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Catalytic biomass pyrolysis in an auger reactor

a biomass pyrolysis and auger reactor technology, applied in the direction of mechanical conveying coke ovens, biofuels, products, etc., can solve the problems of acidic and thermally unstable bio-oil, and achieve the effect of reducing the temperature required for pyrolysis and increasing the rate of pyrolysis

Inactive Publication Date: 2013-12-12
PHILLIPS 66 CO
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  • Application Information

AI Technical Summary

Benefits of technology

This disclosure is about a new process for making bio-oil from biomass using pyrolysis. The process involves using a thermal reactor with an auger and a catalyst to speed up the conversion of the biomass. The catalyst helps to transfer heat to the biomass and increase the rate of conversion. The reactor maintains an inert gas or a reactive gas such as hydrogen or steam inside it to influence the chemical reaction. The technical effect is a faster and more efficient way to make bio-oil from biomass.

Problems solved by technology

Bio-oil typically is thermally unstable, acidic, and not miscible with petroleum feedstocks.

Method used

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  • Catalytic biomass pyrolysis in an auger reactor
  • Catalytic biomass pyrolysis in an auger reactor

Examples

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example 1

[0035]Either micro-algal or lignin biomass was dried at 70° C. for 12 hours, and then pyrolyzed with and without zeolite catalyst in inert (He) atmosphere. Pyrolysis was conducted at 475° C. pyrolysis temperature, heating rate ˜10,000° C. / s and a 5:1 catalyst ratio (when used). Vapors were analyzed by gas chromatography / mass spectrometry (GC / MS). Char was measured by gravimetric difference. All yields are on a mass basis.

[0036]The data (see Tables 1 and 2) show a greater than 60% yield of condensable vapors from both micro-algal (Table 1) and lignin (Table 2) biomass in un-catalyzed pyrolysis and 50% or greater yield during catalyzed pyrolysis. Adding a zeolite catalyst improved yield of hydrocarbons in the vapor phase, while also increasing char yield.

TABLE IYield of pyrolysis products from dried, whole microalgae.Yield %,Yield %,Productno catalystzeolite catalystNoncondensable gas*617Char*1928Condensable vapors*7455Hydrocarbons in vapor**944*Yield based on total biomass**Yield bas...

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Abstract

The present invention relates generally to the thermal conversion of biomass. Processes are disclosed for converting biomass to condensable vapor intermediates such as pyrolysis oil by means of catalytic pyrolysis in a reactor comprising at least one auger, where the catalyst also comprises a heat carrier. The intermediates produced may be further processed for production of renewable hydrocarbon fuels.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is a non-provisional application which claims benefit under 35 USC §119(e) to U.S. Provisional Application Ser. No. 61 / 658,513 filed Jun. 12, 2012, entitled CATALYTIC BIOMASS PYROLYSIS IN AN AUGER REACTOR, which is incorporated herein in its entirety.STATEMENT OF FEDERALLY SPONSORED RESEARCH[0002]None.FIELD OF THE DISCLOSURE[0003]The present invention relates generally to pyrolytic conversion of biomass in the presence of a catalyst and a heat carrier in a reactor comprising at least one auger.BACKGROUND[0004]The Renewable Fuels Standards (RFS) enacted by the US Government mandate the increased use of renewable energy sources to reduce emissions of carbon based fuels and provide alternatives to petroleum based energy and feedstock.[0005]One of the alternatives being explored is the use of biomass. Biomass is any carbon containing material derived from living, or recently-living, organisms. The ability to convert biomass d...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C10G3/00
CPCC10G3/42C10B7/10C10B49/16C10B49/20C10B53/02C10B57/06C10G1/08Y02P20/145Y02P30/20Y02E50/10
Inventor DAUGAARD, DAREN E.JONES, SAMUEL T.PLATON, ALEXANDRUGONG, KENINGLOTERO, EDGAR
Owner PHILLIPS 66 CO
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