Virginity, loss

This shows that this modified heat of gasification includes all effects that augment or reduce the mass loss rate. Recall that the term in the [ ] becomes zero if the solid is thermally thick and the virgin solid equilibrates to the steady state. Equating Equations (9.107) and (9.108) gives an equation for the flame temperature ... 

Unavoidable loss of gas is compensated via a feed valve for supplying virgin nitrogen into the circulation pipe. The exhaust gas of the process has to be bypassed for purification. After the separation of dust by a filter, the gas is heated to 400 °C for the catalytic combustion of the side products. The gas is then cooled down, and the excess oxygen is catalytically converted to water by using hydrogen. For economic reasons, the gas flow will recover the heat via a heat exchanger and then be cooled down by a gas cooler. 

Profile material has been successfully subjected to repeated extrusion to investigate the effect of loss of properties and durability when PVC waste is reprocessed. Colour deterioration was the main issue (indicating a need for a virgin cap material to retain colour, if necessary) (211). Fence posts based on a core of recycled PVC, enclosed in a virgin cap skin, have been developed. At present, this depends on post industrial waste, such as off-cuts and off specification profile materials as the source (99). Arecycling project, for vinyl sidings in the USA, has also been conducted (397) (www.vinylinfo.org). 

Figure 2C). Likewise, Figure 7C shows the spectrum of the partially etched tantalum surface whose composition appears similar to the virgin surface (Figure 7A). There is evidence of some fluorine in the surface resulting from the probable ethant species. Figure 10 is a micrograph of the resist features at the conclusion of etching. It shows no surface irregularities, and the features are little changed from their unprocessed state. Under these conditions, the substrate can be completely etched with minimal loss of PBS.

There are some advantages of the application of catalysts, on the other hand it may cause difficulties (feeding of catalysts into the reactor, activity loss, etc.). Usually batch experiments were carried out on laboratory scale (1-5 g) using one or two types of polymers, which were virgin and not waste polymers, therefore the confrontation with problems of greater amounts of catalysts is probable in the immediate future. 

If proper precautions are not taken and the olives are collected in large batches and held in piles several meters high, the fruit may be damaged. The enzymes released will cause hydrolytic and oxidative transformations resulting in off-flavors that affect the quality of the oil. Even with low acidity, such oils will have an unpleasant taste not acceptable for virgin oil and will have to be refined. Because of the difference in price between virgin and refined oils, economic losses to the farmer can be high. 

Low pressure drops (though a certain head loss increase, compared with the virgin filters, has to be envisaged owing to the presence of the catalyst). 

Virgin olive oil shows a remarkable resistance to oxidation and polymerisation during domestic deep-frying of potatoes or in other uses at frying temperatures. Compared to vegetable oils such as sunflower, cottonseed oil, com and soybean oil, olive oil shows a significantly lower rate of alteration as demonstrated by measurements of viscosity, total polar compounds and loss of... 

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