High feeding

In this case, 2 (Jp,i,ax X FiSo/V 2 This is a high feed rate such that qp  

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The 2eohte and the resin adsorbents show different adsorption isotherm characteristics, particularly at higher concentration (51). The resin adsorbent isotherm is slightly concave upward, whereas the 2eohte isotherm is linear, or even slightly concave downward. Resins, therefore, have an advantage in a UOP Sarex operation that involves high feed-soHds concentration. 

Pusher centrifuges require high feed concentrations to enable the formation of a sufficiently rigid cake to transmit the thmst of the piston. The diameters vary from 150 to 1400 mm, the stroke frequency from 20 to 100 strokes per minute, and the soHds handling capacities up to 40 metric tons per hour or more. 

Thermal decomposition of spent acids, eg, sulfuric acid, is required as an intermediate step at temperatures sufficientiy high to completely consume the organic contaminants by combustion temperatures above 1000°C are required. Concentrated acid can be made from the sulfur oxides. Spent acid is sprayed into a vertical combustion chamber, where the energy required to heat and vaporize the feed and support these endothermic reactions is suppHed by complete combustion of fuel oil plus added sulfur, if further acid production is desired. High feed rates of up to 30 t/d of uniform spent acid droplets are attained with a single rotary atomizer and decomposition rates of ca 400 t/d are possible (98). 

In general, soHds-retaining batch and batch automatic machines are limited to low feed concentrations to minimize the time required to unload the soHds. Continuous disk centrifuges can have higher feed concentration. The limit is the underflow concentration. Conveyor discharge centrifuges can handle high feed concentration and are limited only by the volume of soHds displacement, or torque capacity. 

Chlorine. Chlorine gas is used as a sanitizer mainly in large commercial pools requiring a high feed rate to maintain the desired residual. However, many pool service companies use chlorine for treatment of residential pools. Some state and local health codes specify chlorine gas as the... 

For high feed loads, the shape of the diffuse traihng profile and the location of the leading front can be predicted from local equihbrium theory (see Fixed Bed Transitions ). This is illustrated in Fig. 16-35 for Tp = 0.4. For the diffuse profile (a simple wave ), Eq. (16-131) gives ... 

Static electricity generation in machines due to bowl rotation or high feed velocity. 

Figure 17, Plot of concentration versus height in a continuous sedimentation device. Curve (1) - low feedrate Curve (2) - high feed rate.

Wrong kinetic assumption. Too high feed rate. 

Solvent usage is drastically reduced due to several factors. The feed can be flowed through the ChiraLig columns nearly continuously and high feed concentrations can be used as needed. Rapid loading occurs due to reasonable binding kinetics. The subsequent release (elution) step is accomplished in just a few bed volumes, with... 

As an anodic passivating agent, nitrite enhances the formation of magnetite film and produces reducing conditions. It is simple to detect and test, but the high feed level and reserve requirement limit this product to small LPHW and LP steam boiler heating systems. 

Nanofilters incorporate negative membrane charge for higher anion rejection. High feed salinities can passivate these charges and reduce anion retention. 

For patients intolerant of gastric feedings or in whom the risk of aspiration is high, feedings delivered with the tip of the tube past the pylorus into the duodenum or, preferably, the jejunum are preferred. 

Consequently, if one desires to minimize the possibility that this reaction will run away as a result of exceeding the capacity of the cooling network, it would be advisable to operate in a mode such that the feed rate is gradually diminished instead of abruptly terminated at a high feed flow rate level. 

An economic benefit can occur through the retrofitting of a catalytic reactor, designed to perform partial destruction of the hypochlorite, into a plant already equipped with a chemical treatment system. The savings in chemicals consumption can more than offset the capital investment associated with the catalytic reactor and purchase of the initial catalyst charge. At high feed concentrations, say above a few weight per cent, the payback time can in fact be less than six months. 

Itoh (1987) These results arc achieved at high feed/purging flow rate ratios. 

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