Guide to develop a project of valorisation of bio-CO₂ produced from methanization

After a previously published technical guide for the valorisation of CO₂ produced from methanization, this guide aims at indicating information, questions, returns on experience and data gathered by some actors of the sector, in order to favour the development and implementation of projects. It aims at helping operators of methanization unit in injection to address and to anticipate the different steps of development of a valorisation project of bio-CO₂ produced from methanization, and at presenting stakes of the valorisation of bio-CO₂ produced from methanization. After a presentation of bio-CO₂ definition and assets, it indicates steps of development of project, how to assess the project potential and how to find outputs. It reports case studies of autonomous, territorial, and farm-based methanization. It also addresses additional aspects: main usages of liquid CO₂, interests and expectation of consumers, direct usages through ducts, food grade, bio-CO₂ from methanization and carbon print, technical aspects of a liquefaction unit, economic aspects, road transport of CO₂, innovative ways of CO₂ valorization