Process for recycling heterogeneous waste
AssigneeRineco Chemical Industries, Inc.
InventorJohn P. Whitney
Life of this patent
Estimating the term…
Abstract
A process is provided for recycling heterogeneous waste including the initial step of subjecting the heterogeneous waste to pyrolysis to produce a synthesis gas stream comprising at least carbon monoxide and hydrogen and a molten pyrolysis product stream having a variable composition comprising at least a mineral material and a metallic material. The molten pyrolysis product stream is converted to a plurality of commercial grade solid materials. Likewise, the synthesis gas stream is also converted into at least one commercial grade chemical.
Claims24
A process for recycling heterogeneous waste comprising the steps of:
- subjecting the heterogeneous waste to pyrolysis to produce a synthesis gas stream comprising at least carbon monoxide and hydrogen and to produce a molten pyrolysis product stream having a variable composition comprising at least a mineral material and a metallic material;
- converting said molten pyrolysis product stream to a plurality of commercial grade solid materials;
- and
- converting said synthesis gas stream into at least one commercial grade chemical.
A process for producing methanol from heterogeneous waste comprising the steps of:
- subjecting the heterogeneous waste to pyrolysis to produce a synthesis gas comprising hydrogen and carbon monoxide;
- sensing the ratio of hydrogen and carbon monoxide within said synthesis gas;
- adjusting the ratio of said hydrogen and carbon monoxide components of said synthesis gas to a ratio of approximately 1.95:1 to 2.0:1 molecules of hydrogen per molecule of carbon monoxide;
- and
- presenting said adjusted synthesis gas to a liquid phase methanol reactor for producing methanol.
A process for producing a synthesis gas suitable for the production of methanol or methanol and dimethyl ether, said process comprising the steps of:
- introducing oxygen and a heterogeneous material containing carbon to a gasifier wherein said gasifier generates therefrom a raw synthesis gas comprising carbon monoxide and hydrogen in the gasifier;
- measuring the ratio of hydrogen to carbon monoxide in said raw synthesis gas;
- separating said raw synthesis gas into a first stream and a second stream;
- feeding said first stream to a shift reactor to product a shifted gas stream comprising of carbon dioxide and hydrogen, and
- combining the shifted gas stream with the second stream forming a mixed synthesis gas stream having a desired ratio of hydrogen to carbon monoxide suitable for the production of methanol.
A process for recycling heterogeneous waste comprising the steps of:
- subjecting the heterogeneous waste to pyrolysis to produce a synthesis gas stream comprising carbon monoxide and hydrogen and a molten pyrolysis product stream comprising at least a mineral material and a metallic material;
- converting said molten pyrolysis product stream to a plurality of useful solid materials by:
- allowing said molten pyrolysis product stream to gravitationally segregate into metallic portion and a mineral portion;
- quenching said metallic portion of said molten pyrolysis product stream to form a ferric alloy, said ferric alloy being suitable for use in the production of steel;
- quenching said mineral portion of said molten pyrolysis product stream to form a vitreous material, said vitreous material being suitable for use as an abrasive;
- and
- converting said gaseous pyrolysis product stream into at least one useful chemical by:
- sensing the ratio of hydrogen to carbon monoxide of said synthesis gas stream;
- in response to said sensed ratio of hydrogen to carbon monoxide of said synthesis gas stream, separating said synthesis gas stream into a first stream and a second stream;
- introducing said first stream into a shift reactor, said shift reactor increasing the ratio of hydrogen to carbon monoxide of said first stream to produce a shifted gas stream;
- mixing said shifted gas stream with said second stream to produce a mixed synthesis gas stream, said mixed synthesis gas stream having a desired ratio of hydrogen to carbon monoxide;
- and
- converting said mixed synthesis gas to at least one commercial grade chemical.
Dependencies are inferred from the claim text.