In this work it is analyzed the performance of an iron waste material as oxygen carrier for a chemical-looping combustion (CLC) system. CLC is a novel combustion technology with the benefit of inherent CO2 separation that can be used as a source of energy for the methane steam reforming process (SR). The tail gas from the PSA unit is used as fuel in the CLC system. The oxygen carrier behaviour ...

Preliminary experiments have shown that helium gas can be considered a good choice to be used in electron cyclotron resonance (ECR) studies, at the same time as a carrier gas and as a source of production of free electrons. An account of destruction of He metastable atoms present in the flowstream is given. Changes in the linewidth with or without the electron scavenger and thermalization of th...

The growth of molecular organic thin films by the process of organic vapor phase deposition (OVPD) was initiated by Professor Steve Forrest OVPD transports organic molecules to a cold substrate by a hot inert carrier gas. It has proven useful for the deposition of organic semiconductors, and is capable of patterned growth with micron resolution. Professors Benziger and Forrest collaborated to e...

The Genesis Discovery mission returned solar matter in the form of the solar wind with the goal of obtaining precise solar isotopic abundances (for the first time) and greatly improved elemental abundances. Measurements of the light noble gases in regime samples demonstrate that isotopes are fractionated in the solar wind relative to the solar photosphere. Theory is required for correction. Mea...

Due to the feasibility of ethanol production in the United States, ethanol has become more attractive as a fuel source and a possible energy carrier within the hydrogen economy. Ethanol can be stored easily in liquid form, and can be internally pre-formed prior to usage in low temperature (200 o C – 400 o C) solid acid and polymer electrolyte membrane fuel cells. However, complete electrochemic...

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-...

The chemical composition and in vitro gas production of some leguminous browse species were evaluated. Crude protein (CP) content was highest (P

BACKGROUND Uptake of a second gas of a delivered gas mixture decreases the amount of carrier gas and potent inhaled anesthetic leaving the circle system through the pop-off valve. The authors hypothesized that the vaporizer settings required to maintain constant end-expired sevoflurane concentration (Etsevo) during minimal-flow anesthesia (MFA, fresh gas flow of 0.5 l/min) or low-flow anesthesi...