Process for detoxifying coal tars

Patent · 31 December 1982

OSTI ID:864728

Longwell, John P ^[1]; Peters, William A ^[2]

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1. Cambridge, MA
2. Arlington, MA

A process for treating liquid hydrocarbons to remove toxic, mutagenic and/or carcinogenic aromatic hydrocarbons comprises feeding the hydrocarbons into a reactor where vapors are thermally treated in contact with a catalyst consisting essentially of calcium oxide or a calcium oxide containing mineral. Thermally treating liquid hydrocarbons in contact with calcium oxide preferentially increases the cracking of aromatics thus producing a product having a reduced amount of aromatic compounds.

• Assignee: Massachusetts Institute of Technology (Cambridge, MA)
• Patent Number(s): US 4409094
• OSTI ID: 864728
• Country of Publication: United States
• Language: English

Related Subjects

/208/201/423/585/
amount
aromatic
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hydrocarbons
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liquid
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mineral
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oxide
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thermally
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treating
treating liquid
vapors