PRODUCTION, CAPTURE, PURIFICATION AND STORAGE OF BIOGAS FOR THE PRODUCTION OF GREEN HYDROGEN, BIOMETHANE AND BIOGENIC CO2: BIOENERGY AND APPLICATIONS IN THE FOOD INDUSTRY

• Grant number: 24/10205-3
• Support Opportunities: Regular Research Grants
• Start date: December 01, 2025
• End date: November 30, 2028
• Field of knowledge: Engineering - Electrical Engineering - Electrical Materials
• Principal Investigator: Tânia Forster Carneiro
• Grantee: Tânia Forster Carneiro
• Host Institution: Núcleo Interdisciplinar de Planejamento Energético (NIPE). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated researchers: Hudson Giovani Zanin ; Mauro Donizeti Berni ; MONTSERRAT PEREZ GARCIA ; Rosana Goldbeck Coelho

Abstract

The production, capture, purification and storage of biogas for the production of green hydrogen (bio_H2), biomethane (bio_CH4) and biogenic carbon dioxide (CO2), is directly related to sustainability and the reduction of greenhouse gas emissions as it uses organic waste. Biogas obtained from Anaerobic Digestion (AD) can be purified (Upgrading) to produce bio_H2, bio_CH4, biogenic CO2 and remove contaminants such as hydrogen sulfide. The purified gases can be transformed into other products, such as industrial CO2 for carbonating drinks, refrigeration, controlling the atmosphere in food packaging, as well as biofuels, electrical and thermal energy and natural gas. In addition to the environmental benefits with adequate final disposal of waste, it also contributes to the mitigation of climate change. The general objective will be to study the production, capture, purification and storage of biogas coming from AD, from biomass from the food industry, for the production of bio_H2, bio_CH4, biogenic CO2, as well as final products from purified gases (methanol, formic acid, formate, calcium carbonate and carboxylic acids). It will be necessary to build a pilot plant of automated anaerobic reactors with a biogas purification system. The biogas purification system (H2: CH4:CO2) will be studied through various chemical absorption processes, adsorbents, separation membranes, washing with water or aqueous solution, i.e. it will be necessary to study the main operational parameters (temperature and pressure) to obtain final products that meet quality standards as well as to achieve cost savings and circular economy. Finally, technical-economic studies will be studied to verify the valorization of waste, reducing the need for disposal and reducing pollution, reducing greenhouse gas emissions, recirculating materials, generating renewable energy through biomethane, encouraging energy sustainability , improving efficiency through the use of advanced purification technologies and local economic development. (AU)