نتایج جستجو برای: internal reforming

تعداد نتایج: 238633  

Abbas Ali Zeraati Abolghasem Allahyari Elham Galehnavi Kambiz Akhavan Rezayat Mahnaz Amini Mohammad Hasan Jokar Mostafa Jafari Mozhgan Afkhamizadeh Nazila Zarghi Parvin Layegh Reza Afshari, Seyed Reza Mousavi Zahra Mirfeizi, Zahra Mozaheb

Background: Morning reports (MRs) are commonly used as an efficient technique in Medical Education. This study was intended to assess the developmental process following Iranian definable standards in the Internal Medicine Department, Imam Reza General Hospital, Mashhad, Iran. Methods: Following an initial one-month assessment through direct observation of morning reports held in Imam Reza Hosp...

Journal: :iranian journal of health sciences 0
peivand bastani research center for health services management, institute for futures studies in health, kerman university of medical sciences, kerman, iran keyghobad taher nejad 4baghiat allah university of medical sciences, tehran, iran jamil zargan imam hossein university of medical sciences, tehran, iran nasrin shaarbafchizadeh health management and economics research center, school of health management and information sciences, iran university of medical sciences, tehran, iran razieh alishavandi ministry of health and medical education

background and purpose: to determine an appropriate financial model for the health system of iran, several studies have been conducted. but it seems that these studies were not comprehensive and further investigation is required. so to design a valid and enforceable mechanism, the study of policy interventions will be considered through consensus of all stakeholders. this investigation was done...

2001
Robert J. Evans Stefan Czernik Esteban Chornet Calvin J. Feik Richard French Steven D. Phillips

Renewable hydrogen may be produced in the near term at a cost that is competitive with natural gas reforming by integrating hydrogen production with existing industrial utilization of agricultural residues. A team of government, industrial, and academic organizations is developing a steam reforming process to be demonstrated on the gaseous byproducts from a process for making activated carbon f...

2013
Alexandre Lebouvier François Fresnet Frédéric Fabry Valérie Boch Vandad Rohani François Cauneau Laurent Fulcheri

The present study is dedicated to the reforming of Diesel fuel with Diesel engine exhaust gas using a non-thermal plasma torch for NOx trap regeneration application. The plasma technology developed is based on a high voltage / low current non-thermal plasma torch. In the first part of the paper, experimental results on production of synthesis gas from Diesel fuel reforming with ha l-0 06 17 14 ...

2007
Luca Di Felice Claire Courson Katia Gallucci Nader Jand Sergio Rapagnà Pier Ugo Foscolo Alain Kiennemann

1. Introduction Already in 1868 [1], H 2 was produced by the steam reforming (eq.1) of hydrocarbons in the presence of a calcium oxide, and the use of natural calcium-based sorbents as candidates to remove CO 2 in situ from reactors has been receiving increasing attention. Through simultaneous CO 2 absorption (eq.3) the equilibrium of the homogenous water gas shift reaction (eq.2) is shifted to...

Atallah Sari, Javad Sabziani

In this study, the modeling of hydrogen production process in microreactors by methanol-steam reforming reaction is investigated. The catalytic reaction of methanol-steam reforming producing hydrogen is simulated considering a 3D geometry for the microreactor. To calculate diffusion among species, mixture average correlations are compared to Stephan-Maxwell equations. The reactions occurring in...

Journal: :تحقیقات جغرافیایی 0
هادی اعظمی دانشگاه فردوسی مشهد بهادر غلامی دانشگاه تهران

the request for natural gas attention to its adaption with environment and less pollution than the other fossil fuels has the highest growth in last decades. in result this energy has high geopolitical importance. iran with has about 2.18 percent of total world reserves, the largest in the world. but couldn't played important role in the natural gas geopolitics and even it hasn't in b...

Journal: :iranian journal of oil & gas science and technology 2015
javad sabziani atallah sari

in this study, the modeling of hydrogen production process in microreactors by methanol-steam reforming reaction is investigated. the catalytic reaction of methanol-steam reforming producing hydrogen is simulated considering a 3d geometry for the microreactor. to calculate diffusion among species, mixture average correlations are compared to stephan-maxwell equations. the reactions occurring in...

2014
Hiroshi Yoshida Ryohei Yamaoka Masahiko Arai

Hydrogen production through steam reforming of ethanol was investigated with conventional supported nickel catalysts and a Ni-containing smectite-derived catalyst. The former is initially active, but significant catalyst deactivation occurs during the reaction due to carbon deposition. Side reactions of the decomposition of CO and CH4 are the main reason for the catalyst deactivation, and these...

2016
Thomas D. Wheelock Brent H. Shanks

A catalyst and sorbent is disclosed which comprises pellets with an absorbent core and a protective shell with a catalyst in the shell. Such material is especially well suited for steam reforming of hydrocarbons to produce hydrogen since a reforming catalyst can be incorporated in the shell and a sorbent for the by-product carbon dioxide can be used for the core. It is also well suited for prod...

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