Be generated from oil, natural gas, and coal. The combustion of these fuels is a major source of carbon dioxide emissions. Unfortunately, a perceived change in the global climate has been attributed to the increasing concentration of green house gases such as co2 in the atmosphere. Geological sequestration of carbon dioxide is a potential solution to this problem. Typical geological sequestration consists in capturing and storing the gas in a geological setting such as active and depleted oil/gas reservoir, deep brine formations, deep coal seams, and coal-bed methane formation . Sequestration of carbon dioxide in marine and arctic hydrates is considered as an advanced geologic sequestration concept, which needs further investigation . Gas hydrates are found in nature, in permafrost and marine environments. They contain mixtures of gases such as methane and ethane, with carbon dioxide and hydrogen sulfide as trace. Methane is the predominant component of natural gas hydrates, which is the reason they are simply called methane hydrates. cheap generic viagra buy cheap viagra cheap viagra viagra without a doctor prescription cheap viagra nationalityinworldhistory.net/bsh-women-viagra-for-sale-ao/ viagra cheap online canada generic viagra http://nationalityinworldhistory.net/bsh-buy-viagra-on-the-internet-xd/ buy generic viagra
Gas hydrates form under specific conditions: (1) the right combination of pressure and temperature (high pressure and low temperature), (2) the presence of hydrate-forming gas in sufficient amounts, and (3) the presence of water. Co2 and ch4 hydrates are of interest with greenhouse gas being a preferential hydrate guest former when compared to ch4. In addition, co2 hydrates are more stable than ch4 hydrates, and the exposition ch4 hydrates to carbon dioxide has resulted in the release of methane, while carbon dioxide remained trapped. Thus, the use of carbon dioxide to recover natural gas from hydrate deposits has gained more and more relevance in the industry. Other techniques are being explored in the area of production from hydrate deposits. However, the resource is still not commercially viable due to technical, environmental, and economic issues. Any further investigation of the mixed co2–ch4 gas hydrate properties could lead to major breakthroughs in the fields of unconventional resource production and carbon sequestrat.
cadru pitoresc, pe Valea Draganului, in Muntii Apuseni, la 70
de km de Cluj-Napoca, Pensiunea
Andreea va asteapta sa petreceti
cateva zile minunate intr-o atmosfera relaxanta, departe de
aglomeratia urbana si stresul cotidian.
Pensiunea se afla la o altitudine
de 550m, in apropierea masivului Vladeasa jud. CLUJ, in apropierea
barajului si lacului DRAGAN si Casei Memoriale OCTAVIAN GOGA
Construita intr-o frumoasa imbinare
de rustic cu elemente moderne, Pensiunea Andreea sta la dispozitia oaspetilor cu o serie de
servicii care sa faca sederea dumneavoastra cat mai placuta
si mai familiara. Salonul de servire a mesei este frumos decorat
cu obiecte traditionale romanesti, plecand de la decoratiunile
de pe pereti si terminand cu scaunele si mesele care intregesc
acest ansamblu pitoresc. Urcand scarile, la etaj, cadrul este
schimbat, confortul si modernul luand locul rusticului.
Pe timpul iernii se pot practica sporturi de sezon pe partia de schi ce se afla la 15 km de pensiune, dotata cu teleschi.