Petroleo Brasileiro S.a. - Petrobras

Julio Amilcar Ramos Cabral

Andrea De Rezende Pinho

Mauro Silva

Wilson Kenzo Huziwara

Carlos Nagib Khalil

Fabio Leal Mendes

Luiz Carlos Casavechia

Luis Fernando Soares De Azevedo

Amilcar Pereira Da Silva Neto

Lúcia Cristina Ferreira Leite

Keiji Maeshiro

Antonio Wahib Bogossian Khalil

Daniel Santos De Albuquerque

Raul De Carvalho Silva

Luiz Fernando Leite

Lucia Cristina Ferreira Leite

The present invention relates to a method for the production of ethene, CO, and hydrogen in a reactor with a circulating fluidized bed with two independent sections, from feedstocks that contain hydrocarbons with at least 11 carbon atoms or from feedstocks with a high oxygen content, using a catalyst in particulate form. The method teaches that in one of the sections of the reactor, in the absence of oxygen, a catalyst containing a dehydrogenation metal promotes the cracking of the said feedstocks, facilitating the subsequent endothermic reactions. In the other section, the coke is burned with air and the heating of the catalyst is controlled, for the adjustment of the appropriate amount of energy that the heated catalyst will convey to the section in which the endothermic reactions take place. The total ethene yield of the process according to the present invention is approximately 20% by weight in relation to the feedstock.

Method for the production of ethene and synthesis gas in circulating fluidized bed

The present invention comprises a thermocatalytic cracking process for the production of diesel oil from a charge of vegetable origin made from seeds of oleaginous plants in refineries possessing at least two FCC reactors. At least one of such reactors processes heavy gas oil or residue under conventional conditions while at least one of such reactors processes the charge of vegetable origin made from seeds of oleaginous plants under conditions suitable, for production of diesel oil. Said process employs the same catalyst utilized in the fluid catalytic cracking process which, simultaneously, processes a conventional charge. The diesel, or biodiesel, oil produced by means of said process is of superior quality having a cetane number exceeding 40 given that the cracking reactions occur at low temperatures and the products obtained are less oxidized and consequently purer than products obtained by means of existing technology.

Catalytic cracking process for production of diesel from seeds of oleaginous plants

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.

Process for converting ethanol and hydrocarbons in a fluidized catalytic cracking unit

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Rio de Janeiro, Brazil

Julio Amilcar Ramos Cabral