Oil neutralizer that removes free fatty acids (FFA) from oil, compulsory for cottonseed oil and castor oil treatment, offered as the TPN1 and TPN2 batch models. Cottonseed oil has higher FFA, which the neutralizer removes. Removing the acid as soon as possible stops a bad odour developing over time, which would otherwise call for a complete refinery plant, an expensive and capital intensive project. Oil heating is part of the neutralising process, by steam or by electric heaters, so two types are supplied: one works with a boiler, the other heats electrically and runs boiler-free. Castor oil treatment calls for a boiler. Depending on the oil to be processed, the neutralizer is equipped with a spraying system, open steam system, hot water injection system and agitation system. When ordering, state the capacity needed and whether a boiler is on site. The vessel is a teal vertical tank with a conical bottom on angled legs and a motor drive on the top cover; one variant carries a panel on its front. Models (capacity / net weight / volume in cubic meter): TPN1 500 liters / batch, 300 kg, 1.5 · TPN2 1000 liters / batch, 600 kg, 3.5