There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.

Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

I and i

THE DESIGN AND ANALYSIS OF EXPERIMENTS. By Oscar Kempthorne. New York, John Wiley and Sons, Inc., 1952. 631 pp. $8.50. This book by a teacher of statistics (as well as a consultant for \"experimenters\") is a comprehensive study of the philosophical background for the statistical design of experiment. It is necessary to have some facility with algebraic notation and manipulation to be able to use the volume intelligently. The problems are presented from the theoretical point of view, without such practical examples as would be helpful for those not acquainted with mathematics. The mathematical justification for the techniques is given. As a somewhat advanced treatment of the design and analysis of experiments, this volume will be interesting and helpful for many who approach statistics theoretically as well as practically. With emphasis on the \"why,\" and with description given broadly, the author relates the subject matter to the general theory of statistics and to the general problem of experimental inference. MARGARET J. ROBERTSON

The Design and Analysis of Experiments

CO2 conversion covers a wide range of possible application areas from fuels to bulk and commodity chemicals and even to specialty products with biological activity such as pharmaceuticals. In the present review, we discuss selected examples in these areas in a combined analysis of the state-of-the-art of synthetic methodologies and processes with their life cycle assessment. Thereby, we attempted to assess the potential to reduce the environmental footprint in these application fields relative to the current petrochemical value chain. This analysis and discussion differs significantly from a viewpoint on CO2 utilization as a measure for global CO2 mitigation. Whereas the latter focuses on reducing the end-of-pipe problem “CO2 emissions” from todays’ industries, the approach taken here tries to identify opportunities by exploiting a novel feedstock that avoids the utilization of fossil resource in transition toward more sustainable future production. Thus, the motivation to develop CO2-based chemistry does...

Sustainable Conversion of Carbon Dioxide: An Integrated Review of Catalysis and Life Cycle Assessment

Despite being first demonstrated over 160 years ago, and offering significant environmental benefits and high electrical efficiency, it is only in the last two decades that fuel cells have offered a realistic prospect of being commercially viable. The solid oxide fuel cell (SOFC) offers great promise and is presently the subject of intense research activity. Unlike other fuel cells the SOFC is a solid-state device which operates at elevated temperatures. This review discusses the particular issues facing the development of a high temperature solid-state fuel cell and the inorganic materials currently used and under investigation for such cells, together with the problems associated with operating SOFCs on practical hydrocarbon fuels.

/pdf/solid-oxide-fuel-cells-2vfiwiriu1.pdf

Solid oxide fuel cells

A study is conducted to demonstrate catalytic dehydrogenation of light alkanes on metals and metal oxides. The study provides a complete overview of the materials used to catalyze this reaction, as dehydrogenation for the production of light olefins has become extremely relevant. Relevant factors, such as the specific nature of the active sites, as well as the effect of support, promoters, and reaction feed on catalyst performance and lifetime, are discussed for each catalytic Material. The study compares different catalysts in terms of the reaction mechanism and deactivation pathways and catalytic performance. The duration of the dehydrogenation step depends on the heat content of the catalyst bed, which decreases rapidly due to the endothermic nature of the reaction. Part of the heat required for the reaction is introduced to the reactors by preheating the reaction feed, additional heat being provided by adjacent reactors that are regenerating the coked catalysts.

Catalytic dehydrogenation of light alkanes on metals and metal oxides.

High temperature H2S removal via CO2-assisted chemical looping over ZrO2-modified Fe2O3

TAP analysis of single and double peak responses during CO oxidation over Pt

Introduction The role of the support in syngas production from methane has been widely investigated for various reforming technologies, like steam reforming (MSR), dry reforming (DRM), partial oxidation of methane (POM) and autothermal reforming (ARM) [1]. Inert supports, e.g. SiO2, although ensuring active metal dispersion, will result in quick deactivation due to carbon deposition, since both CH4 and CO2 are activated on the same active site (mono-functional mechanism) [2-4]. A bi-functional mechanism exist on acidic/basic supports (Al2O3, La2O3, MgO etc.), where CH4 is activated on active metals and CO2 on the support, thus enhancing the oxidation of deposited carbon [5-7].

https://biblio.ugent.be/publication/8523999/file/8524477.pdf

Novel Fe-promoted MgAl2O4 support material for control of carbon deposition during reforming reactions

Co2-Assisted Propane Dehydrogenation Over Pt: Comparing Promoters Part 1: Detailed Characterization by in Situ Qxas with Modulation Excitation Analysis

Vladimir Galvita

Papers

High temperature H2S removal via CO2-assisted chemical looping over ZrO2-modified Fe2O3

TAP analysis of single and double peak responses during CO oxidation over Pt

Novel Fe-promoted MgAl2O4 support material for control of carbon deposition during reforming reactions

Co2-Assisted Propane Dehydrogenation Over Pt: Comparing Promoters Part 1: Detailed Characterization by in Situ Qxas with Modulation Excitation Analysis

Co2-Assisted Propane Dehydrogenation Over Pt: Comparing Promoterspart 2: Comprehensive Performance Evaluation