Carbon storage using ash, seawater, and alkali activator as a non-cement-based building materials
US11174201B1 · kind B1 · utility
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Key dates
| Filing date | Oct 23, 2019 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Mar 7, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Carbon dioxide and ash are two major waste by-products from coal fire production. Presented herein is are methods, material, and devices for storing carbon using high ash-content building material. The idea is to generate materials with commercial values to offset the cost for carbon capture. Ash with alkali activator (geopolymer) concrete has been studied extensively for its superior performance (higher strength) than ordinary Portland cement (OPC) concrete. However, most geopolymer concrete needs energy input in the forms of pressure and heat, which in turn are usually based on electricity produced through power plants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.