METHOD FOR REMOVING CARBONACEOUS DEPOSITS FROM SURFACES OF CATALYSTS AND PLANT COMPONENTS

WIPO Patent Application WO/2010/046244

A3

The invention relates to a method for removing carbonaceous deposits from surfaces of catalysts and plant components by treating the deposits with a superheated steam flow at least temporarily containing an oxygenated gas, wherein by monitoring the CO2 in the exhaust gas after condensing the steam at a temperature of at least 300 °C, (a) the carbonaceous deposits are treated with super-heated steam at a temperature of at least 300 °C until the CO2 content of the exhaust gas has exceeded a maximum, (b) then with further introduction of super-heated steam the introduction of oxygen begins, wherein the amount of introduced oxygen is adjusted so that the CO2-content in the exhaust further reduces until it has sunk to a value <1% by volume and then (c) an oxygenated gas is introduced onto the remaining amounts of carbonaceous deposits and the introduction of superheated steam stopped until the deposits are practically removed.

JP6534216	Regeneration method of catalyst for producing conjugated diolefin
WO/2005/082517	METHOD FOR THE REMOVAL OF CARBONACEOUS RESIDUES IN A REACTOR
JPS6033540	[Title of the Invention] A reproduction process of an activated carbon support palladium chloride catalyst

WINTER MANFRED (DE)
WEIGL HAGEN (DE)
KRAMER ANDREAS (DE)

PCT/EP2009/063141

July 01, 2010

October 09, 2009

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BASF SE (DE)
WINTER MANFRED (DE)
WEIGL HAGEN (DE)
KRAMER ANDREAS (DE)

B01J38/16; B01J21/20; B01J38/20

EP0071137A2	1983-02-09
EP1241154A2	2002-09-18
US4274942A	1981-06-23

BASF SE (67056 Ludwigshafen, DE)

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