Results 71 to 80 of about 262,624 (284)

Quantifying sources of methane using light alkanes in the Los Angeles basin, California [PDF]

open access: yes, 2013
Methane (CH4), carbon dioxide (CO2), carbon monoxide (CO), and C2-C5 alkanes were measured throughout the Los Angeles (L.A.) basin in May and June 2010. We use these data to show that the emission ratios of CH4/CO and CH4/CO2 in the L.A. basin are larger
Aikin, KC   +23 more
core   +2 more sources

A study of condensation of propane-1,3Diamine with formaldehyde [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2012
The condensation of formaldehyde with propane-1,3-diamine gave four products depending on the conditions of the reaction of them dimer, trimer, tetramer and pentamer of N,N΄-bis(methylene)propane-1,3-diamine products (CH2=NCH2CH2CH2N=CH2).
Ahmed H. Shukkur
doaj   +1 more source

Planar Detonation Wave Initiation in Large-Aspect-Ratio Channels [PDF]

open access: yes, 2006
In this study, two initiator designs are presented that are able to form planar detonations with low input energy in large-aspect-ratio channels over distances corresponding to only a few channel heights. The initiators use a single spark and an array of
Austin, J. M.   +2 more
core   +1 more source

Kinetics of Propane Hydrate Formation in Agitated Reactor: A Mass Transfer Approach [PDF]

open access: yesIranian Journal of Chemical Engineering, 2017
Understanding the kinetics of gas hydrate formation is essential to model and predict the hydrate formation (or dissociation) process. In the present paper, we investigated the formation of pure propane gas hydrate as a former gas.
P. Goodarzi, V. Mohebbi
doaj  

Effects of the Reaction Parameters and Light Hydrothermal Aging for Catalytic Combustion of Propane over Co-Mn-Ce Catalyst

open access: yesJournal of Chemistry, 2022
A composite oxides’ Co-Mn-Ce catalyst was synthesized by a coprecipitation method, and the experiment was carried out to study the effects of reaction parameters and light hydrothermal aging on propane combustion over the Co-Mn-Ce catalyst. The influence
Lili Lei   +4 more
doaj   +1 more source

Ethylene Production from Propanal [PDF]

open access: yesPlant Physiology, 1969
Tracer studies using a model system consisting of Cu(2+) and ascorbate indicate that carbons 2 and 3 of propanal are converted to ethylene, and carbon 1 is converted to formic acid and CO(2). A mechanism accounting for this reaction is described. In apple tissue, methionine but not propanal is readily incorporated into ethylene.
A, Baur, S F, Yang
openaire   +2 more sources

In Vivo Evolution of Butane Oxidation by Terminal Alkane Hydroxylases AlkB and CYP153A6 [PDF]

open access: yes, 2009
Enzymes of the AlkB and CYP153 families catalyze the first step in the catabolism of medium-chain-length alkanes, selective oxidation of the alkane to the 1-alkanol, and enable their host organisms to utilize alkanes as carbon sources.
Arnold, Frances H.   +3 more
core   +3 more sources

Dynamic Phase Diagram of Catalytic Surface of Hexagonal Boron Nitride under Conditions of Oxidative Dehydrogenation of Propane. [PDF]

open access: yes, 2018
Partially oxidized surfaces of hexagonal boron nitride (hBN) and several metal borides are unexpectedly excellent catalysts for oxidative dehydrogenation of alkanes to olefins, but the nature of the active site(s) on these B-containing interfaces remains
Alexandrova, Anastassia N   +3 more
core   +2 more sources

Advancements of MOFs in the Field of Propane Oxidative Dehydrogenation for Propylene Production

open access: yesMolecules
Compared to the currently widely used propane dehydrogenation process for propylene production, propane oxidative dehydrogenation (ODHP) offers the advantage of no thermodynamic limitations and lower energy consumption. However, a major challenge in ODHP
Shu-Ting Li   +4 more
doaj   +1 more source

Improving the efficiency of the powerplant of an unmanned aerial vehicle through the use of cryogenic fuel

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2020
The article is devoted to increasing the efficiency of the power plant of an unmanned aerial vehicle through the use of cryogenic fuel. It has been substantiated that the creation of a power plant is based on an integrated approach to the Aircraft Power
A. S. Kolesnikov   +2 more
doaj   +1 more source

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