Article
Engineering, Chemical
Swarnalatha Mailaram, Vivek Narisetty, Vivek V. Ranade, Vinod Kumar, Sunil K. Maity
Summary: This study presents a techno-economic feasibility study for microbial BDO production from brewers' spent grain, and suggests a feasible method both technically and economically. The application of pinch technology can reduce energy consumption and with the increase in BDO titer, the production cost is also reduced marginally.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Nicolas Campion, Hossein Nami, Philip R. Swisher, Peter Vang Hendriksen, Marie Munster
Summary: This paper develops a fast-solving open-source model for dynamic power-to-X plant techno-economic analysis and investigates the bias in using other state-of-the-art power-to-X cost calculation methods. The model optimizes investments and operation-costs based on techno-economic data, power profiles, and grid prices. The study focuses on ammonia fuel synthesized from electrolytic hydrogen produced by photovoltaics, wind turbines, or the grid. Comparisons are made using different weather profiles and electrolyser technologies. The results show that a semi-islanded set-up is the most cost-effective option, reducing costs by up to 23% compared to off-grid systems.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Chemistry, Physical
Arne Burdack, Luis Duarte-Herrera, Gabriel Lopez-Jimenez, Thomas Polklas, Oscar Vasco-Echeverri
Summary: In this paper, the techno-economic hydrogen production and transportation costs from Colombia to Europe and Asia were determined using open-source Python tools. The potential of Colombia to produce green hydrogen using renewable energies was highlighted, with estimated prices ranging from 1.5 to 3.24 USD/kgH2 depending on the energy source and year. Colombia has the potential to become a promising hydrogen supplier to Asian and European countries with competitive prices in production and transportation of green hydrogen.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Green & Sustainable Science & Technology
Hong Tian, Yuxiang Ma, Hua Cheng, Xiaofeng Zhang, Lei Liu, Yang Yang
Summary: Biorefining using Miscanthus as feedstock for chemical material production is a sustainable approach. This study investigates the profitability of different biochar applications using Miscanthus, and finds that the heat supply scenario is the most profitable.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Multidisciplinary
Simon Pratschner, Frank Radosits, Amela Ajanovic, Franz Winter
Summary: Power-to-Liquid plants are important for future energy systems and require economic evaluations to assess their competitiveness. A techno-economic assessment was performed on a green methanol plant concept, considering different scenarios. The study found that green methanol prices, CO2 prices, and hybrid power plant design are crucial factors for economic performance. The concept offers a solution to the major drawbacks of Power-to-Liquid plants and establishes stable long-term scenarios for interested investors.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Energy & Fuels
Qusay Hassan, Imad Saeed Abdulrahman, Hayder M. M. Salman, Olushola Tomilayo Olapade, Marek Jaszczur
Summary: This study analyzes an off-grid photovoltaic energy system designed to produce hydrogen using a proton-exchange membrane water electrolyzer. The results indicate that the system's annual energy generation is 18,892 kWh at 4313 operating hours, and the hydrogen production cost ranges from USD 5.39/kg to USD 3.23/kg. The optimal electrolyzer capacity is 8 kW, producing 37.5 kg/year/kW(p) of hydrogen for USD 3.23/kg.
Article
Chemistry, Multidisciplinary
Stefano Sollai, Andrea Porcu, Vittorio Tola, Francesca Ferrara, Alberto Pettinau
Summary: This paper presents a pre-feasibility study on a power-to-fuel plant configuration for the production of renewable methanol. The study utilizes green hydrogen and captured carbon dioxide as raw materials. A comprehensive process model is developed to simulate the plant sections and the overall system. The economic analysis indicates that the technology is currently not competitive, but expected to become competitive in the future with the implementation of new European policies.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Chemistry, Multidisciplinary
Siddharth Gadkari, Vivek Narisetty, Sunil K. Maity, Haresh Manyar, Kaustubha Mohanty, Rajesh Banu Jeyakumar, Kamal Kishore Pant, Vinod Kumar
Summary: This study presents the techno-economic and profitability analysis for fermentative production of 2,3-butanediol (BDO) using sugarcane bagasse. Different scenarios were considered, and the net unit production cost and minimum selling price of BDO were analyzed. It was found that utilizing the hemicellulose fraction of sugarcane bagasse alone could result in an economically viable plant, but only if it is annexed to a sugar mill that provides utilities and feedstock free of cost.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Energy & Fuels
Ana Maria Villarreal Vives, Ruiqi Wang, Sumit Roy, Andrew Smallbone
Summary: Producing clean energy and minimizing energy waste are crucial for achieving the United Nations sustainable development goals. This research analyzes the potential of waste heat recovery from multi-MW scale green hydrogen production. The results show that implementing waste heat recovery coupled with an organic Rankine cycle can significantly increase electrolysis efficiency and feasibility, depending on electricity prices.
Article
Green & Sustainable Science & Technology
Haeun Shin, Kentaro U. Hansen, Feng Jiao
Summary: This work provides a comprehensive techno-economic assessment of four major products of low-temperature CO2 electrolysis and prioritizes technological development with systematic guidelines to facilitate market deployment.
NATURE SUSTAINABILITY
(2021)
Article
Energy & Fuels
Joungho Park, Kyung Hwan Ryu, Chang-Hee Kim, Won Chul Cho, MinJoong Kim, Jae Hun Lee, Hyun-Seok Cho, Jay H. Lee
Summary: This study demonstrates the use of comprehensive system modeling to assess the economics of producing green hydrogen through water electrolysis using curtailed renewable energy of solar and wind. It presents a case study using actual meteorological data to estimate the capacity factor and LCOH of the system. The results show that the capacity factor depends on the design capacity, climate pattern, and the mix ratio between solar and wind energy.
Article
Chemistry, Physical
Michele Ongis, Gioele Di Marcoberardino, Giampaolo Manzolini, Fausto Gallucci, Marco Binotti
Summary: This research examines the performance of a fluidized-bed membrane reactor for hydrogen production. A techno-economic assessment was conducted on a plant with a capacity of 100 kgH2/day, evaluating the optimal design in terms of reactor size and operating pressures. The study compares hydrogen production from biogas and biomethane, finding that biomethane has higher efficiency but a higher cost compared to biogas.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Thermodynamics
Calin-Cristian Cormos
Summary: This study assesses the techno-economic and environmental implications of decarbonized green hydrogen generation using biomass gasification. The results indicate that green hydrogen production from decarbonized biomass gasification has promising potential, with high energy conversion efficiency, lower energy and cost penalties, and negative carbon emissions.
Article
Thermodynamics
Changgwon Choe, Boreum Lee, Hankwon Lim
Summary: Techno-economic and environmental assessments were conducted for green diesel production in this work. Through cost estimation, it was found that the current unit diesel production costs for green diesel are higher than conventional diesel, but uncertainty analysis and projected cost analysis were carried out to explore ways to enhance its attractiveness. In terms of environmental impact, using renewable energy sources for green diesel production can reduce CO2 emissions, with electrochemical green diesel production using onshore wind having the lowest CO2 emission among the scenarios covered.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Green & Sustainable Science & Technology
Muhammad Sadiq, Reem J. Alshehhi, Rahul Rajeevkumar Urs, Ahmad T. Mayyas
Summary: The International Energy Agency has established an agreement to promote the transition to green hydrogen in various sectors. Currently, the production of green hydrogen is limited due to lack of regulations, high costs, and inadequate infrastructure. This study investigates the potential and cost of large-scale hydrogen production, finding that costs decrease significantly with increased production volume. The location studied shows promise for scaled production and development of green hydrogen.
Article
Engineering, Chemical
Chunkai Shih, Jongwoo Park, David S. Sholl, Matthew J. Realff, Tomoyuki Yajima, Yoshiaki Kawajiri
CHEMICAL ENGINEERING SCIENCE
(2020)
Article
Biochemistry & Molecular Biology
Cameron W. Irvin, Chinmay C. Satam, Jianshan Liao, Paul S. Russo, Victor Breedveld, J. Carson Meredith, Meisha L. Shofner
Summary: The simultaneous incorporation of CNCs and ChNFs into a PVA matrix for tricomponent composite hydrogels shows potential for customization of environmentally friendly materials. The specific ratio of CNCs/ChNFs in these hydrogels demonstrates promising mechanical performance compared to other samples, suggesting improved properties by utilizing electrostatically driven nanofiber structures in nanocomposites.
Article
Engineering, Chemical
Trisha Sen, Yoshiaki Kawajiri, Matthew J. Realff
Summary: The study explores the material property space for effective kinetic adsorption separation and tests the predictive value of the ideal kinetic selectivity metric. Results show that steeper isotherms demonstrate better kinetic separation performance for similar diffusivities and equilibrium selectivities. Additionally, crystal size strongly impacts optimal performance, while the diffusivity ratio has a weaker than expected impact.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Augustus W. Lang, Yue Ji, Anna C. Dillon, Chinmay C. Satam, J. Carson Meredith, John R. Reynolds
Summary: Polymer-based electrochromic devices (ECDs) face limitations due to photo-oxidative bleaching of active materials, but renewable barrier films made of cellulose and chitin show promise as an alternative. Photodegradation of the active layer proceeded at a similar rate for all encapsulated devices, suggesting the potential of replacing petroleum packaging with bioderived barriers. Further analysis revealed that both photochemical breakdown of the electrolyte and cross-linking of the active material are key factors affecting device performance when oxygen flux is restricted. Future research is proposed to better understand photodegradation and improve sustainability in ECD design.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Engineering, Chemical
Stephen J. A. DeWitt, Rohan Awati, Hector Octavio Rubiera Landa, Jongwoo Park, Yoshiaki Kawajiri, David S. Sholl, Matthew J. Realff, Ryan P. Lively
Summary: This study focuses on understanding the opportunities and limitations of sub-ambient CO2 capture processes using a multistage separation process, proposing a hybrid process design involving pressure-driven separation and CO2-rich product liquefaction. Among the considered sorbents, zeolite 13X fiber composites were found to perform better at ambient temperatures compared to sub-ambient, while MIL-101(Cr) and UiO-66 fiber composites showed improved purity, recovery, and productivity at colder temperatures, reducing costs of capture to as low as $61/ton CO2.
Article
Energy & Fuels
Ryan P. Lively, Matthew J. Realff
Summary: The article discusses the necessity of global energy transition and various strategies including electrified fossil refineries, biorefineries, e-refineries, electric vehicles, and direct air capture systems. Through a thought experiment, it reveals that personal transportation electrification and coupling direct air capture with conventional refineries are relatively efficient and feasible energy transition pathways.
Article
Materials Science, Paper & Wood
Pradnya Rao, Chinmay Satam, Ashok Ghosh, Peter W. Hart
Summary: Starch-based materials are playing an important role in various barrier applications and have the potential to replace synthetic materials. Research shows that these materials have a wide range of applications, including antimicrobial and antiviral properties, for use in traditional and non-traditional barrier applications.
Article
Chemistry, Applied
Chinmay C. Satam, J. Carson Meredith
Summary: The study shows that deacetylation can enhance the performance of chitin nanofiber suspension and films, while reducing the energy utilization in the high pressure homogenization process. Oxygen permeability is not affected, and deacetylation can also lower the intensity requirements during extraction.
CARBOHYDRATE POLYMERS
(2021)
Article
Materials Science, Paper & Wood
Chinmay Satam, Ashok Ghosh, Peter W. Hart
Summary: Starch esters are considered ecofriendly barrier materials, but their water vapor barrier properties decrease with increasing humidity. Although high amylose starch acetates show improvements in water vapor barrier properties, they are still not suitable as standalone water vapor barrier materials.
Article
Nanoscience & Nanotechnology
Youn Ji Min, Arvind Ganesan, Matthew J. Realff, Christopher W. Jones
Summary: This study demonstrates new laminate-supported amine CO2 sorbents that can be used in gas-solid contactors. These sorbents show good reversible CO2 adsorption capacity under both dry and humid temperature swing cycles and have a low thermal energy requirement. They also exhibit stable adsorption capacity under conditions closer to larger-scale operations.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Polymer Science
Cameron Irvin, Chinmay C. Satam, Keya Shial, Prateek Verma, Nicole B. Arroyo, Carson Meredith, Meisha L. Shofner
Summary: Polymer nanocomposites are desirable materials for replacing biological structures due to their large design space for customization of properties. Biobased nanofibers, such as cellulose nanocrystals (CNCs) and chitin nanofibers (ChNFs), are suitable for these applications due to their high specific mechanical properties and cytocompatibility. This study explores nanocomposite aerogels and a hybrid structure mimicking an intervertebral disc, consisting of a CNC/PVA aerogel and a CNC/ChNF/PVA hydrogel, which demonstrate mechanical properties similar to natural discs and potential for customization through material composition and fraction variations in the hybrid structure.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Guanhe Rim, Pranjali Priyadarshini, MinGyu Song, Yuxiang Wang, Andrew Bai, Matthew J. Realff, Ryan P. Lively, Christopher W. Jones
Summary: The interaction between amine and solid support has a significant impact on CO2 adsorption behavior. Tetraethylenepentamine (TEPA) impregnated on different supports, gamma-Al2O3 and MIL-101(Cr), show different trends in CO2 sorption under varying temperature and humidity conditions. The mechanisms of CO2 sorption involve the formation of carbamic acid and carbamate species, and the extent of H2O adsorption is greatly influenced by the properties of the support materials.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Biochemical Research Methods
Prasaad T. Milner, Ziqiao Zhang, Zachary D. Herde, Namratha R. Vedire, Fumin Zhang, Matthew J. Realff, Corey J. Wilson
Summary: This study involves the development and experimental characterization of a large collection of network-capable single-INPUT logical operations. Using this data, the researchers were able to accurately predict the qualitative and quantitative performance of complex circuits, setting the stage for the predictive design of transcriptional programs of greater complexity.
ACS SYNTHETIC BIOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Hannah E. Holmes, Ryan P. Lively, Matthew J. Realff
Summary: This study defines the target properties of CO2 capture adsorbents that would ensure economic viability of bioenergy with carbon capture and storage (BECCS), emphasizing working capacity, lifetime, heat of adsorption, and exponential degradation decay constants. The research predicts that a BECCS process cost of $65/t-CO2 can be achieved with specific adsorbent properties, including cost, working capacity, heat of adsorption, and minimum lifetime.
Article
Nanoscience & Nanotechnology
Wenqin You, Trisha Sen, Yoshiaki Kawajiri, Matthew J. Realff, David S. Sholl
ACS APPLIED NANO MATERIALS
(2020)