1,720,981 research outputs found
Decarbonization of the Gas Processing and Chemical Plants: The Path for Technology Commercialization
No full textAbstract: Natural gas has emerged as a crucial clean fuel source to address escalating global energy demands, projected to increase by 40% by 2030 and 15-16% by 2050 compared to 2014 and 2023, respectively. Nevertheless, the sustainability of natural gas as a source of energy and chemicals depends mainly on our success in decarbonizing the industry. I will share examples of decarbonizing midstream and downstream sectors of the industry in my presentation while identifying CO2 utilization routes. Dry reforming of methane (DRM) offers an avenue for converting carbon dioxide (CO2) and methane (CH4)—the two major greenhouse gases—into syngas, a vital chemical precursor. However, DRM is constrained by high energy demands, catalyst deactivation, and an unfavorable H2/CO ratio. My research team developed a novel technology with a dual-reactor system that produces multi-walled carbon nanotubes (MWCNTs) and syngas as products. CARGEN® offers at least 65% CO2 conversion at 50% of the energy demands of DRM. Utilizing modeling and experimental studies, we scaled up CARGEN® from the milligram scale to the multi-gram scale and, ultimately, to the multi-kilogram scale of MWCNT production. Ultimately, the outcome of this study encourages CARGEN-based chemicals and refinery plants that co-produce syngas, hydrogen, and MWCNTs from CO2 and natural gas as an integrated decarbonization solution. The technology is currently moving toward the commercialization phase.
Another example is the direct synthesis of dimethyl carbonate (DMC), which is considered the most promising route from a green chemistry perspective. This route generates water as the only byproduct in the reaction between CO2 and methanol. My research team worked with Shell to scale up this technology and evaluate its potential for commercialization.
Finally, my research team developed two new quantitative parameters to evaluate the probability of CO2 fixation for decarbonization technologies. The greenhouse gas reduction, sustainability, and economics framework (GASEF) assess commercial viability by simultaneously analyzing a CCU technology’s CO2 fixation (CO2Fix) potential and its economic benefits.
Biography: Elbashir is the director of Texas A&M’s Engineering Experiment Station Gas & Fuels Research Center (GFRC), a major research center involving 30 faculty members from the College Station and Qatar campuses of Texas A&M University (http://gfrc.tamu.edu/). He is a professor of chemical engineering and serves on the Qatar and College Station campuses. He has extensive research and teaching experience from four countries worldwide, including his previous position as a researcher at BASF R&D Catalysts in Iselin, New Jersey. His research focuses on designing advanced reactors and catalysts for natural gas and CO2 conversion and decarbonization. He has established several unique global research collaboration models between academia and industry, with research funds exceeding seventeen million dollars. He holds several U.S., European, and international patents and many scientific publications. The scholarship of his research activities has been recognized by awards from BASF Corp., Texas A&M University & TEES, the American Institute of Chemical Engineers, Shell, ORYX GTL Co., the Qatar Foundation, and others. Elbashir was elected as a Fellow of the AIChE in August 2023, a member of the Sudan National Academy of Sciences (SNAS) in 2022, and its general secretary in February 2024.Illinois Sustainable Technology Cente
A Systemic Approach To Understand Relationship Between Compositions Of Gtl Derived Synthetic Fuels And Their Properties
No full textCharacterization of Synthetic Gas-to-Liquid Jet Fuel Blends and Properties Correlation with Hydrocarbon Groups
No full textExperimental and Statistical Studies for the Design of Novel Synthetic Jet Fuels Derived from Natural Gas
No full textSimulation Of The Fischer-Tropsch Fixed Bed Reactor For The Design Of Novel Gtl Process In Non-Conventional Reaction Media
No full textDesign of Novel Gas-to-Liquid Reactor Technology Utilizing Fundamental and Applied Research Approaches
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Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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