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US 12,275,896 B2Granted
Catalytic hydrotreating of feedstocks
AssigneeNeste Oyj
InventorsKaisa Lamminpää, Marina Lindblad, Maaria Seläntaus, Kaija Isokoski, Marja Tiitta, Emma Sairanen, Ville Paasikallio
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Abstract
A process for hydrotreating recycled or renewable feedstocks with a catalytic microparticle slurry, and a process for manufacturing the catalytic microparticle slurry, are disclosed.
Claims18
A hydrotreatment process comprising:
- a. providing in a reactor a liquid feedstock;
- and
- b. hydrotreating the liquid feedstock in liquid phase and at a temperature selected from a range 280-380° C. in a presence of catalytic MoS2 microparticle slurry, to provide a liquid reaction product with decreased heteroatom content;
- wherein:
- at least 90 wt % of catalytic MoS2 microparticles in the MoS2 microparticle slurry have a size below 7 μm, wherein the size of a microparticle is expressed as an average of the longest dimension and the shortest dimension of the microparticle,
- at least 90 wt % of the microparticles have an aspect ratio of 0.40-1.0, and
- the MoS2 microparticle slurry is used in an amount of 10 ppm-500 ppm, based on a total weight amount of a reaction mixture in the reactor.
4 more elements
A process for manufacturing catalytic molybdenum sulphide microparticles comprising:
- a. providing in a hydrocarbon solvent a Mo precursor and a H2S source to provide a reaction mixture;
- and
- b. hydrogenating, under stirring, the reaction mixture at a temperature of at least 180° C. to form a hydrogenated reaction mixture, such that a combination of temperature and pressure is sufficient for evaporating water in the reaction mixture,
- wherein at least 90 wt % of the catalytic molybdenum sulphide microparticles manufactured from the process have a size below 7 μm, wherein the size of a microparticle is expressed as an average of the longest dimension and the shortest dimension of the microparticle, and
- wherein the hydrogenated reaction mixture contains the Mo precursor in an amount ranging from 2.4-6.2 wt % based on a total amount of the hydrogenated reaction mixture.
2 more elements
Dependencies are inferred from the claim text.