Methods and systems for producing activated silicate based materials using sustainable energy and materials

Patent metadata

Field	Value
Publication number	US-2022127151-A1
Application number	US-202117535435-A
Country	US
Kind code	A1
Filing date	Nov 24, 2021
Priority date	Sep 19, 2016
Publication date	Apr 28, 2022
Grant date	—

Abstract

A method and system for producing highly activated silicate material, wherein the silicate source material is provided for reaction with a reforming agent in a reforming process. The reforming process is a hydrothermal process and/or a high temperature silicate reforming (HTSR) process. A heat source heats reaction materials to a reaction temperature in the presence of a reaction medium. For the hydrothermal reaction process, the reaction medium and heat source are an exhausted steam that is a byproduct of another industrial process. For the HTSR process, the silicate source material and the heat source are a molten slag byproduct from another industrial process.

First claim

What is claimed is:

1 . A method of producing activated silicate material comprising:
providing a silicate source material; intermixing a reforming agent with the silicate source material; providing heat from a waste heat source to the silicate source material and the reforming agent to initiate a reforming reaction; reforming the silicate source material to an activated silicate material via a hydrothermal process or a high temperature silicate reforming process; extracting value materials from the activated silicate material; and recycling at least a part of the reforming agent.

2 . A system for producing activated silicate material comprising:
a reaction chamber; a silicate material input in communication with the reaction chamber configured to provide a source of silicate material to the reaction chamber; a reforming agent input in communication with the reaction chamber configured to provide a source of reforming agent to the reaction chamber; a reaction medium input in communication with the reaction chamber configured to provide a reaction medium to the reaction chamber; at least one conduit positioned to communicate the silicate material, the reforming agent, and the reaction medium input to the reaction chamber; a heat source configured to provide heat to the system; and an activated silicate material output from the reaction chamber.

3 . The system according to claim 2 , wherein the silicate material source comprises a water-based slurry.

4 . The system according to claim 2 , wherein the silicate material source is a calcium mineral, a magnesium mineral, slag, mine tailing, fly ash, kiln dust, or a combination thereof.

5 . The system according to claim 2 , wherein the heat source is an industrial energy production source, an industrial energy production process, waste energy source, molten iron slag, molten steel slag, a flue gas, an exhaust gas, exhausted steam, or a combination thereof.

6 . The system according to claim 2 , wherein the reaction medium is an industrial plant exhaust source, air source, nitrogen gas source, oxygen gas source, carbon monoxide gas source, or a combination thereof.

7 . The system according to claim 3 , further comprising a process module in communication with the silicate material source configured to initiate a non-silicate-activation process utilizing heat from molten slag, wherein the silicate material is the molten slag, wherein the non-silicate-activation process is an endothermic reaction.

8 . The system according to claim 7 , wherein the process module comprises a feedstock input in communication with the reaction chamber configured to provide a feedstock to the reaction chamber.

9 . The system according to claim 3 , further comprising an elemental extraction module for extracting value materials from the activated silicate material.

Assignees

• Univ Columbia

Inventors

• Park Ah-Hyung Alissa
• Zhou Xiaozhou
• Zhou Chengchuan

Classifications

• C01B33/20 Primary

  Silicates (persilicates C01B15/14 {; containing aluminium C01B33/26}) · CPC title

• C01F11/12

  from silicates · CPC title

• Y02P20/129

  Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines · CPC title

• Y02C20/40

  of CO2 · CPC title

• C01F5/14

  Magnesium hydroxide · CPC title