Heavy oil modification and viscosity reduction rare earth catalyst and use method thereof

Abstract

The invention relates to the technical field of thickened oil viscosity reduction, and discloses a thickened oil modification and viscosity reduction catalyst and a use method thereof, and the catalyst comprises at least one of rare earth chloride, nitrate, chlorate, acetate, oxalate, sulfate, phosphate, carbonate, hydroxide, oxide, isocaprylate and naphthenate. The use method of the catalyst comprises the step of adding the catalyst, a hydrogen donor and water into a thickened oil sample for reaction. The catalyst can effectively reduce the viscosity of the thickened oil, has no catalyst toxicity and has small influence on the environment.

Description

technical field [0001] The invention relates to the technical field of viscosity reduction of heavy oil, in particular to a rare earth catalyst for heavy oil modification and viscosity reduction and a method for using the same. Background technique [0002] Heavy oil accounts for more than 70% of the world's remaining oil resources, and the development of heavy oil resources is essential to meet the growing demand for fossil fuels. However, the high viscosity and high density of heavy oil are the key factors hindering the development of conventional extraction technology. It is a feasible method to reduce the viscosity by breaking the complex macromolecular chains of heavy oil. Relevant heavy oil viscosity reduction recovery technologies mainly include physical viscosity reduction technology, chemical viscosity reduction technology, thin oil viscosity reduction technology and biological viscosity reduction technology. The common technical advantage of chemical viscosity red...

AI Technical Summary

Problems solved by technology

The advantage of this research is that the source of inorganic salt is wide, the cost is low, the use is simple, and no special equipment is needed. The disadvantage is that the above-mentioned inorganic salt is mostly heavy metal, which has a certain impact on the underground environment. In the thin oil, the thin oil enters the refinery for refining, which is likely to cause poisoning of the catalyst. It is usually necessary to carry out the demetallization process before the thin oil is processed, or to change the refining process, resulting in an increase in production costs.

The main function of rare earth metals and rare earth metal compounds in this invention is to inhibit coking, and they do not have catalytic functions

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