We are developing a new photon detector with micro pattern gaseous detectors. A semitransparent CsI photocathode is combined with 10cm×10cm GEM/μPIC for the first prototype which is aimed for the large liquid Xe detectors. Using Ar+C2H6 (10%) gas, we achieved the gas gain of 10 which is enough to detect single photoelectron. We, then, irradiated UV photons from a newly developed solid scintilla...

Chemical-Looping Combustion (CLC) is an emerging technology for CO2 capture because separation of this gas from the other flue gas components is inherent to the process and thus no energy is expended for the separation. Natural or refinery gas can be used as gaseous fuels and they may contain different amounts of light hydrocarbons. This paper presents the combustion results obtained with a Cu-...

In this work, a new experimental protocol was designed to measure sorption of ternary gas mixtures in polymer membranes for the first time. We measured isotherms binary and C2H6, CO2, CH4 PIM-1, using pressure decay apparatus, working at constant composition variable phase. The results show competitive effects all analyzed, affecting each species proportion total sorbed concentration other comp...

Abstract. We report measurements of atmospheric C3H8 from analysis ground-based solar absorption spectra the Jet Propulsion Laboratory (JPL) MkIV interferometer. Using strong Q-branch feature at 2967 cm?1, we can measure in locations where its abundance is enhanced by proximity to sources (e.g., large natural gas fields, megacities). A case study Fort Sumner, New Mexico, shows that amounts are ...

Abstract. Carbon monoxide (CO), acetylene (C2H2), ethane (C2H6), formaldehyde (H2CO), and hydrogen cyanide (HCN) are important trace gases in the atmosphere. They highly related to biomass burning, fossil fuel combustion, biogenic emissions globally, affecting air quality climate change. However, variations correlations among these species not well known northern China due limited measurements....

Limited direct measurements of criteria pollutants emissions and precursors, as well as natural gas constituents, from Marcellus shale gas development activities contribute to uncertainty about their atmospheric impact. Real-time measurements were made with the Aerodyne Research Inc. Mobile Laboratory to characterize emission rates of atmospheric pollutants. Sites investigated include productio...

In this paper, we report the first grand canonical Monte Carlo simulation study aiming at characterizing competitive trapping of CH4 and C2H6 molecules into clathrate hydrates under temperature conditions typical those encountered surface Titan. Various compositions fluid in contact with phase have been considered simulations, including pure methane, ethane, mixed fluids made various methane/et...