| The crude oil with high acid number, has bring a series of disadvantageous factor to the oil refining enterprise , such as product quality, system balance and equipmentses corrosion in etc. The present method of deacidification take certain effect to the high acid number crude oil, but each of it has some weakness.Therefore, researching on the method of deacidification of the high acid number crude oil, to solve the refining business's problem, and increase the synthesizes exploitation of energy, it has the important and realistic meaning.The Deacidification method of alkali washing and electronic field refining, is used all over the world, the craft is traditional and mature, with low equipments investment and simple process. The naphthenic acid refining from the discarded alkali , is a important material . But this method has to use the strong acid and alkali, that can't be regenerated, the corrosion of equipments, and emulsification is serious , with high operating expenses. Aim at these , we adopted such improvement as NaOH : RCOOH =1, to reduce the consumption of NaOH, adding the mixed extractant to the alkali solvent, to cut down the emulsification; using the special phase separator to improve the Deacidification and imitate practical condition.The main factors affecting the Deacidification were discussed such as the temperature, time of the reaction and separation, the ratio of oil to solvent. The experiment effect is very good.This text has discussed the industry application of the crude oil alkali Deacidification method .We put forward that desalting combinate with the Deacidification to operate, it is a new idea . |
