Siloxane compounds in biogas: Method development and speciation analysis with GC-ICP-MS

A novel method for the determination of linear and cyclic siloxane compounds (L2, L3, D3, D4, D5, and D6) in biogas was developed by combining gas chromatography (GC) with inductively coupled plasma mass spectrometry (ICP-MS). Using a continuous liquid quench sampling system, biogas samples were collected from a Swiss biogas production plant processing manure and mixed organic wastes. Although significant…

Continue reading

Designing Heterogeneous Catalysts for Renewable Catalysis Applications Using Metal Oxide Deposition

Heterogeneous catalysis has long been a workhorse for the chemical industry and will likely play a key role in the emerging area of renewable chemistry. However, renewable molecule streams pose unique challenges for heterogeneous catalysis due to their high oxygen content, frequent low volatility and the near constant presence of water. These constraints can often lead to the need for catalyst operation in harsh liquid phase conditions, which…

Continue reading

Long-Term Wet Bioenergy Resources: Drivers and Projections until 2050

In the energy sector, decisions and technology implementations often necessitate a mid- to long-term perspective. Thus, reliable assessments of future resource availability are needed to support the decision-making process. In Switzerland, similarly to other countries, only a limited part of the available wet biomass feedstock is currently used for anaerobic digestion. Understanding potential future trajectories of the available biomass amount is…

Continue reading

Nature of Synergy between Brønsted and Lewis Acid Sites in Sn–Beta Zeolites

The role of Lewis and Brønsted acid sites and their potential synergy remains ambiguous for the production of polyoxymethylene dimethyl ethers (OME), which are suitable as a Diesel substitute. Here, this synergistic effect was investigated by using a series of beta polymorph A (BEA) zeolites with various degrees of Brønsted and Lewis acidity. Lewis acidity was introduced in dealuminated zeolites by Sn..

Continue reading

SCCER BIOSWEET Annual Conference 2019

The 6th Biomass for Swiss Energy Future Conference was held at HSLU in Horw on September 3, 2019. Approximately 80 attendees listened to nine presentations, studied the 35 posters along the most relevant biomass value chains in Switzerland, and networked with members of the biomass energy research community and with technology application partners. This year‘s event focused on producing…

Continue reading

A cellulolytic fungal biofilm enhances the consolidated bioconversion of cellulose to short chain fatty acids

The ability of the multispecies biofilm membrane reactors (MBM reactors) to provide distinguished niches for aerobic and anaerobic microbes at the same time was used for the investigation of the consolidated bioprocessing of cellulose to short chain fatty acids (SCFAs). A consortium based consolidated bioprocess (CBP) was designed. The rumen microbiome was…

Continue reading