In the breakage stage of extrusion-spheronisation, initially cylindrical extrudates undergo simultaneous breakage and rounding on a rotating friction plate. This sets the starting conditions (number of pellets, size and shape distributions) for the subsequent, lengthy, rounding stage. The simultaneous evolution of pellet size and shape during the i...
Copper-based catalysts enable the hydrogenation of CO2 to methanol (MeOH). Selective MeOH synthesis requires the interaction of copper with a metal oxide support to facilitate CO2 adsorption and hydrogenation. Here, we systematically appraise the role of ZnO, ZrO2 and CeO2 in Cu-based catalysts for low-pressure (1 bar) MeOH synthesis. During temper...
Long-term chemical storage of renewable energy in green ammonia has the potential to create a carbon-free energy market and replace fossil fuels. Cost estimations of green ammonia production are normally based on large-scale renewable energy installments with plentiful and consistent energy, which are well suited for the capital-intensive and flexi...
Amouzesh, SPKhodadadi, AAMortazavi, YSaris, SAsgari, M
This study aims to enhance the response and selectivity of zinc oxide (ZnO) gas sensors by its incorporating in MIL-100(Fe) as a support material. ZnO nanocomposites were synthesized by impregnating MIL-100 with varying weight percentages of zinc oxide (10% to 20%). The fabricated sensors underwent characterization through XRD, FTIR, DRS (UV-Vis), ...
Using sunlight to power CO2 conversion into value-added chemicals and fuels is a promising technology to use anthropogenic CO2 emissions for alleviating our dependence on fossil fuels. In this Primer, we provide a holistic step-by-step guide for the experimentation of photocatalytic CO2 reduction, including catalyst synthesis and characterization, ...
The paper examines pre-combustion carbon capture technology (PreCCS) for liquefied natural gas (LNG) propelled shipping from thermodynamics and energy efficiency perspectives. Various types of LNG reformers and CCS units are considered. The steam methane reformer (SMR) was found to be 20% more energy efficient than autothermal (ATR) and met...
Tran, DanPascazio, LauraAkroyd, JethroMosbach, SebastianKraft, Markus
Publication status: Published / In this study, we present a question answering (QA) system for chemistry, named Marie, with the use of a text-to-text pretrained language model to attain accurate data retrieval. The underlying data store is "The World Avatar" (TWA), a general world model consisting of a knowledge graph that evolves over time. TWA in...