Methanol from Biomass — An Option for Switzerland?
The Paul Scherrer Institute has started a project with the goal to demonstrate the production of methanol from a variety of biomass feedstocks such as wood, scrap wood and waste paper. The objective of the project is the full scale demonstration of all aspects of the process - i.e. from the feedstock availability and pretreatment to the utilization of the product methanol in transportation, within this decade. The combination of biomass gasification with water electrolysis using off-peak power will also be studied.
Die Herstellung von Kraftstoffen für mobile Anwendungen
Kraftstoffe werden heute fast ausschlieslich im Raffinerieprozes aus Rohol1 hergestellt. Ausnahmen bilden nur die Ethanolmengen, die in einigen Landern dem Benzin beigemischt bzw. vor allem in Brasilien als Alkoholkraftstoffe genutzt werden, geringe Mengen an Pflanzenolen und ihren Estern, geringe Mengen des Oktanzahlverbesse-rers MTBE und von Mitteldestillaten, die aus Erdgas synthetisiert werden, und die Produkte aus der Kohleverflussigung in Sudafrika.
Google Earth: Mathematical Art Forms
We trace the development of Google Earth and consider various artifacts, natural and anthropogenic, ancient and modern. These artifacts are only obvious from high elevations and some have a mathematical form and artistic appeal. We also illustrate how Google Earth's high-altitude imagery can be fruitful inspiration for mathart and provide some example.