Direct air capture enables sustainable hydrocarbon production in water-scarce regions

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Direct air capture enables sustainable hydrocarbon production in water-scarce regions | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Direct air capture enables sustainable hydrocarbon production in water-scarce regions Henrik Wenzel, Thomas Schöb, David Sholl, Jochen Linßen, Detlef Stolten, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8161590/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted You are reading this latest preprint version Abstract Methanol is an essential chemical for the global economy, but its production typically requires substantial water inputs. Here we investigate the techno-economic potential of water-conscious methanol production across more than 20,000 regions worldwide by integrating direct air capture (DAC) with electrolysis, methanol synthesis and a renewable energy supply system. In 97% of these regions, water availability from ambient air is sufficient, and constraints in the remaining regions can be mitigated through adjusted system design and operation. Our results further highlight the importance of modeling DAC’s weather dependency, as system energy efficiency fluctuates between 39 to 49%, primarily due to variations in DAC energy demand. Air cooling – often overlooked in prior assessments – is identified as a viable strategy for water-conscious cooling, incurring only minor cost increases. Ultimately, the proposed system enables sustainable hydrocarbon production in arid regions worldwide by overcoming the water-energy nexus and sourcing all necessary feedstocks directly from ambient air. Physical sciences/Energy science and technology/Carbon capture and storage Physical sciences/Energy science and technology/Energy modelling Physical sciences/Energy science and technology/Renewable energy Scientific community and society/Energy and society Scientific community and society/Water resources Full Text Additional Declarations There is NO Competing Interest. Supplementary Files GraphicalAbstract.png Graphical Abstract DACsustainablehydrocarbonproductionSIrevised.docx Supplementary Information - Direct air capture enables sustainable hydrocarbon production in water-scarce regions Cite Share Download PDF Status: Under Review Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. 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