european union activities on using nuclear power for hydrogen production
Influence of the main gasifier parameters on a real system for hydrogen production from biomass
Ngày tải lên :
01/08/2016, 09:32
... the production of waste to be treated Furthermore, in order to increase the hydrogen content, carbon monoxide and methane in the gas have to be converted by high temperature processes as reforming ... gasification reactor, high tar conversion and hydrogen rich syngas production The use of calcined dolomite, limestone and magnetite have been found able to increase the gas hydrogen content [29] even if ... net rate of char production by pyrolysis is equal to the sum of that withdrawn from the gasification zone and that consumed by gasification reactions, so to make the accumulation term in (9) always...
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Polymeric membranes based on CO2 philic materials for hydrogen purification and flue gas treatment
Ngày tải lên :
09/09/2015, 17:55
... utilization of the produced hydrogen [9] Pressure swing adsorption (PSA) and cryogenic distillation are the most conventional methods used for the purification of hydrogen [10,11] The former is ... separation Fig 10 Robson upper bound for O2/N2 separation 1.4.2 Hydrogen separation Hydrogen is an important feedstock in petroleum and chemical industries It has large application in the production ... Sustainable paths to hydrogen The steam reforming of natural gas is the current dominant industrial process for hydrogen production (eq 1-1) Depending on the application, the hydrogen yield and...
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Immobilized enzymes and chemical catalysts on nanoporous SBA 15 for biodiesel production via transesterification
Ngày tải lên :
10/09/2015, 08:25
... Transesterification of triglyceride with alcohol Consecutive reactions of transesterification Mechanism of homogeneous base transesterification Sponification by base catalyst and FFAs formation by promotion ... relevant to biodiesel production, catalyst for biodiesel production and the promising SBA-15 support for biodiesel production Chapter demonstrates the experimental steps in details for synthesis of ... synthesized using gel formation via co-precipitation as a novel base catalyst for biodiesel production The catalyst is fully characterized and used as an active catalyst for the transesterification of...
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Progress in biomass gasification technique – With focus on Malaysian palm biomass for syngas production
Ngày tải lên :
02/08/2016, 09:34
... fed Syngas Drying Zone Drying Zone Pyrolysis zone Reforming zone Pyrolysis zone Oxidation zone Throat Air Air Air Oxidation zone Syngas Fig Conguration and operating mechanism for (a) updraft and ... This section examines the selection of gasier criteria based on the consideration of feedstock size distribution, bulk density and propensity for char formation under working conditions of different ... gasication time increased When the moisture content was reduced in the feedstock, steam and hydrogasication reactions become slower Therefore, formation of CO2 by oxidation in the oxidation zone formed...
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Methane cracking over commercial carbons for hydrogen production
Ngày tải lên :
05/09/2013, 15:28
... (160-201kJ/mol for ACs and 205-236kJ/mol for CB) The rate of methane cracking reaction is the sum of rates of carbon nuclei formation and carbon crystallites growth The rate of carbon nuclei formation is ... methane conversion (50% for AC1, 45% for AC2 and 51% for AC3) and initial methane cracking rates (0.6mmol/min.g for AC1, 0.55mmol/min.g for AC2 and 0.623mmol/min.g for AC3) of activated carbons have ... (Table 3) confirm the above phenomenon Figure Methane conversion (mole %) for different Carbons (T: 8500C; VHSV 1.62 Lit/hr.g) Figure Methane decomposition rate (mmol/min.g) for different carbons (T:...
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membrane reactors for hydrogen production processes
Ngày tải lên :
01/04/2014, 10:34
... definition of process multi-staged configuration Chapter deals with alkanes dehydrogenation Olefins production by catalytic dehydrogenation of light alkanes might be an alternative to conventional ... reactions (irreversible reactions) require very high conversions to reach equilibrium conditions at a given temperature, whereas for other reactions a quite low value of the conversion corresponds ... constraint (equilibrium constant) on mole fractions (or concentrations), temperature, and pressure; this constrain derives from the second principle of thermodynamics At equilibrium conditions,...
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inorganic membranes for hydrogen production and purification a critical review and perspective
Ngày tải lên :
13/05/2014, 01:01
... stable Therefore, they are attractive for applications in hydrogen production reactions There are various types of porous membranes that have been tested for hydrogen separation or production in the ... reactors for hydrogen production In this article, we focus our review on the inorganic membranes systems for hydrogen separation and for membrane reactors involving the removal of hydrogen Hydrogen-permselective ... reported for use in H2 production application is based on alumina mesoporous membranes [50] However, most of the separation data were for helium and carbon tetrafluoride, not for hydrogen Even for...
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Development of supported nanocatalysts for hydrogen production technologies
Ngày tải lên :
04/10/2015, 15:58
... 1.1.2 Hydrogen as a fuel – Advantages and problems to implementation p.3 1.2 Hydrogen production p.5 1.2.1 Hydrogen production by the electrochemical splitting of water p.5 1.2.2 “Solar-powered” hydrogen ... economy to a hydrogen- based economy would only be possible with sustainable and viable hydrogen production technologies In this thesis, the development of nanocatalysts for hydrogen production via ... will only be concerned with the development of catalysts for thermochemical methods of hydrogen production One aspect of this thesis will be to look at the production of hydrogen using two different...
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Parametric analysis of a circulating fluidized bed biomass gasifier for hydrogen production
Ngày tải lên :
29/07/2016, 14:03
... and Zhong [28] Keawpanha et al [29] Calculated by modified Dulong's equation [30] Table Standard operating conditions during the biomass gasification process Gasification operating condition Biomass ... composition are quite small Three main reactions govern the product gas composition: hydro gasification (4), wateregas shift reaction (7), and steammethane reforming reaction (8) The reforming reaction ... produce more CO2 and H2 In addition, the wateregas shift reaction has a stronger effect on the CO content than the reforming reaction; therefore, the decreased CO content is primarily attributed...
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reinforced concrete design for thermal effects on nuclear power plant structures
Ngày tải lên :
24/10/2014, 22:00
... member axial forces were evaluated to confirm that section cracking still corresponds to the pure bending condition of Assumption Recall that e/d must be at least 0.5 for this condition For Members ... reinforced section reduces to Mbf for a singly reinforced section (Eq [3-4]), with the substitution of (l.l)d for t in Eq (3-4) and for Q’n in Eq (3-2) In addition, the substitution of k 2/2 for ... section forces N and M will necessarily be long-term, the selection of 2n for compression reinforcement is consistent with design practice The results in Sections 3.2 and 3.3 are based on a linear...
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A study on possible effective pre-reading activities to improve reading skills for 2nd- year english majors at the military science academy
Ngày tải lên :
07/11/2012, 14:50
... suggestions for these activities Data were collected through the survey questionnaires and class observation Analyzing statistics from the survey questionnaire on reading activities conducted ... topics they like and read for enjoyment without consideration for pressure of time, intense concentration, and total comprehension ER therefore, is regarded as an effective way for the students to ... preferences for teachers’ ways of introducing new vocabulary B1: by using synonyms, antonyms (75%) B2: by using definition or explanation (50%) B3: by using visual aids (40%) B4: by using games...
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Tài liệu tiếng anh Điện tử công suất mạch MERS A new AC current switch called MERS with low on state voltage IGBTs for renewable energy and power saving applications
Ngày tải lên :
15/10/2013, 16:10
... well as the forward voltage of FWD (free wheeling diode) A Loss reduction of wind power conversion system With the trend going toward full-converter solutions for wind power applications, a lot ... configuration can contribute to energy savings and promote renewable energy conversion B Induction heating Fig 11 1) Controllable frequency induction heating: Induction heating is widely used for ... evaluate performance of series connection of IGBTs V C ONCLUSION Experiments using test facilities for induction heating of steel were conducted Capacitor of the MERS was selected based on typical...
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A study on communicative activities in english reading classes for the 10th from students
Ngày tải lên :
18/12/2013, 10:03
... communication in the classroom such as Reaching a Consensus, Relaying Construction, Communication games, Problem Solving, Interpersonal Exchange, Story Construction and Simulation and Role Play For ... into two types: one is for students at the basic level of English and the other is for advanced ones Within the scope of this study, the author only conducts the research on the one for basic English ... appropriate activities for their reading lessons - Selecting communicative activities in reading lessons for the 10 th form students must share some characteristics of Communicative Activities in common...
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Tài liệu Data and Information on Women’s Health in the European Union docx
Ngày tải lên :
12/02/2014, 23:20
... The information contained in this publication does not necessarily reflect the opinion or the position of the European Commission Neither the European Commission nor any person acting on its ... and Sabrina Gaitzsch for their invaluable assistance in the preparation of this report European Commission Data and Information on Women’s Health in the European Union Foreword Dear Reader, ... behalf is responsible for any use that might be made of the following information Europe Direct is a service to help you find answers to your questions about the European Union Freephone number...
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Tài liệu Đề tài " On the classification problem for nuclear C -algebras " pdf
Ngày tải lên :
16/02/2014, 06:20
... is a monomorphism, and, for each g ∈ S∞ , ι(g) acts trivially on each F ∈ FR The information which goes undetected by FR is thus complicated indeed ON THE CLASSIFICATION PROBLEM FOR NUCLEAR ... complete for a sufficiently well behaved class of C∗ -algebras We have proved that ON THE CLASSIFICATION PROBLEM FOR NUCLEAR C ∗ -ALGEBRAS 1043 the moment one relaxes the slow dimension growth condition ... condition for AH algebras (and therefore, a fortiori for ASH algebras), one obtains counterexamples to the Elliott conjecture of a particularly forceful nature, so that slow dimension growth is connected...
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Revised version for the consideration of Contact Committee of the Heads of the SAIs of the European Union docx
Ngày tải lên :
06/03/2014, 23:20
... The Contact Committee of Heads of EU SAIs for its information and other use it may deem appropriate; and • The EUROSAI and INTOSAI General Secretariats for their information and consideration *** ... findings, conclusions and SAIs with a strong reputation for the consistently high quality of their work exhibit certain characteristics in common, regardless of their organisational structure Among ... Recommendations concerning the Functioning of Supreme Audit Institutions in the context of European Integration (1999, Prague) http://www.sigmaweb.org/PDF/EA_FC/Recommendations_SAIsfunctioning.pdf...
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Báo cáo khoa học: "Two diverse systems built using generic components for spoken dialogue (Recent Progress on TRIPS)" potx
Ngày tải lên :
08/03/2014, 04:22
... challenges For example: Information must flow asynchronously between dialogue components, so that actions can be triggered based on partial utterances even while the understanding continues There ... and Ferguson 2002) This model forms the basis of a generic component (the collaboration manager) that supports both intention recognition to identify the intended speech acts and their content, ... transformations These representations are thus transformed in several stages The first, using the ontology mapping rules, maps the LF representation into an intermediary representation (AKRL - the abstract...
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SPECIAL EUROBAROMETER 359: Attitudes on Data Protection and Electronic Identity in the European Union pdf
Ngày tải lên :
23/03/2014, 03:20
... Disclosing personal information 1.2.1 Information considered as personal – Medical information, financial information and identity numbers are regarded as personal information by more than seven Europeans ... of the Europeans see disclosing personal information as an increasing part of modern life Information considered as personal is, above all, financial information (75%), medical information (74%), ... Financial information - Financial information is more likely to be considered as personal by Internet users who shop online Three-quarters of European respondents consider financial information, such...
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