US 2025/0155424 A1 · METHODS FOR DETERMINING TOTAL ARSENIC, DISSOLVED ARSENIC, PARTICULATE ARSENIC, VOLATILE ARSENIC AND IONIC ARSENIC IN PETROLEUM, PETROLEUM DERIVATIVES AND SHALE OIL AND SET OF WASHING BOTTLES FOR USE IN THE METHODS

Methods for determining total arsenic, dissolved arsenic, particulate arsenic, volatile arsenic and ionic arsenic in petroleum, petroleum derivatives and shale oil and set of washing bottles for use in the methods

AssigneesPetroleo Brasileiro S.A. - Petrobras, Centro De Tecnologia Mineral - Cetem

InventorsRainerio ESCALFONI JUNIOR, Isabela Caldeira Leite LEOCADIO, Marcus Vinicius Eiffle DUARTE, Manuel Castro CARNEIRO, Maria Inês Couto MONTEIRO, Fernanda Veronesi Marinho PONTES, Lívia Gonçalves Leida SOARES, Raísa Rodrigues GIOIA, Arnaldo Alcover NETO

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Abstract

This disclosure proposes an embodiment of a set of coupled washing bottles to be used in the method of separation and quantification of the arsenic fractions AsP, AsD and AsV of the samples, as well as an embodiment of a method for the determination of total arsenic (AsT), dissolved arsenic (AsD), particulate arsenic (AsP), volatile arsenic (AsV) and ionic arsenic (AsI) in petroleum, shale oil and related samples.

Claims12

Dependent claims

A method for determining total arsenic (AsT), dissolved arsenic (AsD), particulate arsenic (AsP), volatile arsenic (AsV) and ionic arsenic (AsI) in petroleum, petroleum derivatives and shale oil, the method comprising:

quantifying AsT;
determining the mass fraction of arsenic species;
determining the mass fraction of AsP;
determining the mass fraction of AsD and AsI;
and
determining the mass fraction of AsV.

3 more elements

Dependencies are inferred from the claim text.