Petroleo Brasileiro S.a. - Petrobras

Marcus Vinicius Eiffle Duarte

Rafael Menegassi De Almeida

Jefferson Roberto Gomes

Wladmir Ferraz De Souza

Carlos René Klotz Rabello

Lilian Ernst

Rogerio Oddone

Guilherme Luis Monteiro De Souza

Xiaondong Hu

Carmen Lucia Tavares Da Silva

Joyce Leslie, Legal Representative

Giane Ribeiro Stuart

The present invention describes a process for the simultaneous removal of arsenic and sulphur compounds from hydrocarbon streams of fossil origin, wherein hydrocarbon streams of fossil origin resulting from the retorting process of schist are purified by direct contact with hydrated iron oxide, such as goethite (&#x3b1;-FeOOH) in its raw natural form (limonite ore particles).

Process for simultaneous removal of arsenic and sulphur from hydrocarbon streams

The present invention relates to a process for removing organic silicon compounds from hydrocarbon streams by contact with an adsorbent and hydrogen. The adsorbent is composed of lamellar double hydroxides and group VI-B or group VIII hydrogenating metal. More specifically, the process of the present invention involves a stage of activation for formation of the lamellar double hydroxide, and maintaining the phase of lamellar double hydroxide by adding water.

Process for removing silicon compounds from hydrocarbon streams

A process for the selective hydrodesulfurization of a naphtha containing olefins and organosulfur compounds is disclosed, which minimizes the hydrogenation of the olefins and results in a product with a low sulfur content. The process involves a two-stage hydrodesulfurization with HS removed from the first stage effluent. A flow of hydrogen and at least one added non-reactive compound is fed into the first stage, wherein the Hmolar fraction ranges from 0.2 to 1.0, and with HS at the reactor intake limited to a maximum of 0.1% by volume. The second stage involves a feedstream of hydrogen and at least one added non-reactive compound, wherein the Hmolar fraction ranges from 0.2 to 0.7 and with HS at the reactor intake limited to a maximum of 0.05% by volume.

Process for selective hydrodesulfurization of naphtha

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Rio de Janeiro, Brazil

Marcus Vinicius Eiffle Duarte