Flow homogenizer

J. Allovio, USP 2988438 (1961) CA 55, 25257 (1961) claims a free-flowing, homogeneous incendiary mixture of granular material uniformly dispersed in a polymeric matrix... 

A system in which the liquid and gas/ vapour phases are uniformly mixed. In pipe flow, "homogeneous" also implies no slip between the phases and complete vapour/ liquid equilibrium (see 9 3 1)... 

Let Lp be the length of the simple ideal plug-flow homogeneous reactor with no dispersion for the same value of CA/CAm, and tp be the required residence time in the plug-flow reactor i.e. in equation A Dl = 0,... 

Thus if the flow velocity in a completely flowing (homogeneous) system is higher than a certain value, the balance polyhedron contains a unique steady-state point that is globally stable, i.e. every solution for the kinetic equations (139) lying in Da tends to it at t - oo. Note that a critical value for the flow velocity at which this effect is obtained can depend on the choice of balance polyhedron (gas pressure). 

Webb, P.B., Kunene, T.E. and Cole-Hamilton, D.J. (2005) Continuous flow homogeneous hydroformylation of alkenes using supercritical fluids. Green Chem., 7, 373. 

Andersson, T., T. Pihtsalmi, K. Hartonen, T. Hyotylainem, and M.L. Riekkola. 2003. Effect of extraction vessel geometry and flow homogeneity on recoveries of polycyclic aromatic hydrocarbons in pressurised hot water extraction. Anal. Bioanal. Chem. 376 1081-1088. 

Applied shear must produce laminar flow (homogeneous sample, no mixing). In some measuring systems Newtonian samples such water sometimes appear to be dilatant at very high shear rates due to the additional energy requirements of increasing turbulence. 

Sellin MF, Webb PB, Cole-Hamilton DJ (2001) Continuous flow homogeneous catalysis hydroformulation of alkenes in supercritical fluid-ionic liquid biphasic mixtures. Chem Commun 8 781-782... 

There are many types of chemical reactors which operate under various conditions, such as batch, flow, homogeneous, heterogeneous, steady state, etc. Thus, one general mathematical description which would apply to all types of reactors would be extremely complex. The general approach for reactor design, therefore, is to develop the appropriate mathematical model which will describe the specific reaction system for that particular form of reactor under consideration. For example, if the reaction system is to be evaluated for steady-state... 

Figure 5 Schematic representation of the laboratory photoreactor. Keys (1) gas outlet, (2) flow homogenizer, (3) photocatalytic plate, (4) UV lamps, (5) gas inlet, (6) acrylic windows.

Example 3.3. Balances for Plug-Flow Homogeneous Reactors (PFR)... 

Methods for the determination of the frictional pressure drop usually start with simple models. For the most part, either homogeneous flow (homogeneous distribution of the phases s — 1) or heterogeneous flow (heterogeneous distribution of the phases, s > 1) are presumed. Less common are methods based upon specific flow patterns and are only applicable if this flow pattern is present. 

The spatial structure of the turbulent field is contained in the eigenvectors. We see that the eigenvectors are expanded as a Fourier series in the directions of flow homogeneity, x and y. The rate of convergence of the sequence of eigenvalues is a sensitive indicator of the presence and relative importance of coherent structures. EOF analysis provides not only an objective measure of the existence of dominant, spatially-extensive structure but, with minimal additional assumptions, allows us to deduce the 3-dimensional structure of the dominant eddies in their mature phase. 

Couette flow) Homogeneous if R/R > 0.95 High- fluids are difficult to clean... 

Continuous-Flow Homogeneous Catalysis using Supercritical Carbon Dioxide-Ionic Liquid Biphasic Systems... 

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