Selective temperature quench and electrostatic recovery of bio-oil fractions

US8992736B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8992736-B2
Application numberUS-201113114846-A
CountryUS
Kind codeB2
Filing dateMay 24, 2011
Priority dateJun 24, 2010
Publication dateMar 31, 2015
Grant dateMar 31, 2015

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A process for quenching, separating and collecting targeted components of a hot pyrolysis product stream from the pyrolysis of biomass is provided. The process utilizes sequential steps of rapid quenching and electrostatic precipitation comprising injecting a coolant comprising at least one of nitrogen, a noble gas and mixtures thereof into a hot pyrolysis vapor to selectively condense a first fraction of components from the hot pyrolysis vapor at a first predetermined temperature which is then collected by electrostatic precipitation in a first electrostatic precipitator at about the first predetermined temperature, where a wall temperature of the first electrostatic precipitator is maintained slightly higher than the first predetermined temperature. The sequential steps of coolant injection and collection are repeated at progressively cooler temperatures in order to selectively collect one or more fractions of the hot mixture.

First claim

Opening claim text (preview).

What is claimed is: 1. A method of fractioning hot pyrolysis vapor from biomass pyrolysis, said method comprising the following sequential steps: a) injecting a coolant comprising at least one of nitrogen, a noble gas and mixtures thereof into a hot pyrolysis vapor to selectively condense a first fraction of components from said hot pyrolysis vapor at a first predetermined temperature; b) collecting said first fraction by electrostatic precipitation in a first electrostatic prec…

Assignees

Inventors

Classifications

  • Operations & Transport · mapped topic

  • Operations & Transport · mapped topic

  • Chemistry & Metallurgy · mapped topic

  • C10C5/00Primary

    Chemistry & Metallurgy · mapped topic

  • Operations & Transport · mapped topic

Patent family

Related publications grouped by family.

External sources

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US8992736B2 cover?
A process for quenching, separating and collecting targeted components of a hot pyrolysis product stream from the pyrolysis of biomass is provided. The process utilizes sequential steps of rapid quenching and electrostatic precipitation comprising injecting a coolant comprising at least one of nitrogen, a noble gas and mixtures thereof into a hot pyrolysis vapor to selectively condense a first …
Who is the assignee on this patent?
Daugaard Daren E, Jones Samuel T, Dalluge Dustin L, and 3 more
What technology area does this patent fall under?
Primary CPC classification C10C5/00. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Mar 31 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).