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Processes and systems for characterizing and blending refinery feedstocks
US9103813B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9103813-B2 |
| Application number | US-201113331093-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 20, 2011 |
| Priority date | Dec 28, 2010 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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Abstract
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Refinery feedstocks can be characterized based on any of: dissociation of acids in the crude, breakup of naphthenic acid molecular associations, and/or dissociation of sulfur compounds in the feedstocks. The characterization is performed as a function of temperature via any of electrical resistivity measurement, vibrational spectroscopic analysis, voltammetry, electrochemical impedance spectroscopy (EIS) and combinations thereof. The method can be practiced in any of refinery, terminal, and laboratories. It can be used in conjunction with models and hardware to optimize the usage of refinery feedstocks in the blending and valuation of the feedstocks. In one embodiment, the characterization of refinery feedstocks is via the use of EIS.
First claim
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What is claimed is: 1. A method for evaluating the corrosivity of a crude oil, comprising: withdrawing a representative sample of a crude oil feedstock to a refinery; performing impedance measurements on the crude oil sample as a function of temperature to obtain a first electrochemical impedance spectroscopy (EIS) data, wherein the first EIS data include data at 10 kHz frequency; deriving at least one of a resistance reading and a dielectric constant reading for the first EIS…
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Physics · mapped topic
- G01N33/2823Primary
Physics · mapped topic
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- What does patent US9103813B2 cover?
- Refinery feedstocks can be characterized based on any of: dissociation of acids in the crude, breakup of naphthenic acid molecular associations, and/or dissociation of sulfur compounds in the feedstocks. The characterization is performed as a function of temperature via any of electrical resistivity measurement, vibrational spectroscopic analysis, voltammetry, electrochemical impedance spectros…
- Who is the assignee on this patent?
- Kusinski Grzegorz Jan, Devine Thomas M, Chevron Usa Inc
- What technology area does this patent fall under?
- Primary CPC classification G01N33/2823. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Aug 11 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).