https://www.c2es.org/content/carbon-capture/

> carbon dioxide has been used to extract additional oil from developed oil fields in the United States. U.S. companies are also investing in new technologies to re-use captured carbon emissions in innovative ways, including jet fuel and automobile seats. Spurred by the NRG COSIA Carbon XPRIZE, researchers are exploring even more uses, such as transforming carbon emissions into algae biofuels and building materials.

>The largest consumer is the fertilizer industry, where 130 Mt CO2 is used in urea manufacturing, followed by oil and gas, with a consumption of 70 to 80 Mt CO2 for enhanced oil recovery. Other commercial applications include food and beverage production, metal fabrication, cooling, fire suppression and stimulating plant growth in greenhouses.

elaborating further on use as "building materials" (https://news.climate.columbia.edu/2019/05/29/co2-utilization-profits)

> CO2 gas can be turned into a solid aggregate for concrete; this can be done with only minimal external energy—which is one reason why CO2 use in concrete has the largest potential in the short term. CO2 can also be used to cure concrete. For this strategy, wet concrete is infused with CO2, which reacts with water and calcium to form solid calcium carbonates. This spontaneous chemical reaction, which also does not require much added energy, results in concrete that is four percent CO2. Incorporating CO2 into cement could sequester it for hundreds of years in buildings, sidewalks and walls.

also

> The carbon in CO2 enables the conversion of hydrogen into a fuel that is easier to handle and use, for example as an aviation fuel. CO2 can also replace fossil fuels as a raw material in chemicals and polymers. Less energy-intensive pathways include reacting CO2 with minerals or waste streams, such as iron slag, to form carbonates for building materials.