نتایج جستجو برای: propane

تعداد نتایج: 3880  

2014
James C. Lin

Due to the flammability and explosion characteristics of the propane vapor cloud, a nearby propane tank farm could possibly present a significant risk to the operation of nuclear power plants. Accidental releases of propane may occur in the propane supply pipeline, at the propane storage tanks, or on the propane transportation routes due to propane transport trailer truck accidents. Loss of con...

2011

Chem. Abstr. Services Reg. No.: 1675-54-3 Chem. Abstr. Name: 2,2' -r (I-Methylethylidene )bis( 4, I-phenyleneoxyethylene) )bis(oxiane) . IUPAC Systematic Name: 2,2'-r(1-Methylethylidene)bis(4,i-phenyleneoxyethylene) )bis( oxiane ) Synonym: 4,4' -Bis(2,3-epoxyropoxy)diphenyldimethylmethane; 2,2-bisfpara-(2,3epoxyropoxy)phenyl)propane; 2,2-bisr 4-(2,3-epoxyropoxy)phenyl)propane; bis( 4glycidyloxy...

2013
Alfonso Ibarreta

Natural gas, composed mainly of methane, is in some ways similar to propane gas. Both fuels have similar energy densities per unit mass, and similar laminar premixed flame burning velocities. However, propane explosions have been shown to produce higher overpressures in unconfined explosion tests when compared to methane. In vapor cloud explosion modeling, methane is considered to be a “low” re...

Seyed Mehdi Alavi, Yousef Zeinaly

Supported vanadia catalyst was successfully synthesized using wet impregnation of gamma-Alumina to study Propane Oxidative Dehydrogenation (POD). The prepared catalysts were characterized with XRD, BET, and TPR tests. In a broad temperature range (340 to 630°C), effects of vanadia loading (2.7, 5.4, and 9 wt%) and propane to oxygen ratio (3/1 to 1/3) were investigated on propane conversion as w...

The thermal oxidation of propane in the temperature range 350-425oC was studied in order to elucidate the role of higher aldehydes as degenerate branching intermediates in the oxidation of hydrocarbons. In the slow combustion of propane, the high yield of propylene and methanol as the primary products, the formation of hydrogen peroxide, carbon monoxide, carbon dioxide, formaldehyde and steam a...

2016
Lei Zhang Yajing Liang Wei Wu Xiaoming Tan Xuefeng Lu

BACKGROUND Propane, a major component of liquid petroleum gas (LPG) derived from fossil fuels, has widespread applications in vehicles, cooking, and ambient heating. Given the concerns about fossil fuel depletion and carbon emission, exploiting alternative and renewable source of propane have become attractive. In this study, we report the construction of a novel propane biosynthetic pathway in...

Seyed Mehdi Alavi, Yousef Zeinaly

Supported vanadia catalyst was successfully synthesized using wet impregnation of gamma-Alumina to study Propane Oxidative Dehydrogenation (POD). The prepared catalysts were characterized with XRD, BET, and TPR tests. In a broad temperature range (340 to 630°C), effects of vanadia loading (2.7, 5.4, and 9 wt%) and propane to oxygen ratio (3/1 to 1/3) were investigated on propane conversion as w...

2010
Tobias Schwörer Ginny Fay

Could propane from Alaska’s North Slope reduce energy costs for electric utilities and residential space heating, water heating, and cooking demands? We explored the hypothesis that propane is a viable alternative for fourteen selected communities along the Yukon and Kuskokwim Rivers, coastal Alaska, and Fairbanks. Our analysis forecasts propane and fuel prices at the wholesale and retail level...

Journal: :Biotechnology and bioengineering 2010
Jonathan O Sharp Christopher M Sales Lisa Alvarez-Cohen

Propane-induced cometabolic degradation of n-nitrosodimethylamine (NDMA) by two propanotrophs is characterized through kinetic, gene presence, and expression studies. After growth on propane, resting cells of Rhodococcus sp. RR1 possessed a maximum transformation rate (v(max,n)) of 44 ± 5 µg NDMA (mg protein)(-1) h(-1); the rate for Mycobacterium vaccae (austroafricanum) JOB-5 was modestly lowe...

2017
Dudari B. Burueva Alexey S. Romanov Oleg G. Salnikov Vladimir V. Zhivonitko Yu-Wen Chen Danila A. Barskiy Eduard Y. Chekmenev Dennis W. Hwang Kirill V. Kovtunov Igor V. Koptyug

Hyperpolarized (HP) propane produced by the parahydrogen-induced polarization (PHIP) technique has been recently introduced as a promising contrast agent for functional lung magnetic resonance (MR) imaging. However, its short lifetime due to a spin-lattice relaxation time T1 of less than 1 s in the gas phase is a significant translational challenge for its potential biomedical applications. The...

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