System and method for improving chemical yield from gasification via hydrogen supplementation

Patent metadata

Field	Value
Publication number	US-2026015231-A1
Application number	US-202318995222-A
Country	US
Kind code	A1
Filing date	Jul 25, 2023
Priority date	Aug 2, 2022
Publication date	Jan 15, 2026
Grant date	—

Abstract

In one aspect, the disclosure relates to a method for supplementing syngas to produce a precursor composition for synthesis of at least one industrially useful chemical, the method comprising contacting the syngas with an external source of hydrogen. In an aspect, industrially useful chemical comprises methanol and the external source of hydrogen comprises hydrogen produced by steam methane reforming (SMR), hydrogen produced by steam injected onto molten metals, or another hydrogen source. In some aspects, the external source of hydrogen comprises hydrogen produced by a halogen acid contacting scrap metal, wherein the halogen acid can be produced by gasifying a halogen-containing polymer such as, for example, polyvinylchloride (PVC), polyvinylidene chloride (PVDC), or any combination thereof. Also disclosed herein are systems useful for carrying out the disclosed methods.

First claim

1 . A method for supplementing syngas to produce a precursor composition for synthesis of at least one industrially useful chemical, the method comprising contacting the syngas with an external source of hydrogen.

2 . The method of claim 1 , wherein the syngas comprises H 2 and CO in a molar ratio of about 1:1.

3 . The method of claim 1 , wherein the precursor composition comprises H 2 and CO in a molar ratio of at least 2:1.

4 . The method of claim 1 , wherein the industrially useful chemical comprises methanol.

5 . The method of claim 1 , wherein the external source of hydrogen comprises hydrogen produced by steam methane reforming (SMR), wherein the SMR is conducted on methane collected from a landfill.

6 . (canceled)

7 . The method of claim 1 , wherein the external source of hydrogen comprises hydrogen produced by steam injected onto molten metals.

8 . The method of claim 7 , wherein the molten metals are obtained by heating scrap metal.

9 . The method of claim 1 , wherein the external source of hydrogen comprises hydrogen produced by a halogen acid contacting scrap metal.

10 . The method of claim 9 , further comprising producing the halogen acid by gasifying a halogen-containing polymer.

11 . The method of claim 10 , wherein the halogen-containing polymer comprises polyvinylchloride (PVC), polyvinylidene chloride (PVDC), or any combination thereof.

12 . The method of claim 9 , wherein the halogen acid comprises HCl, HF, or any combination thereof.

13 . The method of claim 9 , wherein the method further produces a metal halogen.

14 . The method of claim 13 , wherein the metal halogen comprises aluminum chloride.

15 . The method of claim 1 , wherein the method does not use a water-gas-shift reactor.

16 . (canceled)

17 . A system comprising:
(a) a furnace; and (b) a source of steam or water;
wherein, in the furnace, metals are melted and contacted with the steam or water to produce metal oxides and hydrogen gas.

18 . The system of claim 17 , further comprising a condenser for condensing steam or water vapor to a water condensate and separating the water condensate from the hydrogen gas.

19 . The system of claim 17 , further comprising a gasifier, wherein the gasifier produces syngas from a biomass source or a fuel source.

20 . The system of claim 19 , wherein the biomass source comprises municipal solid waste.

21 . The system of claim 19 , wherein the hydrogen gas produced by the system is added to the syngas.

22 . The system of claim 17 , wherein the metals are scrap metals.

Assignees

• Univ Florida

Inventors

• Welt Bruce

Classifications

• C01F7/56

  Chlorides (containing fluorine C01F7/52) · CPC title

• C01B2203/1241

  Natural gas or methane · CPC title

• C01B2203/061

  Methanol production · CPC title

• C01B2203/0205

  containing a reforming step · CPC title

• C01B3/34

  by reaction of hydrocarbons with gasifying agents · CPC title