Multiphasic technologies

Considering the transferability of conventional chemical processes to a multiphase technology, Behr [37] made proposals for a formal decision-making process on whether, and how, this transition could be achieved (Figure 9). 

Supported IL process This process is best for gas-liquid multiphasic technology and their applicability remains limited to reactions involving low volatile reactants and products... 

Novel multiphase technology has been coupled with dynamic process simulation, open control system interfaces and a custom user interface to provide a necessary tool for process operators. We hope to be able to report interesting experience and observations from the commissioning of the system. 

Institute for Corrosion and Multiphase Technology, Ohio University, Athens, OH 45701-2979 (USA)... 

Extensive research has been carried out into the effect of slug flow on corrosion rates of carbon steel pipes due to carbon dioxide (see, for example, the research papers from the Institute for Corrosion and Multiphase Technology at Ohio University). 

W. Paul Jepson, Madan Gopal Multiphase Technology Center Ohio University 340 1-2 West State Street Athens, OH 45701-2979 USA... 

Professor Hoffmann has carried out a number of research projects in collaboration with processing industry, mainly the oil and gas industry, specializing in particle and multiphase technology. He is the author of more than 110 scientific articles, two scientific/technical monographs and he has two patents to his name. He used to play the classical guitar, but now mostly makes furniture or works in his garden in Norway in his spare time. He is married to Gloria and has two children. 

In new developments, test separators may be substituted by multiphase metering devices which can quantitatively measure volumes of oil, gas and water without the need of separation. This technology is under development. 

Early ia the development of chemical reaction engineering, reactants and products were treated as existing ia single homogeneous phases or several discrete phases. The technology has evolved iato viewing reactants and products as residing ia interdependent environments, a most important factor for multiphase reactors which are the most common types encountered. 

Table 5.3-2 Different technologies for multiphasic reactions making use of ionic liquids.

Figure 1 Molecular and morphological parameters influencing technological properties of multiphasic polymer blends.

Ozawa M, Akagawea K, Sakaguchi T (1989) Flow instabilities in paraUel-channel flow systems of gas-liquid two-phase mixtures. Int 1 Multiphase Flow 15 639-657 Peles YP (1999) VLSI chip cooling by boiling-two-phase flow in micro-channels. Dissertation, Faculty of Mechanical Engineering, Technion-Israel Institute of Technology, Haifa Peles YP, Yarin LP, Hetsroni G (2001) Steady and unsteady flow in heated capUlary. Int J Multiphase Flow 22 577-598... 

Losey, M. W., Isogai, S., Schmidt, M.A., Jensen, K. F., Microfabricated devices for multiphase catalytic process, in Proceedings of the 4th International Conference on Microreaction Technology, IMRET 4, 5-9 March 2000, pp. 416-424, AIChE Topical Conf. Proc., Atlanta, GA (2000). 

Groeneveld, D. C., and C. W. Snoek, 1986, A Comprehensive Examination of Heat Transfer Correlations Suitable for Reactor Safety Analysis, in Multiphase Science Technology 2, G. F. Hewett, J. M. Delhaye, and N. Zuber, Eds., Hemisphere, Washington, DC. (5)... 

The primary product from Fischer-Tropsch synthesis is a complex multiphase mixture of hydrocarbons, oxygenates, and water. The composition of this mixture is dependent on the Fischer-Tropsch technology and considerable variation in carbon number distribution, as well as the relative abundance of different compound classes is possible. The primary Fischer-Tropsch product has to be refined to produce final products, and in this respect, it is comparable to crude oil. The primary product from Fischer-Tropsch synthesis can therefore be seen as a synthetic crude oil (syncrude). There are nevertheless significant differences between crude oil and Fischer-Tropsch syncrude, thus requiring a different refining approach.1... 

The author s work in the area of CFD analysis of chemical reactors has been supported nearly continuously for the last 15 years by the U.S. National Science Foundation. The work on gas-solid multiphase flows and population balances was funded by the U.S. Department of Energy. The author would also like to acknowledge support from several companies, including Air Products and Chemicals, BASF, BASELL, BP Chemicals, Dow Chemical, DuPont Engineering, and Univation Technologies. Last, but not least, the author wishes to acknowledge his many collaborators over the years who are many in number to name them individually. 

New reactor technologies are currently under development, and these include meso- and micro-structured reactors or the use of membranes. Among meso-structured reactors, monolithic catalysts play a pre-eminent role in environmental applications, initially in the cleaning of automotive exhaust gases. Beside this gas-solid application, other meso-structures such as membranes [57, 58], corrugated plate or other arranged catalysts and, of course, monoliths can be used as multiphase reactors [59, 60]. These reactors also offer a real potential for process intensification, which has already been demonstrated in commercial applications such as the production of hydrogen peroxide. 

Multiphase copolymers, Ziegler-Natta catalysts for, 26 535, 537-540 Multiphase laminar flow patterning, in microfluidics, 26 961 Multiphase reactions, in microbial transformations, 16 412-414 Multi-phase reactors, 21 333-335 Multiphoton effects, in photochemical technology, 19 109... 

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