Production of activated carbon exhibiting an elevated catalytic activity
AssigneeHelsa-Automotive GmbH & Co. KG
InventorsSteffan Trnetschek, Gabriele Busse, Eberhard Sachmann
Life of this patent
Estimating the term…
Abstract
Proposed is a process for producing active carbon with increased catalytic activity, wherein the process starts from an active carbon substrate which in particular is an active carbon substrate based on a carbon-bearing cokable raw material, and includes heating of the active carbon substrate to the activation temperature by contacting it with a reaction gas mixture and cooling of the active carbon substrate which is activated in that way.
Claims9
A process for producing active carbon with increased catalytic activity, wherein the process starts from an active carbon substrate, in particular an active carbon substrate on the basis of carbon-bearing cokable raw materials, and includes the following process steps:
- heating the active carbon substrate to the activation temperature by contacting it with a reaction gas mixture which contains NH3 and CO2 and/or H2O, wherein activation is effected at the same time, and
- cooling the active carbon substrate which is activated in that way in a reaction gas mixture atmosphere.
A process for producing active carbon with increased catalytic activity, wherein the process starts from an active carbon substrate, in particular an active carbon substrate on the basis of carbon-bearing cokable raw materials, and includes the following process steps:
- impregnating the active carbon substrate with ammonia water,
- heating the active carbon substrate to the activation temperature by contacting it with CO2 and/or H2O, wherein activation is effected at the same time, and
- cooling the active carbon substrate which is activated in that way in a reaction atmosphere.
A process as set forth in one of the preceding claims characterized in that activation is effected over a period of between 30 and 120 minutes.
A process as set forth in one of the preceding claims characterized in that the active carbon substrate is an active carbon produced from coconut shells, pit coal, fruit stone shell, brown coal coke and polymers.
A process as set forth in one of the preceding claims characterized in that the operation of cooling the activated active carbon substrate is effected to a temperature <200° C.
Dependencies are inferred from the claim text.