Papers – Page 4 – TechConnect Briefs

A Green & Clean Process for the Production of Methacrylic Acid and Methacrolein from Biofuel

Lin M.M., Grinberg J., Eng W., EverNu Technology, LLC, US

The modern consumption of fossil fuels for chemical production contributes to global warming and other nature disasters in recent years. Approximately 10% of U.S. crude oil imports are used to feed its chemical industry. There [...]

$/W Costs of Thermoelectric Waste-Heat Recovery for Stationary Applications

LeBlanc S., Yee S.K., Scullin M., George Washington University, US

Interest in thermoelectrics for waste-heat recovery has flourished in recent years, but questions about cost and scalability remain unanswered. Prior work investigated the materials, manufacturing, and system costs and thermal and electrical transport factors that [...]

STEP, Efficient solar syntheses: A comprehensive approach to decreasing the concentration of atmospheric carbon dioxide

Lau J., Licht S., Stuart J., Li F-F, Licht S., Meng F., George Washington University, US

The Solar Thermal Electrochemical Process (STEP) was introduced to provide a complete solution to lowering carbon dioxide in the atmosphere (1). STEP utilizes a synergy of thermal and electrochemical energy to drive endothermic processes at [...]

SUSTAINABLE steel production for the 2030s and beyond: the vision of the European Steel Technology Platform’s Strategic Research Agenda

Birat J.P., Malfa E., Colla V., Thomas J.S., ESTEP, BE

Steel is ubiquitous, even if it often remains invisible underneath decorative, protective or functional layers of other materials. This paper presents the European Steel Technology Platform (ESTEP) Strategic Research Agenda’s vision of how to manage [...]

Rheology of Portland cement pastes with calcined clays additions

Irassar-Viviana Rahhal E., Pedrajas C., Talero R., Universidad Nacional del Centro de la Provincia de Bs.As., AR

In this paper, the rheological behavior of pastes of Portland cement and different calcined clays additions were analyzed. For this purpose, two Portland cements with different mineralogical composition (low C3A and high C3S content and [...]

Utilization of ceramic wastes as pozzolanics materials

Irassar E., Rahhal V., Tironi A., Trezza M., Pavlík Z., Pavlíková M., Pavlíková M., Jerman M., Cerný R., Universidad Nacional del Centro de la Provincia de Bs.As., AR

The possible applicability of waste ceramic powder as partial portland cement replacement in concrete production is studied in this paper, due to rapid increase of concrete as building material. The cement industry alone is estimated [...]

Alumina extraction from fly ash by the MgO sintering method: Waste reduction and utilization

Zhao L., Sun Q., Wang B., Wang X., Wang B., Wang X., Xiao Y., Yu G., Liu X., Zhang Z., National Institute of Clean-and-low-carbon Energy (NICE), CN

In recent years, many methods for the alumina extraction from fly ash have been tested, developed and demonstrated in China. Generally, alkali sintering methods are more easily deployed than acid leaching methods, but it is [...]

Utilization of Industrial Waste as a Composite Cementing Materials

Khan M.I., King Saud University, SA

The deterioration in concrete structures exposed to harsh environments has become a matter of global concern. The requirement for high durability in concrete structures cannot be easily achieved using ordinary portland cement. Therefore, new materials [...]

Applications of Enzymatic Saccharification Residues as a Fully Biobased Adhesive

Hafez I.H., Yang H., Tze W.T.Y., University of Minnesota, US

When woody biomass is enzymatically treated to release from its polysaccharide components fermentable sugars for bio-alcohols and other chemicals production, it typically leaves behind in the waste stream solid residues that are rich in lignin. [...]

Rheological performance and NMR structure investigation of ultrasound crumb rubber modified bitumen

Filippelli L., Antunes F.E., Gentile L., Spadafora A., Ranieri G.A., Rossi C.O., University of Calabria, IT

Rubber from tyres is a waste material with a highly valuable constituents. the introduction of crumb rubber in the production of asphalt rubber (AR) mixes for road pavements should be considered as a sustainable technology [...]