Find out more CCOONNTTRRIIBBUUETRE CCOONNTTRRIIBBUUETRE Solutions to lower emissions and re-use CO 2 Climate change is a major challenge. Many of the Group’s initiatives allow to reduce CO emissions. 2 1. 2. LOWER CAPTURE SUBSTITUTE OXY-COMBUSTION CRYOCAP™, BIOGAS, TO IMPROVE EFFICIENCY COLD CAPTURE SYSTEM A RENEWABLE ENERGY Burning a fuel using oxygen-enriched Cryocap™ is a process developed by Produced during the methanization air–oxy-combustion–is an effective Air Liquide at its site in Port-Jérôme of biomass (household, industrial and solution for reducing CO emissions of (Seine-Maritime). It captures CO emis- agricultural waste, etc.), biogas can be 2 2 traditional industrial activities. Enriching sions released during the production converted into biomethane via a purifi- the air with oxygen whilst burning fossil of hydrogen by natural gas reforming. cation process, then be used as a subs- fuels improves the combustion process The idea is to use low temperatures titute for natural gas. This biomethane, and reduces CO emissions. Oxy-com- (cryogenic process) to compress, liquefy, which can be injected into the natural gas 2 bustion can also result in obtaining more then separate the gases (CO2 on one network, used as a fuel for vehicles or concentrated CO emissions, which side, H on the other). In addition to the also as a source of energy for producing 2 2 can then be captured and then stored environmental benefit–60 to 90% of CO clean hydrogen, significantly reduces 2 or re-used. Air Liquide participates emissions are captured–the process the ecological impact. 3. in numerous research programs on is also economically interesting as the this type of combustion as well as on captured CO is purified then packaged 2 TM capture technologies for the gas issued for sale. The 100,000 metric tons 1. Oxy-combustion / 2. Cryocap / 3. Biogas from combustion. recovered every year on this site is of interest to food industries in particular for carbonating beverages, as well as for CO IS ALSO AN ESSENTIAL MOLECULE FOR LIFE 2 food preservation and freezing. Enriching the atmosphere of agricultural greenhouses with CO2 stimulates the photosynthesis process and accelerates vegetable growth and ripening. But, in the event of high light intensity, the plant absorbs the CO2 very quickly, which reduces its concentration in the greenhouse. The controlled supply process of pure CO2 offered by Air Liquide offsets this effect. As a result, the target concentration of CO2 is maintained and the growth as well as the quality of the cultures are improved. Very popular in the horticulture sector, the process MILLION METRIC TONS is mainly used when growing vegetables, cut flowers and orchids. Quantity of CO emissions avoided by Group 2 11.5 customers thanks to Air Liquide solutions 2017 data. 40 41