The book explores industrial applications of green solvents in industrially important areas such as oil extraction, sensors and biosensors, CO2 capture, etc. Keywords: Green Chemistry, Green Solvents, Ionic Liquids, Supercritical Carbon Dioxide, Glycerol, Biosensors, CO2 Capture, Lignocellulosic Biomass Utilization, Bio-based Chemicals, Electrochemical Devices, Chromatographic Purification of Pharmaceuticals, Bio-lubricant Additives, Green Electrolytes for Aluminum Production, Green Electrolytes for Aluminum-Alloy Production, Green Solvents for Oil Extraction.