Cryogenic homogenization and sampling of heterogeneous multi-phase feedstock

Patent · 01 January 2002

OSTI ID:874487

Doyle, Glenn Michael ^[1]; Ideker, Virgene Linda ^[2]; Siegwarth, James David ^[3]

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1. Lakewood, CO
2. Arvada, CO
3. Boulder, CO

An apparatus and process for producing a homogeneous analytical sample from a heterogenous feedstock by: providing the mixed feedstock, reducing the temperature of the feedstock to a temperature below a critical temperature, reducing the size of the feedstock components, blending the reduced size feedstock to form a homogeneous mixture; and obtaining a representative sample of the homogeneous mixture. The size reduction and blending steps are performed at temperatures below the critical temperature in order to retain organic compounds in the form of solvents, oils, or liquids that may be adsorbed onto or absorbed into the solid components of the mixture, while also improving the efficiency of the size reduction. Preferably, the critical temperature is less than 77 K (-196.degree. C.). Further, with the process of this invention the representative sample may be maintained below the critical temperature until being analyzed.

• Research Organization: KAISER HILL LLC
• DOE Contract Number: AC34-95RF00825
• Assignee: The United States of America as represented by the Department of Energy (Washington, DC)
• Patent Number(s): US 6399393
• Application Number: 09/400,822
• OSTI ID: 874487
• Country of Publication: United States
• Language: English

Related Subjects

-196degree
/436/62/588/
77
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below
blending
components
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cryogenic
efficiency
feedstock
form
heterogeneous
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homogeneous
homogenization
improving
liquids
maintained
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multi-phase
obtaining
oils
organic
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providing
reduced
reducing
reduction
representative
retain
sample
sampling
size
solid
solvents
steps
temperature
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