| abstract |
The present invention relates to an oligomer preparation method, and provides an oligomer preparation method and preparation apparatus, the preparation method comprising the steps of: supplying, to a reactor, a feed stream comprising monomers, so as to perform an oligomerization reaction; supplying a first effluent stream of the reactor to a first separation apparatus, and supplying a second effluent stream of the reactor to a second separation apparatus; supplying the bottom effluent stream of the second separation apparatus to a third separation apparatus; supplying, to a monomer dissolution apparatus, the top effluent stream comprising monomers, of the third separation apparatus, thereby dissolving same in a solvent to be supplied to the monomer dissolution apparatus; and supplying the effluent stream of the monomer dissolution apparatus to the reactor. |