Reactions during cooling

Geologists often must deal with chemical reactions during cooling. The quantitative aspects for a simple case of reaction kinetics during cooling, and the qualitative aspects for more complicated reactions during cooling, were presented in Chapter 1. In this section, the quantitative aspects of reversible reactions are presented. A simple first-order reversible reaction is used as an example to de-... 

The similarity theory and an exact mathematical theory of the course of the reversible reaction during cooling of the explosion products are set forth. A universal relationship between the ratio of the yield to the equilibrium... 

Reactions during cooling. The liquid crystallizes, giving mainly aluminate and ferrite. Polymorphic transitions of the alite and belite occur. 

The exothermic reactions for decomposition of carbon monoxide, (Reactions R7 and R8 in Table 5.2) means that for a given gas composition and pressure, there is a temperature below which there is a thermodynamic potential for carbon formation. Likewise for the endothermic decomposition of methane, (Reaction R6 in Table 5.2), there is a temperature above which there is a thermodynamic potential for carbon formation. These carbon limits assume that there is no reaction during cooling or heating the gas. This is the situation when no catalyst is present such as in heat exchangers, boilers and convective reformers. Carbon formation may lead to fouling of the equipment or to metal dusting corrosion [211],... 

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