and learning of experimental laboratories by designing, assembling, and delivering a microscale chemistry kit to the students' homes. Thanks to this approach students were able to perform [approximately]25 experiments during each one of the Fall 2020 and Spring 2021…
Descriptors: COVID-19, Pandemics, Science Instruction, Science Laboratories
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Piergiovanni, Polly R.; Goundie, David A. – Chemical Engineering Education, 2019
Chemical engineering is a challenging field to explain to first-year students. Food production processes are a safe and accessible way to introduce the students to basic engineering concepts. Modernist cuisine -- using scientific methods and engineering techniques to enhance classical cooking -- was used as a hook to capture the attention of…
Descriptors: Chemical Engineering, College Science, Food, Scientific Concepts
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Finberg, Ethan Abraham; Griffin, David Michael; Shiflett, Mark Brandon – Chemical Engineering Education, 2020
A Unit Operations Laboratory (UOL) is fundamental to undergraduate chemical engineering education. This article discusses a new course structure for the University of Kansas UOL and details for three new experiments covering the fundamentals of vapor-liquid equilibrium, fluid mechanics, and kinetics. Students apply knowledge from these courses as…
Descriptors: Chemical Engineering, Science Laboratories, College Science, Science Instruction
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Cooper, Tyler; Trafford, Russell; Attaluri, Anilchandra; Vernengo, Andrea Jennifer – Chemical Engineering Education, 2018
This paper describes an undergraduate laboratory experiment where students study the heating behavior of magnetic nanoparticles in the presence of alternating magnetic fields. Average score on the post-test was 45±12% for students who completed the lab online, versus 43±11% for those doing the activity hands-on. Post-test scores were significantly…
Descriptors: Science Laboratories, Undergraduate Students, Heat, Magnets
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Orbey, Nese; De Jesús Vega, Marisel; Zalluhoglu, Fulya Sudur – Chemical Engineering Education, 2017
A general tank-draining problem was used as an experimental project in two undergraduate-level chemical engineering courses. The project aimed to illustrate the critical nature of experimentation in addition to use of mass and energy conservation principles in developing mathematical models that correctly describes a system. The students designed…
Descriptors: Science Instruction, Scientific Concepts, Chemistry, College Science
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Ramalho, Maria J.; Pereira, M. Carmo – Journal of Chemical Education, 2016
In this work, a laboratory experiment to introduce graduate students to nanotechnology is described. Students prepared poly(lactic-"co"-glycolic acid) (PLGA) nanoparticles using two different synthesis procedures, a single and a double emulsion-solvent evaporation method. The students also performed a physicochemical characterization of…
Descriptors: Science Instruction, Science Laboratories, Laboratory Experiments, Science Experiments
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Honda, Gregory S.; Pazmino, Jorge H.; Hickman, Daniel A.; Varma, Arvind – Chemical Engineering Education, 2015
A chemical engineering PhD student from Purdue University completed an internship at The Dow Chemical Company, evaluating the effect of scale on the hydrodynamics of a trickle bed reactor. A unique aspect of this work was that it arose from an ongoing collaboration, so that the project was within the scope of the graduate student's thesis. This…
Descriptors: Chemical Engineering, Lifelong Learning, Graduate Students, Internship Programs
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Fink, Aaron H.; Luyben, William L. – Chemical Engineering Education, 2015
Flooded heat exchangers are often used in industry to reduce the required heat-transfer area and the size of utility control valves. These units involve a condensing vapor on the hot side that accumulates as a liquid phase in the lower part of the vessel. The heat transfer occurs mostly in the vapor space, but the condensate becomes somewhat…
Descriptors: Equipment, Heat, Chemical Engineering, Science Experiments
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Taipa, M. A^ngela; Azevedo, Ana M.; Grilo, Anto´nio L.; Couto, Pedro T.; Ferreira, Filipe A. G.; Fortuna, Ana R. M.; Pinto, Ine^s F.; Santos, Rafael M.; Santos, Susana B. – Journal of Chemical Education, 2015
An integrative laboratory study addressing fundamentals of enzyme catalysis and their application to reactors operation and modeling is presented. Invertase, a ß-fructofuranosidase that catalyses the hydrolysis of sucrose, is used as the model enzyme at optimal conditions (pH 4.5 and 45 °C). The experimental work involves 3 h of laboratory time…
Descriptors: Cooperative Learning, Science Experiments, College Science, Undergraduate Study
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Trujilo-de Santiago, Grissel; Rojas-de Gante, Cecillia; García-Lara, Silverio; Ballesca´-Estrada, Adriana; Alvarez, Marion Moise´s – Journal of Chemical Education, 2014
A simple experiment designed to study mixing of a material of complex rheology in a stirred tank is described. Non-Newtonian suspensions of blue maize flour that naturally contain anthocyanins have been chosen as a model fluid. These anthocyanins act as a native, wide spectrum pH indicator exhibiting greenish colors in alkaline environments, blue…
Descriptors: Science Experiments, Science Instruction, Scientific Concepts, Chemistry
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Mendez, Sergio; AungYong, Lisa – Chemical Engineering Education, 2014
To help students make the connection between the concepts of heat conduction and convection to real-world phenomenon, we developed a combined experimental and computational module that can be incorporated into lecture or lab courses. The experimental system we present requires materials and apparatus that are readily accessible, and the procedure…
Descriptors: Heat, Thermodynamics, Scientific Concepts, Science Education
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Jacobberger, Robert M.; Machhi, Rushad; Wroblewski, Jennifer; Taylor, Ben; Gillian-Daniel, Anne Lynn; Arnold, Michael S. – Journal of Chemical Education, 2015
Graphene's unique combination of exceptional mechanical, electronic, and thermal properties makes this material a promising candidate to enable next-generation technologies in a wide range of fields, including electronics, energy, and medicine. However, educational activities involving graphene have been limited due to the high expense and…
Descriptors: Science Instruction, Secondary School Science, High Schools, College Science
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Saatadjian, Esteban; Lesage, Francois; Mota, Jose Paulo B. – Chemical Engineering Education, 2013
A project that involves the numerical simulation of transport phenomena is an excellent method to teach this subject to senior/graduate chemical engineering students. The subject presented here has been used in our senior/graduate course, it concerns the study of natural convection heat transfer between two concentric, horizontal, saturated porous…
Descriptors: Science Instruction, Chemical Engineering, College Science, College Students
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