Coupling Solvent Extraction Units to Cyclic Adsorption Units

Table 4

Amounts of energy involved in the regeneration of the extract (in kJ per litre extract).

Distillation		Adsorption
Step	Energy	Step	Energy
Heating to boiling point	63	Adsorption (exothermal)	0
Solvent evaporation	948	Heating 1 bed volumes of methanol to 100°C	22
		Desorption (endothermal) by elution of hot methanol	<1
		Heating to boiling point, evaporation of solvent of eluting stream	151
Total heat duty	1011		174