This paper reviews theoretical considerations and empirical evidence on the comprehension of counterfactuals. The author sheds light on the issue of fake past and dual meaning. The theories of counterfactuals comprehension are assessed in light of empirical findings. The author supports the view that people hold in mind two meanings of counterfactuals. Based on this account, it is highlighted to differentiate three types of conditionals: suppositional, factual and counterfactual.

Measurements of the absorption rate of carbon dioxide into aqueous solutions of N-methyldiethanoloamine (MDEA) and 2-ethylaminoethanol (EAE) have been carried out. On this basis a mathematical model of the performance of an absorption column operated with aqueous solution of a blend of the above amines at elevated temperatures and pressures have been proposed. The results of simulations obtained by means of this model are described. The work is a part of a wider program, aimed at the development of a new process.