CATALYST MANUFACTURE

• Main Authors: CASCI JOHN, LEONELLO, ANTONINI ALEJANDRO, MARTIN
• Format: Patent
• Language: English; Russian
• Published: 30.04.2010
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; METALLURGY; MINERAL WAXES; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR RELEVANT APPARATUS; TRANSPORTING

A method is described for lowering the nitrate content in a cobalt catalyst precursor formed by impregnating a catalyst support with cobalt nitrate, comprising calcining the impregnated support in air to effect partial denitrification and subsequently heating the calcined impregnated support to a temperature below 250°C in the presence of a gas mixture comprising 0.1-10% hydrogen by volume in an inert gas. Описан способ снижения содержания нитрата в прекурсоре кобальтового катализатора, приготовленном путем пропитки носителя катализатора нитратом кобальта, включающий обжиг импрегнированного носителя в воздушной среде для достижения частичной денитрификации и последующее нагревание прокаленного импрегнированного носителя до температуры ниже 250°С в присутствии газовой смеси, содержащей 0,1-10% водорода по объему в инертном газе.