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Topic: Chemical reactor

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	Chemical reactor Summary
		While the reactor is in a transient state the model equation must be derived from the differential mass and energy balances.
		In these cases, the sizes of the reactors may be varied in order to minimize the total capital investment required to implement the process.
		In this type of reactor, the reaction rate is a gradient; at the inlet to the PFR the rate is very high, but as the concentrations of the reagents decrease and the concentration of the product(s) increases the reaction rate slows.
	www.bookrags.com /Chemical_reactor (1008 words)

	Chemical reactor - Wikipedia, the free encyclopedia
		Chemical reactors are vessels that are designed for a chemical reaction to occur inside of them.
		In these cases, the sizes of the reactors may be varied in order to minimize the total capital investment required to implement the process.
		In this type of reactor, the reaction rate is a gradient ; at the inlet to the PFR the rate is very high, but as the concentrations of the reagents decrease and the concentration of the product(s) increases the reaction rate slows.
	en.wikipedia.org /wiki/Chemical_reactor (782 words)

	World Intellectual Property Organization (Site not responding. Last check: 2007-09-16)
		The chemical reactor is formed as a monolithically integrated structure, generally comprised of a plurality of thin ceramic layers that are assembled and having the porous ceramic material formed on a surface of the ceramic layers.
		A chemical reactor as claimed in claim 5 wherein the catalyst material is chosen from the group consisting of: a hydrated metal salt, an active metal, an active metal oxide, an active metal oxychloride, an active metal oxynitride, or a combination of an active metal and an active metal oxide.
		A chemical reactor as claimed in claim 4 wherein a plurality of ceramic structures are formed within the ceramic cavity structure thereby defining a plurality of channels, the porous ceramic support layer being formed on a plurality of surfaces of the plurality of channels.
	www.wipo.int /ipdl/IPDL-CIMAGES/view/pct/getbykey5?KEY=03/86613.031023&ELEMENT_SET=DECL (7186 words)

	Chemical reaction - Encyclopedia.WorldSearch (Site not responding. Last check: 2007-09-16)
		A chemical reaction does not change the nucleus of the atom in any way, only the interaction of the electron clouds of the involved atoms.
		A chemical reaction almost always involves a change in energy, conveniently measured in terms of heat.
		Chemical equilibrium is the state in which the forward and reverse reaction rates are equal, thus preserving the amount of reactants and products.
	encyclopedia.worldsearch.com /chemical_reaction.htm (768 words)

	Green Chemical Reactor Engineering -- XI
		Chemical reactor engineers will be pivotal in the discovery and implementation of new environmentally acceptable products and processes, safety strategies and policies, computer modeling for process control and process simulation.
		Mitigation of the effect of chemical process effluents in soil, air and water are at the forefront of society's concerns.
		The several plenary lectures planned for "CRE XI: Chemical Reactor Engineering Meeting The Challenges For New Technology" Conference of the ECI will be accompanied by short presentations of a significant number of refereed papers (5-10 min), combined with poster display of these presentations and plenary sessions for poster paper discussion.
	www.eurekalert.org /pub_releases/2006-12/eci-gcr122706.php (822 words)

	Reactor article - Reactor chemical kinetics nuclear reactor arcade game Atari 2600 Gottlieb - What-Means.com (Site not responding. Last check: 2007-09-16)
		A chemical reactor where many of the chemical processes occur.
		It is the job of a chemical engineer to ensure that a reaction proceeds with the highest efficiency, producing the purest product using the least possible amount of energy.
		Reactor is an arcade game, also released for the Atari 2600, produced by Gottlieb.
	www.what-means.com /encyclopedia/Reactor (110 words)

	Chemical Reactor Control from ControlSoft, Inc. - Advanced Process Control Made Easy
		This kind of application uses a traditional chemical reactor or autoclave chamber that is enclosed by a heating/cooling jacket.
		The chemical reaction, typically a batch operation, is heated or cooled according to the batch recipe.
		The reactor is heated and cooled by a circulating heat transfer medium that needs to operate within a wide range of temperatures to meet the requirements of each phase of the recipe.
	www.controlsoftinc.com /mantra-chemicalreactors.shtml (653 words)

	Patent Issued for Novel Chemical Reactor (Site not responding. Last check: 2007-09-16)
		Chemical reactors are the heart of chemical manufacturing, determining raw materials, products, byproducts, energy consumption, and capital and operating costs.
		Three types of single-tube reactors were built: a state-of-the-art reactor with nonpermeable walls, one with porous walls without permeability reduction and one with porous walls with reduced permeability (the novel SRI reactor).
		A bench-scale reactor was built and operated to obtain data and evaluate performance.
	www.sri.com:8000 /news/releases/1-20-97.html (699 words)

	Reactor (Site not responding. Last check: 2007-09-16)
		Reactors deal with several aspects of chemical A chemical reactor where many of the processes occur.
		is the job of a chemical engineer ensure that a reaction proceeds with the efficiency producing the purest product using the possible amount of energy.
		Reactor (game) was an arcade game also for the Atari 2600 ; and produced by Gottlieb.
	www.freeglossary.com /Reactor (494 words)

	S7G reactor (Site not responding. Last check: 2007-09-16)
		The S7G was a design of United States Naval reactor that did not use control rods.
		It was tested in the early 1980s at the Modifications and Additions Reactor Facility (MARF).
		Instead of moveable hafnium -based control rods which are used in other United States Navy reactors reactivity in the S7G core controlled by stationary hafnium-clad tubes partially filled water.
	www.freeglossary.com /S7G_reactor (652 words)

	GI Quarterly - Chemical Reactor (Site not responding. Last check: 2007-09-16)
		At least 10 instruments will be set up inside the remote lab in March, soon after the sun returns to create a host of chemical reactions in the troposphere, which extends from ground level to about six miles high.
		Trace chemicals and compounds in the air that have built up as a result of man's polluting activities will be measured in addition to greenhouse gases, such as carbon monoxide and carbon dioxide and methane, thought to be culprits of global climate change.
		"Chemicals in arctic air are easy to monitor because the polar atmosphere is relatively simple: it contains a stable air mass underlain most of the year by an ice surface, with no large trees around to inject chemicals in it, no dust storms, and no polluting industry nearby," Shaw said.
	www.gi.alaska.edu /giquarterly/Q95_1/nf/reactor.html (430 words)

	558.685-062 - CHEMICAL OPERATOR II (chemical) alternate titles: reactor operator - DOT Dictionary of Occupational ...
		Observes chemical reactions; monitors gauges, signals, and recorders; and receives notification from control laboratory, supervisor, or other workers to make specified operating adjustments.
		May perform chemical tests on product to ensure conformance with specifications, using standard test equipment, materials, and procedure.
		May be designated according to substance processed as Low-Chloride Soda Operator (chemical); Salt-Plant Operator (chemical); Sodium-Methylate Operator (chemical); equipment tended as Styrene-Dehydration-Reactor Operator (chemical); Tower Operator (chemical) II; or reaction produced as Emulsification Operator (oils & grease); Precipitation Equipment Tender (chemical).
	www.occupationalinfo.org /55/558685062.html (184 words)

	Amazon.co.uk: Books: Modelling of Chemical Kinetics and Reactor Design (Site not responding. Last check: 2007-09-16)
		An understanding of chemical reaction kinetics and the design of chemical reactors is key to the success of the of the chemist and the chemical engineer in such an endeavor.
		In addition to covering fluid mixing, the treatment of wastewater, and chemical reactor modeling, the author includes sections on safety in chemical reaction and scale-up, two topics that are often neglected or overlooked.
		As a real-world introduction to the modeling of chemical kinetics and reactor design, the author includes a case study on ammonia synthesis that is integrated throughout the text.
	www.amazon.co.uk /exec/obidos/ASIN/0884154815 (587 words)

	Chemical reactor clamp patent invention
		The rod also becomes the pivot point for rotation of the clamp (and the reactor it is holding), due to the relationship between the clamp and the clamp rod.
		[0011] The present invention is a chemical reactor clamp for supporting a glassware or equivalent chemical reactor having a neck.
		Preferably, the spring biased yoke is a resilient metal strip having an open end and opposing arc sections for clamping to opposing sections of a chemical reactor neck.
	www.freshpatents.com /Chemical-reactor-clamp-dt20060817ptan20060180727.php (1248 words)

	Laminated Microchannel Chemical Reactor (Site not responding. Last check: 2007-09-16)
		The reactor section has an interior microchannel reaction chamber, a quench chamber, and a preheat chamber.
		The reactor body was constructed using eight different shim patterns and two solid metal end blocks.
		The reactor and combustor chambers are machined and polished to provide smooth surfaces for sealing.
	www.technet.pnl.gov /dme/micro/microchannel.stm (246 words)

	Chemical Reactor Engineering
		We have concentrated on a few important reactor types for detailed study using experiments and CFD techniques: (1) bubble column slurry reactors, (2) gas-solid bubbling fluidized beds and (3) structured catalytically packed reactors.
		The conventional trickle bed reactor cannot be used for counter-current contacting because of the danger of flooding when using small catalyst particles.
		The know-how we have generated in the area of CFD modelling of distillation sieve trays is of interest to industry and it is the intention to transfer this know-how.
	www-its.chem.uva.nl /research/cr/research/research.html (2513 words)

	Stress corrosion cracking of chemical reactor (Site not responding. Last check: 2007-09-16)
		The catastrophic explosion at Flixborough in June 1974 has been traced to the failure of a bypass assembly introduced into a train of six cyclohexane oxidation reactors after one of the reactors was removed owing to the development of a leak.
		The leaking reactor, like the others, was constructed of 12.3 mm mild steel plate with 3 mm stainless steel bonded to it, and it developed a vertical crack in the mild steel outer layer of the reactor from which cyclohexane leaked leading to the removal of the reactor.
		One of the factors contributing to the crack was stress corrosion, resulting from the presence of nitrates that had contaminated river water being used to cool a leaking flange.
	www.corrosion-doctors.org /ProcessIndustry/flixborough.htm (293 words)

	SRI: PSD's PERMIX, Novel Reactor
		This new reactor uses the progressive addition of one reactant permeating all along the reactor and mixing in the entire volume of the reactor to minimize or eliminate local high concentration gradients and hot spots as well as to control the ratio of the reactants as the reaction proceeds.
		A process incorporating a conventional falling-film reactor was used as the base case for comparison with a process using the new SRI reactor.
		To make a conservative estimate for the porous tube SRI reactor, the cost per unit area of specialty filters using about the same number of the same porous metal tubes was multiplied by three for the cost of the SRI reactor.
	www.sri.com /psd/technologies/permix.html (1414 words)

	Amazon.com: Chemical Reactor Design and Operation, 2E: Books: K. Roel Westerterp,W. P. M. Van Swaaij,A. A. C. M. ... (Site not responding. Last check: 2007-09-16)
		Chemical Reactor Design and Operation K. Westerterp, W. van Swaaij and A. Beenackers Chemical Reaction Engineering Laboratories, Twente University of Technology, Enschede, The Netherlands This is a comprehensive handbook on the design and operation of chemical reactors which are vital elements in every manufacturing process.
		Much effort is dedicated to the behaviour of reactors in practice and to the capacity, yield and selectivity of the reactor.
		Several new reactor types and new processes have been developed at their institute and present research interests include gasification, fluidization and gas—liquid reactors, three-phase reactors, high-pressure technology in chemical reaction engineering, thermal behaviour of heterogeneous reactors and computer design and economic evaluation of reaction units and chemical plants.
	www.amazon.com /Chemical-Reactor-Design-Operation-2E/dp/0471917303 (1152 words)

	Wiley::Chemical Reactor Design and Operation, Second Edition
		Chemical Reactor Design and Operation K. Westerterp, W. van Swaaij and A. Beenackers Chemical Reaction Engineering Laboratories, Twente University of Technology, Enschede, The Netherlands This is a comprehensive handbook on the design and operation of chemical reactors which are vital elements in every manufacturing process.
		Much effort is dedicated to the behaviour of reactors in practice and to the capacity, yield and selectivity of the reactor.
		Several new reactor types and new processes have been developed at their institute and present research interests include gasification, fluidization and gas—liquid reactors, three-phase reactors, high-pressure technology in chemical reaction engineering, thermal behaviour of heterogeneous reactors and computer design and economic evaluation of reaction units and chemical plants.
	www3.interscience.wiley.com:8100 /WileyCDA/WileyTitle/productCd-0471917303.html (299 words)

	Kinetic Technologies Software Products: Chemical Workbench KHIMERA CARAT-MB (Site not responding. Last check: 2007-09-16)
		The fist one is "Chemical Workbench" for kinetic simulation and conceptual design in the field of combustion, plasmas, catalysis, chemical vapor deposition, reaction kinetics in liquids etc.
		These are unique tools and being combined with "Chemical Workbench" they are forming "bridge" from quantum chemistry and fundamental experiment to the specialists in the reactor modeling.
		The set of the reactor models is available for examination of reaction kinetics both for homogenous and heterogeneous systems.
	www.kintech.ru /products.htm (1276 words)

	Optimization Framework for the Synthesis of Chemical Reactor Networks - Schweiger, Floudas (ResearchIndex) (Site not responding. Last check: 2007-09-16)
		Abstract: The reactor network synthesis problem involves determining the type, size, and interconnections of the reactor units, optimal concentration and temperature profiles, and the heat load requirements of the process.
		A general framework is presented for the synthesis of optimal chemical reactor networks via an optimization approach.
		The possible design alternatives are represented via a process superstructure which includes continuous stirred tank reactors and cross flow reactors along with mixers...
	citeseer.ist.psu.edu /schweiger98optimization.html (760 words)

	Reactor
		We are convinced that you will find our products and services about our solutions for your work in Reactor useful to ensure the quality of your daily analytical work in the lab.
		The use of automation, parallel tools, and a range of Reactor - analytics - both off-line and in-situ - is changing the way research is done.
		Over 25% of Reactor steps during multiple-stage syntheses in the pharmaceutical and fine chemical industries involve hydrogenations.
	chromatography.mettler-toledo.net /organic-chemistry/reactor.html (440 words)

	Mark Nelson's Research Interest: Chemical Reactor Engineering (Site not responding. Last check: 2007-09-16)
		Different types of dynamic behaviour have been reported experimentally in continuously stirred tank reactors: simple oscillatory ignition, multi-stage ignition, complex ignitions, oscillatory cool flames, steady glow etc. The aim of this work is to identify the bifurcation behaviour of simple chemical reaction schemes and to relate it to the experimental observations.
		A goal of this work is to explore the use of continuously-stirred tank reactors in investigating the flammability of gases produced by the decomposition of polymers.
		A new reactor configuration was designed with the potential for significantly decreasing the processing time.
	www.uow.edu.au /~/mnelson/research.dir/cstr.html (298 words)

	Chemical Reactors, Chemical Reactor Manufacturers Suppliers Exporters of Chemical Reactors (Site not responding. Last check: 2007-09-16)
		Engaged in manufacturing chemical reactors, kettles, distillation units of various types, reaction vessels, horizontal and vertical type storage and measuring tanks.
		Manufacturer and exporter of chemical plant, pharmaceutical plant and process equipment, blenders, mixers, reactors, heat exchangers, auto claves, ball mills, pressure vessels and reaction kettle.
		Engaged in manufacturing of chemical process machinery, resin plant, bulk drug equipment, reaction vessel, centrifuges, condensers, rotary vacuum drier, jet mill, air classifying mill, screw conveyors, drum drier, rotary kilns and rotary drier.
	www.indianchemicalportal.com /chemical-reactors.html (882 words)

	Amazon.ca: Books: Introduction to Chemical Reactor Analysis (Site not responding. Last check: 2007-09-16)
		It is intended for both the senior level undergraduate student in chemical engineering and the working professional who may require an understanding of the basics of this subject.
		An introduction to the basic concepts of chemical reactor analysis and design, for the chemical engineering students, or the working professional in need of a reference.
		Presents the energy balance required for the common reactor, as well as the common techniques used in analyzing these reactors.
	www.amazon.ca /exec/obidos/ASIN/9056993372 (234 words)

	Synthesis of Optimal Chemical Reactor Networks (ResearchIndex) (Site not responding. Last check: 2007-09-16)
		Abstract: The synthesis of optimal reactor networks using a superstructure based approach is considered.
		The fundamental units in the superstructure are the continuous stirred tank reactor (CSTR) and a cross flow reactor (CFR).
		2 Optimization of chemical reactors with respect to flow confi..
	citeseer.ist.psu.edu /74662.html (412 words)

	ChE 430: Chemical Kinetics and Reactor Design
		This course integrates the concepts of chemical kinetics with those of conservation of energy and mass to form a basis for designing common types of reactors (both batch and continuous flow) for operation under both isothermal and nonisothermal conditions.
		Aspects of economics are included via analysis of the influence of differences in reactor size and type and differences in product distributions on process economics and their consequences for process design.
		While developing the skills required to solve problems associated with the heart of chemical processes, namely transformation of feedstocks from one chemical form to another, the course also establishes a basis for a pattern of lifelong learning that fosters integration of concepts from several aspects of science and engineering.
	www.engr.wisc.edu /che/courses/che430.html (527 words)

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