Neste Oyj

Turun Yliopisto

Aalto University Foundation Sr

Emma Sairanen

Pekka Aalto

Marina Lindblad

Marja Tiitta

Jarmo Kela

John Jamieson

Ville Paasikallio

Mika Kettunen

Kaisa Lamminpää

Maaria Seläntaus

Antti Ojala

Mika Lastusaari

Herbert Sixta

Antti Kurkijärvi

Heikki Aaltonen

Kaija Isokoski

Andrea Perez Nebreda

Jukka Keyriläinen

Andrea Pérez Nebreda

Sami Vuori

Isabella Pönkkä

Wenwen Fang

Marjut Aho

Perttu Uotila

Maaria Selantaus

Antti Kurkijarvi

A process for hydrotreating recycled or renewable feedstocks with a catalytic microparticle slurry, and a process for manufacturing the catalytic microparticle slurry, are disclosed.

Catalytic hydrotreating of feedstocks

The present disclosure relates to methods for processing liquefied waste polymers (LWP) containing diolefins. The LWP feed is supplied to steam stripper A to provide a distillate containing diolefins and naphtha, and a distillate bottom. The distillate is subjected to hydrotreatment B to produce a diolefin depleted distillate which is separated by distillation C to give rise to one or more fractions comprising at least a naphtha fraction, an optional middle fraction and a bottom fraction. Hydroprocessing D of the naphtha fraction gives rise to hydrogenated naphtha which is suitable as a feed for a steam cracker E. Since the distillation bottom, bottom fraction and the middle distillate are predominantly free from diolefins, they can be mixed with crude oil and processed further in oil refinery.

Method for processing liquefied waste polymers

Growing community of inventors

Porvoo, Finland

Emma Sairanen