this work, the theoretical energy consumption of CO2 separation from flue gas, lime kiln gas, biogas and bio-syngas was … calculated. The results show that the energy consumption of CO2 separation from flue gas is the highest and that from biogas is …

solids content was higher than that from the raw slurry with either a high or low solids content. In terms of biogas …), 57.6–80.1% of the biological oxygen demand (BOD5). In particular, it produced more than 75% of the total biogas yield …: enhanced digestion temperature and increased concentration of the substrate, could improve the efficiency of the entire biogas …

In this paper, a gas engine system capable of stable operation at any mix ratio of city gas 13A and biogas was …, biogas and load. Before developing the controller, the effect of the mix ratio on generation efficiency and NOx emission was … rotational speed and exhaust O2 concentration was realized in 5s when the biogas fraction varied from 20% to 40% and from 70% to …

(CSTR) with different mixture ratios of AW and SM at mesophilic temperature. The ultimate biogas and methane productivity of … mixture of AW and SM improved the biogas yield by approximately 16% and 48% at mesophilic and thermophilic temperatures … rapidly and the pH, methane content, and biogas production decreased continuously when the AW content in the feed was …

A regional model for sustainable biogas electricity production was formulated and tested for a Finnish province, North … renewable energy (RE) production in the studied region in the biogas electricity production system. The system boundary of the … model included transportation of waste, biogas production, heat and electricity production, as well as the delivery of heat …

; detoxified up to 75%) non-edible oil seed cake, Madhuca indica, for biogas production. Different treatments comprising of varying … better results compared to raw cake. Combination of 50% hot water detoxified MC and 50% CD gave maximum biogas production of …

This paper outlines the results of a comprehensive life cycle study of the production of energy, in the form of biogas …. The results show that compared with alternative energy supply the production and use of biogas is beneficial in terms of … inorganics. These were found to be a result of ammonia emissions during the production phase of the biogas. These damages can be …