Guillermo Jara, sales and process engineer at HRS, gave a technical presentation at the International Bioenergy Congress, focusing on heat transfer solutions to improve the energy balance in anaerobic digestion plants. His presentation drew on the experience of HRS, a company with over 40 years of experience in heat transfer and process optimization. The presentation aimed to highlight areas where heat exchangers in anaerobic digestion plants can be improved and how HRS addresses these issues.
First, Jara mentioned heating digesters with internal tube rings, a traditional system with maintenance and performance issues. HRS proposes a modular external recirculation solution that preheats the sludge before it enters the digester, preventing sedimentation and reducing the risk of blockages. This solution is easier to maintain and minimizes downtime.
In the area of gases and cogeneration engines, Guillermo Jara highlighted the importance of recovering heat from exhaust gases. HRS offers heat exchangers designed for this purpose, which reduces energy losses and improves plant efficiency . Biogas dehumidification was also addressed, another crucial aspect for the performance of cogeneration engines. HRS offers solutions for this process, ranging from individual units to turnkey systems with chillers and droplet separators.
HRS's biogas heat recovery and cooling system has experienced significant growth in recent years, highlighting its effectiveness in improving plant performance. Recirculation technology with tube-in-tube heat exchangers was mentioned as a highly efficient option , especially in anaerobic digestion plants with higher fiber content that can cause blockages in the exchangers.
Another critical aspect addressed was sludge pasteurization, with the aim of complying with hygiene regulations. HRS offers pasteurization systems that include energy recovery and a modular design that allows for simple and efficient maintenance . The concentration of digestate was also highlighted as a way to reduce sludge management costs and produce biofertilizers.
Guillermo Jara concluded his presentation by emphasizing HRS's commitment to optimizing the energy balance in anaerobic digestion and biogas plants. The company offers itself as a point of contact to provide solutions with both turnkey plants and heat exchangers, backed by its extensive experience in thermal transfer and processes. The audience had the opportunity to visit the HRS booth to obtain more information or clarify doubts.