Atmospheric CO2 concentrations have reached critical levels, necessitating both emission reductions and active carbon removal technologies. This research investigates novel carbon capture and utilization (CCU) technologies including direct air capture, mineral carbonation, and CO2 conversion to useful products. We designed and tested modular DAC systems using solid amine sorbents, achieving capture rates of 0.5 kg CO2/day per unit at energy costs of 180 kWh/tonne CO2. Electrochemical conversion experiments produced methanol, formic acid, and carbon monoxide with 78% Faradaic efficiency. Economic modeling reveals break-even points at $95/tonne CO2 with renewable energy integration. The study provides scalable frameworks for implementing CCU technologies in developing regions.