id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
cet-12761		cet-12761		6	.pdf	application/pdf	3690	133	45	Structural changes of the distillation unit are more complex because they require higher capital investment and more installation time than structural changes of the HEN, which usually require the relocation of existing heat exchangers or addition of ones and the installation of stream splitters (Wang et al., 2021). Such integration is usually applied in heat exchanger networks and in the preheating train of processes.	cache/cet-12761.pdf	txt/cet-12761.txt