Inventor

DUFRESNE PIERRE

FR58 patents

⚠️ This page may combine multiple inventors who share the name “DUFRESNE PIERRE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DUFRESNE PIERRE

INST FRANCAIS DU PETROLE

Novel hydrocracking or cracking catalyst for hydrocarbon charges

Method of hydroisomerizing paraffins emanating from the Fischer-Tropsch process using catalysts based on H-Y zeolite

Process for producing alkylbenzenes using a catalyst based on a dealuminized y zeolite and a catalyst based on a dealuminized mordenite

Process for eliminating mercury and possibly arsenic in hydrocarbons

Zeolite of omega structure catalysts

Mordenite-containing catalyst, its preparation and use for isomerizing cuts of high normal paraffin content

Mordenite-containing catalyst, its preparation and use for isomerizing cuts of high normal paraffin content

Catalytic cracking process

Catalyst for oil hydrorefining or mild hydrocracking of heavy oil charges to produce middle distillates

Catalyst for isomerizing cuts of high normal paraffins content

Process for dismutation and transalkylation of aromatic hydrocarbons in the presence of a zeolite catalyst

Dewaxing process employing a catalyst with a highly dealuminated mordenite base

Method of hydrocracking paraffins emanating from the Fischer-Tropsch process using catalysts based on H-Y zeolite

Hydrocracking catalyst and process for manufacturing the same

Process for the isomerization of external olefins to internal olefins concomitantly with diolefin hydrogenation

Decationized, dealuminated and stabilized L zeolite and use thereof

Catalyst and its use for a catalytic dewaxing process

Catalytic dewaxing process

Process for treating a catalyst or an adsorbent in a fluidized bed

EURECAT EUROP RETRAIT CATALYS

Off-site pretreatment of a hydrocarbon treatment catalyst

Process for presulfurizing hydrotreatment catalysts

Offsite regeneration process for a catalyst containing at least one precious metal

Process for incorporating sulfur into the pores of a hydrocarbon treatment catalyst

Precarbonisation of a hydrotreatment catalyst

Heat treatment of solid catalyst or adsorbent particles in the presence of fluid in a vibrating helical coil

Process for the presulphurization of hydrocarbon treatment catalysts

Ex-situ presulfuration in the presence of hydrocarbon molecule

Heat treatment of solid catalyst or adsorbent particles in the presence of fluid in a vibrating helical coil

Process of presulfurizing and controlling the activity of catalyst for treating hydrocarbons

Process for off-site preconditioning of a hydrocarbon processing catalyst

Process for starting a hydrocarbon conversion by the prior treatment of the catalyst with a sulphur agent and then diluted hydrogen

Catalyst presulphuration process using two different presulphuration agents

EURECAT SA

Process for the start-up of hydrotreatment or hydroconversion units

Off-site treatment for hydrogenation catalysts

Passivation of sulphur hydroconversion catalyst

Process for the regeneration of catalysts for the treatment of hydrocarbons

Method for preparing supported metal catalysts for hydrogenating unsaturated hydrocarbons

Oxidizing heat treatment passivation of sulphide hydrotreatment catalyst

Method for compositional sorting of catalyst or adsorbent in mixtures of catalysts and/or adsorbents

Process for limiting self heating of activated catalysts

Process for the start-up of hydrotreatment or hydroconversion units

DUFRESNE PIERRE

Process for passivation by a nitrogen-containing compound of a zeolitic catalyst, in particular a hydrocracking catalyst

Process for sulfurization or presulfurization of solid particles of a catalyst or an adsorbent

Colour sorting of catalyst or adsorbent particles

CATALYSE SOC PROD FRANCAIS

Hydrocracking catalyst for the production of middle distillates

PHILIPS CORP

Light generator for introducing light into optical fibers

AKZO NOBEL NV

Process for sulfiding an additive-containing catalyst

CENTRE NAT RECH SCIENT

Omega type zeolite having high thermal stability, its process of preparation and its utilization

GALLIOU PAULINE

Process for the regeneration of catalysts for the treatment of hydrocarbons

KERLEAU PHILIPPE

Process for the off site regeneration of solid catalysts