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Probabilistic commodity price projections for unbiased techno-economic analyses (2023)
Journal Article
Rodgers, S., Bowler, A., Meng, F., Poulston, S., McKechnie, J., & Conradie, A. (2023). Probabilistic commodity price projections for unbiased techno-economic analyses. Engineering Applications of Artificial Intelligence, 122, Article 106065. https://doi.org/10.1016/j.engappai.2023.106065

Techno-economic analysis is a core methodology for assessing the feasibility of new technologies and processes. The outcome of an analysis is largely dictated by the product's price, as selected by the practitioner. Representative future price distri... Read More about Probabilistic commodity price projections for unbiased techno-economic analyses.

Raising the Research Octane Number using an optimized Simulated Moving Bed technology towards greater sustainability and economic return (2022)
Journal Article
Muhammed, T., Tokay, B., & Conradie, A. (2023). Raising the Research Octane Number using an optimized Simulated Moving Bed technology towards greater sustainability and economic return. Fuel, Article 126864. https://doi.org/10.1016/j.fuel.2022.126864

The scale of CO2 emissions from light-duty vehicle (LDV) fleets worldwide has led governments to mandate substantive improvements in vehicle fuel economy, thereby mitigating climate change. Raising the Research Octane Number (RON) of fuel through iso... Read More about Raising the Research Octane Number using an optimized Simulated Moving Bed technology towards greater sustainability and economic return.

The integration of low temperature supercritical water gasification with continuous in situ nano-catalyst synthesis for hydrogen generation from biomass wastewater (2022)
Journal Article
Siah Lee, C., Conradie, A. V., & Lester, E. (2023). The integration of low temperature supercritical water gasification with continuous in situ nano-catalyst synthesis for hydrogen generation from biomass wastewater. Chemical Engineering Journal, 455, https://doi.org/10.1016/j.cej.2022.140845

A continuous hydrothermal process is demonstrated, for the first time, that can operate at low gasification temperature (430 °C) and residence time (20 s) by combining supercritical water gasification (SCWG) and partial oxidation with in situ synthes... Read More about The integration of low temperature supercritical water gasification with continuous in situ nano-catalyst synthesis for hydrogen generation from biomass wastewater.

Renewable butadiene: A case for hybrid processing via bio- and chemo-catalysis (2022)
Journal Article
Rodgers, S., Meng, F., Poulston, S., Conradie, A., & McKechnie, J. (2022). Renewable butadiene: A case for hybrid processing via bio- and chemo-catalysis. Journal of Cleaner Production, 364, Article 132614. https://doi.org/10.1016/j.jclepro.2022.132614

1,3-butadiene (butadiene) is a by-product produced during naphtha steam cracking, predominantly used in tyre manufacturing. Recently, steam crackers have converted to using more cost effective, lighter feedstocks such as shale gas, yielding less buta... Read More about Renewable butadiene: A case for hybrid processing via bio- and chemo-catalysis.

Engineering improved ethylene production: Leveraging systems Biology and adaptive laboratory evolution (2021)
Journal Article
Vaud, S., Pearcy, N., Hanževački, M., Van Hagen, A. M., Abdelrazig, S., Safo, L., …Bryan, S. J. (2021). Engineering improved ethylene production: Leveraging systems Biology and adaptive laboratory evolution. Metabolic Engineering, 67, 308-320. https://doi.org/10.1016/j.ymben.2021.07.001

Ethylene is a small hydrocarbon gas widely used in the chemical industry. Annual worldwide production currently exceeds 150 million tons, producing considerable amounts of CO2 contributing to climate change. The need for a sustainable alternative is... Read More about Engineering improved ethylene production: Leveraging systems Biology and adaptive laboratory evolution.

Reconciling the sustainable manufacturing of commodity chemicals with feasible technoeconomic outcomes: Assessing the investment case for heat integrated aerobic gas fermentation (2021)
Journal Article
Rodgers, S., Conradie, A., King, R., Poulston, S., Hayes, M., Bommareddy, R. R., …McKechnie, J. (2021). Reconciling the sustainable manufacturing of commodity chemicals with feasible technoeconomic outcomes: Assessing the investment case for heat integrated aerobic gas fermentation. Johnson Matthey Technology Review, 65(3), 375–394. https://doi.org/10.1595/205651321X16137377305390

The manufacturing industry must diverge from a ‘take, make and waste’ linear production paradigm towards more circular economies. Truly sustainable, circular economies are intrinsically tied to renewable resource flows, where vast quantities need to... Read More about Reconciling the sustainable manufacturing of commodity chemicals with feasible technoeconomic outcomes: Assessing the investment case for heat integrated aerobic gas fermentation.

Review of supercritical water gasification with lignocellulosic real biomass as the feedstocks: Process parameters, biomass composition, catalyst development, reactor design and its challenges (2021)
Journal Article
Lee, C. S., Conradie, A. V., & Lester, E. (2021). Review of supercritical water gasification with lignocellulosic real biomass as the feedstocks: Process parameters, biomass composition, catalyst development, reactor design and its challenges. Chemical Engineering Journal, 415, Article 128837. https://doi.org/10.1016/j.cej.2021.128837

Supercritical water gasification (SCWG) is a combined thermal decomposition and hydrolysis process for converting wet biomass feedstock with high water content potentially (80 wt%) to syngas. The process bypasses the need for an energy intensive pre-... Read More about Review of supercritical water gasification with lignocellulosic real biomass as the feedstocks: Process parameters, biomass composition, catalyst development, reactor design and its challenges.

A Sustainable Chemicals Manufacturing Paradigm Using CO2 and Renewable H2 (2020)
Journal Article
Bommareddy, R. R., Wang, Y., Pearcy, N., Hayes, M., Lester, E., Minton, N. P., & Conradie, A. V. (2020). A Sustainable Chemicals Manufacturing Paradigm Using CO2 and Renewable H2. iScience, 23(6), https://doi.org/10.1016/j.isci.2020.101218

© 2020 The Author(s) The chemical industry must decarbonize to align with UN Sustainable Development Goals. A shift toward circular economies makes CO2 an attractive feedstock for producing chemicals, provided renewable H2 is available through techno... Read More about A Sustainable Chemicals Manufacturing Paradigm Using CO2 and Renewable H2.

Nanorg Microbial Factories: Light-Driven Renewable Biochemical Synthesis Using Quantum Dot-Bacteria Nanobiohybrids (2019)
Journal Article
Ding, Y., Bertram, J. R., Eckert, C., Bommareddy, R. R., Patel, R., Conradie, A., …Nagpal, P. (2019). Nanorg Microbial Factories: Light-Driven Renewable Biochemical Synthesis Using Quantum Dot-Bacteria Nanobiohybrids. Journal of the American Chemical Society, 141(26), 10272-10282. https://doi.org/10.1021/jacs.9b02549

Living cells do not interface naturally with nanoscale materials, although such artificial organisms can have unprecedented multifunctional properties, like wireless activation of enzyme function using electromagnetic stimuli. Realizing such interfac... Read More about Nanorg Microbial Factories: Light-Driven Renewable Biochemical Synthesis Using Quantum Dot-Bacteria Nanobiohybrids.