theoretical basis of catalytic cracking
PetroleumThermal and catalytic processes in petroleum refining 2003
... CATALYSTS Theoretical Basis of Catalytic Cracking 6.1 Process Thermodynamics 6.2 Cracking Catalysts 6.3 Reaction Mechanisms 6.4 Kinetics of Catalytic Cracking 6.5 Effect of Process Conditions ... Kinetics of Hydrocracking 12.5 Effect of Process Parameters 12.6 Commercial Hydrocracking of Distillates 12.7 Residue Hydrocracking 12.8 Processes Using Slurry Phase Reactors 12.9 Production of High ... viscosity, by means of Figure 1.2 [3] The heat of combustion of coke is determined experimentally or less precisely on the basis of the elementary composition The heats of combustion of gaseous components...
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Sulfonic acid catalysts based on porous carbons and polymers
... capacity of 1.4 mmol of H+ per gram The catalytic performance of this material was first investigated in the esterification of acetic acid with ethanol and shows higher activity for formation of ethyl ... reaction of thiol groups, and in some cases, leaching of sulfur species is clearly evidenced The presence of un-oxidized sulfur species might have a negative effect on the catalytic performance of ... synthesized using mixtures of cationic and neutral surfactants, exhibited an acid conversion of 90% with selectivity to the monoester of 75% after 24 h of the esterification of glycerol with lauric...
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The European Environmental Bureau (EEB) The European Federation for Transport and Environment (T&E) Seas At Risk (SAR) The Swedish NGO Secretariat on Acid Rain pot
... oxides, and ozone, accelerate the rate of deterioration of a large number of various materials Buildings and monuments made of limestone and some kinds of sandstone are especially sensitive to ... burning of marine heavy fuel oil gives rise to high emissions of polycyclic aromatic hydrocarbons (PAH) (Ahlbom & Duus, 2003) Because of its high content of polycyclic aromatics, this type of fuel ... Brussels, Belgium CEC (2001a) Directive 2002/80/EC of the European Parliament and of the Council of 23 October 2001 on the limitation of emissions of certain air pollutants into the air from large...
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Báo cáo hóa học: " Impacts of Post-metallisation Processes on the Electrical and Photovoltaic Properties of Si Quantum Dot Solar Cells" potx
... small as Rsh of the cell is in the order of MX.cm2 The short circuit current increases by a factor of three due to the decrease of Rs Contact and Sheet Resistances To identify the origin of the large ... reduction of series resistance is largely due to the reduction of the material’s resistivity The implication of the results is that the H2 in the forming gas is responsible for the improvement of the ... Factor (n) Special attention has been paid to the analysis of the series resistance (Rs) of the cell Instead of simply calculating the slope of the dark I–V curve at the high voltage region, Rs is...
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Methanol oxidation on moo3tio2 catalysts
... area of the support and to a smaller extent on the modification of titania On the other hand the catalytic behavior of all the catalysts was similar for a coverage of MoO3 higher than a theoretical ... values The type of polymorphic modification of titania of low specific surface area also affects, though to a smaller extent, the activity of the dispersed molybdena phase The total rate of methanol ... rate of propene formation (a measure of the concentration of acidic centers) on the different samples and the overall rate of methanol oxidation According to Louis et al [ 19 ] the formation of...
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Báo cáo khoa học: "Regional scale effects of base cation fertilization on Norway spruce and European beech stands situated on acid brown soils: soil and foliar chemistry" pdf
... downward migration of base cations and alkalinity through the soil profiles in the short term can be attributed to the kinetics of dissolution of the amendments and to the formation of exchangeable ... literature concerning the effects of Regional effects of base cation fertilization 709 Table VIII Means (% of dry matter) and coefficient of variation (CV%) of the nutrient foliar concentrations ... increase of exchangeable Ca in the soil This suggests a risk of induced-K deficiency following liming in case of low initial K concentrations in the soil [2, 4, 10, 33] The simultaneous application of...
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Báo cáo lâm nghiệp: " Radial growth of mature pedunculate and sessile oaks in response to drainage, fertilization and weeding on acid pseudogley soils" ppt
... May in the form of 112 kg.ha of ’superphosphate triple’, containing -1 50 kg of P 690 kg.ha of ’scories Thomas’, -1 ; O containing 110 kg of P and 345 kg of CaO; O and 400 kg.ha of ’patenkali’, ... growth response of trees to various interventions which were intended to improve each of these factors, that is, draining of the seasonal excess of water through ditching, supply of mineral fertilizers ... time of the natural regeneration of the trees, which is always sparse and uncertain The very forest status of the land is even often at stake: the understorey is invaded by a dense cover of few...
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Báo cáo y học: " Role of taurine on acid secretion in the rat stomach" ppsx
... taurine potently Huang et al Journal of Biomedical Science 2011, 18:11 http://www.jbiomedsci.com/content/18/1/11 Page of 10 Figure Effect of various doses of taurine-induced acid secretion in ... curve of taurine-induced acid secretion (B) Correlation between various doses of taurine and acid secretion Values are the mean ± SEM (n = 6) increases the level of cAMP Fourth, the presence of ... plexus of the enteric nervous system in the stomach Taurinergic neurons in the muscle layer of the gastrointestinal (GI) tract might be involved in motility of the GI tract and the function of endocrine...
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Báo cáo khoa học: "Clinical review: Influence of vasoactive and other therapies on intestinal and hepatic circulations in patients with septic shock" ppsx
... ‘motor’ of MOF Arch Surg 1986, 121:196-208 Dantzker DR: The gastrointestinal tract The canary of the body? JAMA 1993, 270:1247-1248 Lautt WW: Mechanism and role of intrinsic regulation of hepatic ... comparing the effects of epinephrine with a combination of a fixed dose of dobutamine in addition to norepinephrine Dopamine alone or versus norepinephrine (Table 1) The infusion of low-dose dopamine ... number of patients included in these studies, no definite conclusions can be drawn regarding the effects of dopamine on splanchnic blood flow in septic patients Comparison of the effects of norepinephrine...
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Isomerization of alpha pinene oxide over solid acid catalysts
... IV 79 85 Catalytic Studies 4.1 α-Pinene Oxide Isomerization Reaction 87 4.1.1 Catalytic Activity of HY Zeolite 87 4.1.2 Catalytic Activity of MSU-S Materials 90 4.1.3 Catalytic Activity of Metal ... National University of Singapore for awarding me a valuable research scholarship i TABLE OF CONTENTS PAGE Acknowledgement i Table of Contents ii Summary v List of Tables vii List of Figures ix Chapter ... Boron Oxide 100 4.1.4 Catalytic Activity of InCl3-Supported on ZrO2 107 4.1.5 Catalytic Activity of ZrO2-Supported SiO2 Catalysts 110 4.2 Liquid-Phase Beckmann Rearrangement of Cyclohexanone Oxime...
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RESEARCH ON THE CHANGE OF 2-AP AND OTHER VOLATILE COMPOUNDS IN PROCESSING BUN FROM RICE
... on 20g of brown rice with dichloromethane as solvent and collidine as internal standard Duration of extraction was 30 minutes from apparition of the first drop of water in the bottom of the condensed ... Quantification of 2-AP in pandan leaf: Fig System of the SPME extraction 732 Content of - AP in pandan leaf extracted by SDE was calculated as follows: Research on the Change of 2-AP and Other ... Extraction of volatile fractions in rice was performed by using a Supelco® VB/Carboxen/PDMS (divinylbenzène/ Carboxen/ polydiméthylsiloxane) fiber 3.5 g of milled rice with 500 µl of water were...
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INFLUENCE DISTRIBUTIONS OF ACID DEPOSITION IN MOUNTAINOUS STREAMS ON A TALL CONE-SHAPED ISLAND, YAKUSHIMA
... Journal of Water and Environment Technology, Vol.3, No.2, 2005 groundwater runoff in streams, is important in term of the critical load of acid deposition to a catchment Figure Catchment of the ... concentrations of anions in the western streams The height of catchment boundaries, the direction of the main axis of a catchment and the prevailing wind govern the influence of acid deposition ... mostly similar to those in other parts of island The values of pH were lower in the southwestern streams The values of alkalinity and the concentrations of Ca2+ and Mg2+ were lower in the southern...
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Effect of unsaturated fatty acid esters of biodiesel fuels on combustion, performance and emission characteristics of a DI diesel engine
... Journal of Energy and Environment (IJEE), Volume 1, Issue 3, 2010, pp.411-430 421 % of Premixed combustion % of Diffusion combustion Trend line of % of diffusion combustion Trend line of % of premixed ... volume, JT 50:50 = Blend of 50 % of jatropha oil methyl ester and 50 % of tallow oil methyl ester by volume, SFCt 50:50 = Blend of 50 % of sunflower oil methyl ester and 50 % of coconut oil methyl ... Where, JT 80:20 = Blend of 80 % of jatropha oil methyl ester and 20 % of tallow oil methyl ester by volume, JP 50:50 = Blend of 50 % of jatropha oil methyl ester and 50 % of palm oil methyl ester...
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Effects of time of heatsetting on the tensile properties of ingeo™ poly (lactic acid) (PLA) fabric
... Figure Effect of time of heatsetting on the linearity of load extension in weft direction of knitted Ingeo™ Poly (lactic acid) Figure Mean effect of time of heatsetting on the linearity of load extension ... [PLA] Figure Mean [Ā] of effect of time of heatsetting on the tensile extension EM [%] of Ingeo™ Poly (lactic acid) 3.2 Linearity of load extension curve LT [-] The linearity of load extension curve ... International Journal of Energy and Environment (IJEE), Volume 4, Issue 5, 2013, pp.797-806 801 Figure Effect of time of heatsetting on the linearity of load extension in warp direction of knitted Ingeo™...
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Reporting on Other Data Sources.
... gathered from large databases For the benefit of readers who have no knowledge of this software, Access is a relational database management system from Microsoft It was a stand-alone product in the ... talk about getting rid of rows Because of the Insert Group action, a group header and footer are part of the table now Look at Figure 10-8; we need to copy the content of the row labeled “a” ... help of data grouping in the ProductName column You’ll also notice that the column headers are repeated with every new letter of the alphabet So, now is the time to test the versatility of the...
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Tài liệu To establish an Office on Women’s Health within the Department of Health and Human Services, and for other purposes pdf
... 928 OFFICE OF WOMEN’S HEALTH ‘‘(a) ESTABLISHMENT.—There is established within the Office of the Director of the Agency for Healthcare Research and Quality an office to be known as the Office of ... 14 the Office of the Commissioner of the Food and Drug Ad15 ministration an office to be known as the Office of Wom16 en’s Health (referred to in this section as the ‘Office’) 17 The Office shall ... ‘‘(a) ESTABLISHMENT OF OFFICE.—There is estab- lished within the Office of the Secretary an Office on 10 Women’s Health (referred to in this section as the Of1 1 fice’) The Office on Women’s Health...
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Tài liệu The Internal Revenue Service Is Not Adequately Protecting Taxpayer Data on Laptop Computers and Other Portable Electronic Media Devices docx
... subject-matter experts from across the IRS (e.g., the Office of Disclosure, the Office of Chief Counsel, the Office of Labor Relations, the CSIRC, and the Office of Privacy and Information Protection) Physical ... the TIGTA Office of Investigations but not to the CSIRC In addition, employees reported 91 of the incidents to the CSIRC; however, 49 of these were not reported to the TIGTA Office of Investigations ... promptly notify the TIGTA Office of Investigations As a final measure to ensure total coordination, the IRS is in the process of entering into an agreement with the TIGTA Office of Investigations to...
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Tìm thêm: xác định các mục tiêu của chương trình khảo sát chương trình đào tạo gắn với các giáo trình cụ thể xác định thời lượng học về mặt lí thuyết và thực tế tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam điều tra đối với đối tượng giảng viên và đối tượng quản lí điều tra với đối tượng sinh viên học tiếng nhật không chuyên ngữ1 khảo sát các chương trình đào tạo theo những bộ giáo trình tiêu biểu nội dung cụ thể cho từng kĩ năng ở từng cấp độ xác định mức độ đáp ứng về văn hoá và chuyên môn trong ct mở máy động cơ lồng sóc mở máy động cơ rôto dây quấn các đặc tính của động cơ điện không đồng bộ hệ số công suất cosp fi p2 đặc tuyến mômen quay m fi p2 đặc tuyến dòng điện stato i1 fi p2 sự cần thiết phải đầu tư xây dựng nhà máy thông tin liên lạc và các dịch vụ từ bảng 3 1 ta thấy ngoài hai thành phần chủ yếu và chiếm tỷ lệ cao nhất là tinh bột và cacbonhydrat trong hạt gạo tẻ còn chứa đường cellulose hemicellulose chỉ tiêu chất lượng theo chất lượng phẩm chất sản phẩm khô từ gạo của bộ y tế năm 2008 chỉ tiêu chất lượng 9 tr 25