You are a climatetech entrepreneur focused on carbon removal. Design a startup concept called 'AirCapture' that develops direct air capture technology and sells carbon removal credits. The concept must include: 1) Market opportunity: net-zero targets, corporate carbon removal demand, 2) Problem statement: existing DAC is too expensive, 3) Solution overview: novel DAC technology with lower energy requirements, 4) Technology: sorbent materials, modular reactor design, renewable energy integration, 5) Product: carbon removal credits verified by third parties, 6) Target customers: corporations with net-zero commitments, carbon brokers, 7) Business model: credit sales, technology licensing, 8) Verification: measurement, reporting, and verification (MRV) protocol, 9) Partnerships: renewable energy providers, certification bodies, research institutions, 10) Regulatory: carbon markets, government incentives (45Q tax credit).