In order to understand the development status and research trend of key preparation technologies of metallocene poly-α-olefin (mPAO) base oil in the world

combined bibliometric method and patent analysis

with the help of visualization software VOSviewer

using web of science core database and incopat Patent database

papers and patents related to mPAO technical process by the end of 2020 were searched for analysis

a keyword co-occurrence map was drawn

and the planning and layout of related fields at home and abroad were sorted out to analyze current research hotspots and development trends. The results show that mPAO technical research field is relatively new

belonging to the frontier technology in the a draw keyword field

and is still in a period of rapid development; from the distribution of research institutions

there are great differences at home and abroad

foreign research is relatively mature

mainly concentrated in the United States and Japan; domestic research is scattered

and has not yet formed a core research institution. On this basis

it is predicted that the global demand for mPAO with high viscosity index and low pour point will further increase. The research and development of mPAO synthetic lubricating oil and its process will become one of the development directions of advanced lubricating base oil in the future.