Sökning: "methane CH4"
Visar resultat 16 - 20 av 124 uppsatser innehållade orden methane CH4.
16. Modeling of Biomass Gasification with Adaptation to Biological Methanation Using Aspen Plus®
Master-uppsats, Lunds universitet/Kemiteknik (CI)Sammanfattning : حظيت البدائل المتجددة باهتمام كبير في ظل انخفاض موارد الوقود الاحفوري المتاحة وزيادة المتطلبات البيئية. ان انتاج المواد الكيميائية والوقود المتجدد من خلال استغلال الكتلة الحيوية يقدم طريقا واعدا لدفع هذا التحول الى الامام. LÄS MER
17. Methane tree stem flux over the course of the spring flood : Spatial and temporal effects in a boreal riparian zone
Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskapSammanfattning : Methane (CH4) tree stem-atmosphere flux is viewed as a new frontier in the global carbon cycle and may be of great importance. The effect on flux from different tree species, forest ecosystems and seasons is still uncertain. LÄS MER
18. Improvement of Pt-based catalyst supported on CeZrO2 used for the high-temperature water-gas shift reaction
Master-uppsats, Lunds universitet/Kemiteknik (CI)Sammanfattning : The iron-chromium (Fe/Cr) catalyst is used for high-temperature water-gas shift (HT WGS) reaction. A major concern using the Fe/Cr catalyst is that it contains hexavalent chromium (Cr+6) which is a potent carcinogen causing health and environmental issues. LÄS MER
19. Climate impact of bioH2 production from biogas using CO2 mineralization for carbon capture and storage
Kandidat-uppsats, SLU/Dept. of Energy and TechnologySammanfattning : Carbon dioxide (CO2) concentrations in the atmosphere are increasing and are now higher than they have ever been, mostly because of CO2 released from burning fossil fuels for energy. Global energy demand will continue to rise in the future, resulting in increased carbon emissions. LÄS MER
20. Methane and Carbon Dioxide Emissions From Three Smallscale Hydropower Stations in South of Sweden
M1-uppsats, Linköpings universitet/Tema MiljöförändringSammanfattning : Over the past decades, evidence show that the anthropogenetic greenhouse gases (GHG) emissions of carbon dioxide (CO₂) and methane (CH₄) are the main drivers behind global warming and are becoming stronger. Globally, hydropower is among the main sources of renewable energy and the popular notion that hydropower electricity is carbon neutral has been under debate as evidence from measurements in different regions of the globe show significant and highly variable carbon emissions from hydropower reservoirs. LÄS MER