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Preparation and thermal treatment of Pd/Ag composite membrane on a porousα-alumina tube by sequential electroless plating technique for h_2 separation

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Journal of Natural Gas Chemistry 2008年第4期17卷 321-326页

作者： E.navaei alvar M.Reza Golmohammadi M.Rezaei h.navaei alvar A.Mardanloo S.habibzad Nouhian M.Didari Department of Mining & Metallurgy Engineering Amirkabir University of Technology Sarv Oil & Gas Industries Development Co Department of Chemical Engineering Faculty of EngineeringUniversity of Kashan

Pd/Ag/α-Al2O3 composite membranes were prepared by sequential electroless plating technique. The prepared membranes were characterized by X-ray diffraction （XRD）, scanning electron microscopy （SEM）, energy dispersive spectroscopy, and inductively coupled plasma atomic emission spectroscopy techniques （ICP-AES）. Effects of annealing time, Ag content, and air treatment on the hydrogen permeation flux and morphology of the alloys were investigated. The results of the investigation showed that the prepared type of tube had a good potential as substrate for membrane preparation. In addition, a uniform defect-free alloy was prepared by annealing at 550 ℃ in h2 atmosphere. The permeation results showed an increase in h2 permeation flux by increasing the Ag content and the annealing time. In addition, the air treatment of the prepared membranes at 400 ℃ for 1 h changed the morphology of the alloy and substantially enhanced the hydrogen flux.

关键词： Pd/Ag composite membrane electroless plating thermal treatment

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Comparison of accuracy and computational performance between the machine learning algorithms for rate of penetration in directional drilling well

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Petroleum Research 2021年第3期6卷 271-282页

作者： Omid hazbeh Saeed Khezerloo-ye Aghdam hamzeh Ghorbani Nima Mohamadian Mehdi Ahmadi alvar Jamshid Moghadasi Faculty of Earth Sciences Shahid Chamran UniversityAhwazIran Department of Petroleum Engineering Amirkabir University of TechnologyTehranIran Young Researchers and Elite Club Ahvaz BranchIslamic Azad UniversityAhvazIran Young Researchers and Elite Club Omidiyeh BranchIslamic Azad UniversityOmidiyehIran Faculty of Engineering Department of Computer EngineeringShahid Chamran UniversityAhwazIran Petroleum Engineering Department Petroleum Industry UniversityAhvazIran

Oil and gas reservoirs are of the main assets of countries possessing *** from these reservoirs is one of the main concerns of engineers,which can be achieved by drilling oil and gas *** of hydrocarbon wells is one of the most expensive operations in the oil *** of the most important parameters affecting drilling cost is the rate of penetration(ROP).This paper predicts the rate of penetration using artificial intelligence and hybrid models on Kaboud oil field well#7 in the directional *** this study,different models were constructed through various approaches based on 1878 dataset obtained from drilling operation in the well#***,the accuracy of the constructed models was compared with each *** was found that the MLP-ABC algorithm predicts the rate of penetration more accurately,by far,as compared with other *** MLP-ABC algorithm achieves impressive ROP prediction accuracy(RMSE=0.007211 m/h;AAPD=0.1871%;R^(2)=1.000 for the testing subset).Consequently,it can be concluded that this method is applicable to predict the drilling rate in that oilfield.

关键词： Rate of penetration Artificial intelligence Directional drilling MLP Prediction

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The Norwegian CCS Research Centre(NCCS):facilitating industry-driven innovation for fast-track CCS deployment

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Clean Energy 2020年第2期4卷 158-168页

作者： Amy Brunsvold Grethe Tangen Sigmund O.Storset James Dawson alvar Braathen Anne Steenstrup-Duch Rune Aarlien Mona J.Molnvik SINTEF Energy Research Postboks 4761 Sluppen7465 TrondheimNorway SINTEF Industry Box 4760 Torgarden7465 TrondheimNorway Department of Energy and Process Engineering Norwegian University of Science and TechnologyKolbjorn v 1B7491 TrondheimNorway Department of Geosciences University of OsloPO Box 1047Blindern0316OsloNorway

Introduction Centres of Excellence are long-term collaborative research entities that create synergism between the expertise of publicly funded research actors with strong industry *** centres are focused on strategic research of high relevance for the industry,while building the funda-mental knowledge and competence to push the scientific forefront-a truly collaborative effort-critical mass of re-searchers,students and industry.

关键词： funded industry CCS

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