Make fuel from air and water
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The ongoing Middle East conflict has triggered an oil crisis amid rising tensions in the Gulf region. Amid this crisis, a Chinese start-up has claimed to have mastered a technique for producing synthetic petroleum at low cost from air and water, reports South China Morning Post. The Shanghai-based startup Carbonology announced it had created a process for converting carbon dioxide extracted from air and water into artificial fuel using solar and wind energy . This comes at a time when China is ramping up its efforts to develop alternatives to traditional fossil fuels amid the US-Israel war against Iran.China has long braced for a Gulf oil supply shock - but the Iran war's disruption of a key global shipping route is now putting its resilience to the test. China, the world's largest buyer of oil, is also feeling the strain.Co-founded by a former vice-president at Tesla in 2024, Carbonology said it had achieved sufficient cost reductions to sell synthetic petrol, diesel, jet fuel and naphtha at market-competitive prices, according to the report. The report added that the firm plans to roll out “large-scale production capacity in China”. During a phone interview, a member of staff at Carbonology confirmed the report was accurate but declined to provide further details.China’s clean energy push is gaining momentum as Carbonology joins a growing list of domestic firms investing in advanced carbon capture technologies. These companies are focusing on Direct Air Capture (DAC), a fast-evolving sector that removes carbon dioxide directly from the atmosphere. While the technology has moved from experimental research to real-world application over the past decade, experts remain cautious about its long-term scalability and cost-effectiveness.So far, most captured carbon emissions have been stored underground rather than converted into usable fuels—highlighting a key limitation even as innovation accelerates in the space.According to the South China Morning Post (SCMP), this development aligns with China’s broader strategy to reduce its heavy reliance on imported crude oil. The country currently imports over 70% of its oil, with a significant share coming from the Middle East. Ongoing geopolitical tensions in the region have disrupted supply chains and triggered price volatility, underscoring the urgency for alternative and more secure energy solutions.As global energy risks rise, China’s investment in carbon capture and fuel conversion technologies signals a strategic shift toward energy independence and long-term sustainability.Scientists produce synthetic fuel (e-fuel) from air and water by capturing atmospheric carbon and splitting water into hydrogen and oxygen using renewable energy. These components are then combined through thermochemical processes, such as Fischer-Tropsch or methanol synthesis, to create hydrocarbon fuels (gasoline, diesel) that are compatible with existing engines.Experts remain cautious despite rapid progress in carbon capture technologies. While Direct Air Capture (DAC) has advanced significantly in recent years, most of the captured carbon dioxide is still being stored underground instead of being converted into usable fuel—raising questions about its real-world impact.Studies highlight a major challenge: cost. Synthetic fuels produced through these technologies remain expensive and energy-intensive. In the United States, reports suggest such fuels can cost up to four times more than conventional petrol, making large-scale adoption difficult.Key barriers continue to slow growth, including low efficiency, high production costs, and limited infrastructure. These challenges have kept carbon-based fuel alternatives from competing with traditional energy sources.Despite these concerns, Carbonology is pushing ahead with aggressive investment in research and development. The company has set up a new facility in Shanghai, aiming to scale its technology and move closer to commercial deployment.