Novel method for regenerating oil liquid purifying resin

Abstract

The invention relates to the technical field of resin regeneration and recycling, and provides a novel method for regenerating and recycling adsorbent resin for purifying an oil liquid. The method comprises the following steps: in the process of desorbing and regenerating the oil liquid purifying resin, first, adding a certain amount of saturated AlCl3 liquor into the used oil liquid purifying resin; meanwhile, placing a mixture of the AlCl3 liquor and the oil liquid purifying resin to a microwave heating device to heat, desorb and regenerate; after microwave heating, filtering the AlCl3 liquor; drying particles of the oil liquid purifying resin, and stripping salt on the surface of the resin by air to obtain the regenerated resin. The novel method provided by the invention has the beneficial effects that the desorption rate in the regenerating process is great, the time consumed is less, the energy consumption is low, the production cost is low, the thermal injury of the regenerated resin is less, the desorption is relatively thorough and the regenerating and using performance is better.

Description

technical field [0001] The invention relates to the technical field of resin regeneration and utilization, in particular to a new method for regeneration and recycling of an adsorption resin required for oil purification. Background technique [0002] Using adsorption resin to purify contaminated oil is a low-cost and ideal oil purification method, and has a good application prospect in the field of waste oil treatment. However, since the adsorption resin is expensive and difficult to degrade naturally, if it cannot be recycled after use, it will directly affect the economy and environmental friendliness of its production process, and desorption and regeneration of the used resin is an effective way to solve the above problems . Therefore, finding an efficient desorption method for oil purification resin is a key technical problem that must be solved for the recycling of oil purification resin. [0003] At present, the known methods for regenerating oil purification resin ...

AI Technical Summary

Problems solved by technology

[0003] At present, the known methods for regenerating oil purification resin mainly include thermal desorption regeneration method and vacuum desorption regeneration method. Due to the limitations of the principle, there are still many defects and deficiencies in the production and application process

Although the thermal desorption regeneration method is simple to operate, it generally has problems such as slow desorption rate, high production energy consumption, and serious thermal damage to the internal structure of the resin; although the vacuum desorption regeneration method effectively solves the problem of thermal desorption regeneration technology There are problems such as high production energy consumption and serious thermal damage to the resin structure, but this method needs to invest in expensive vacuum equipment, and still cannot significantly increase the desorption rate

In addition, since the above two regeneration methods cannot carry out deep regeneration treatment on the oil purification resin, the performance of the recycled resin is reduced and the service life is shortened.