Process for converting ethanol and hydrocarbons in a fluidized catalytic cracking unit
AssigneePetroleo Brasileiro S.A. - Petrobras
InventorsAndrea de Rezende PINHO, Julio Amilcar Ramos Cabral, Luiz Fernando Leite
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Abstract
A method is described for co-processing of ethanol and hydrocarbons from petroleum refining, which are introduced separately in two reaction zones of a reactor of a fluidized catalytic cracking unit. The process combines conversion of ethanol into ethene and conversion of hydrocarbons into other lighter hydrocarbon fractions, to produce ethene in quantities of 15 to 90 wt % in the fuel gas fraction obtained during the process.
Claims10
PROCESS FOR CONVERTING A FEEDSTOCK OF ETHANOL AND HYDROCARBONS IN A FLUIDIZED CATALYTIC CRACKING UNIT, characterized in that it includes the following steps:
- a) dehydration of ethanol introduced in a first reaction zone of an FCC reactor, in contact with a zeolite catalyst;
- b} cracking of the hydrocarbons, introduced in a second reaction zone of the FCC reactor, in contact with a catalyst which leaves the first reaction zone;
- c) separation of hydrocarbon products and a deactivated catalyst, at the outlet of the reactor;
- d) rectification of the deactivated catalyst to remove hydrocarbon products, which are then mixed with the hydrocarbon products from step c), to obtain streams of hydrocarbon products for the process.
Dependencies are inferred from the claim text.