The future of hydrogen: Challenges on production, storage and applications

Rasul, M.G.; Hazrat, M.A.; Sattar, M.A.; Jahirul, M.I.; Shearer, M.J.

doi:10.1016/j.enconman.2022.116326

Cited by 354 publications

(74 citation statements)

References 277 publications

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“…The larger scale production and use of bio-oils in asphalt pavement construction can be challenging because of their limited application and the lack of accurate technoeconomic analysis on industrial bio-oils. Bio-oil production needs energy for three steps: dewatering the wet biomass to dry biomass, heating dried biomass to the pyrolysis temperature, and decomposing the biomass during the reaction of pyrolysis . The costs associated with the energy needed to produce bio-oils result in an increase in the cost of bio-oil production.…”

Section: Challenges Gaps and Perspectivesmentioning

confidence: 99%

Future Directions for Applications of Bio-Oils in the Asphalt Industry: A Step to Sequester Carbon in Roadway Infrastructure

2023

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The global emphasis on sustainability and net zero carbon roads combined with the increased cost of crude oil has necessitated the application of new environmentally friendly alternatives to the bitumen used in asphalt by the pavement industry. Physical aging, chemical aging, and moisture damage are three important matters encountered in the pavement industry that are harmful for asphalt; bio-oils can decelerate the rates of physical aging and chemical aging in virgin bitumen, and bio-oils can substantially improve virgin bitumen’s resistance to moisture damage. Bio-oils can also restore properties in environmentally damaged asphalt up to a certain limit of aging. The main goal of this review is a comprehensive analysis of the literature about the potential of bio-oils produced from different biomass sources to influence the physical aging, chemical aging, and moisture damage of asphalt. Considering that bitumen’s physical aging is highly impacted by the bitumen’s wax content, this review also covers the effect of wax inherently present in bitumen or wax added to bitumen as a modifier. It is concluded that the chemical composition of a bio-oil has a significant impact on the bio-oil’s ability to protect or recover the bitumen’s original properties. Phenolic compounds found in bio-oils have antiaging effects while bio-oils’ acidic compounds may lead to moisture susceptibility.According to the literature, most bio-oils have positive effects only in a specific range of temperatures: low, intermediate, or high. Complete miscibility and dispersion of a bio-oil in the asphalt matrix also have a significant influence on making a bio-oil an effective modifier. Generally, bio-oils are promising as sustainable, carbon-neutral, cost-effective alternatives to replace or modify conventional bitumen in the pavement industry. This review has identified the following critical research gaps: (1) the lack of standard methods for evaluating and reporting the performance characteristics of each bio-oil in bitumen; (2) the lack of long-term field performance data on bio-oils to support comprehensive life-cycle assessments and life-cycle analyses; (3) high variation among bio-oils made from the same feedstock through different processing methods, leading to variation in performance characteristics; (4) the lack of accurate technoeconomic analysis on industrial bio-oils to facilitate entry of bio-oils into the asphalt market.

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Section: Challenges Gaps and Perspectivesmentioning

confidence: 99%

Future Directions for Applications of Bio-Oils in the Asphalt Industry: A Step to Sequester Carbon in Roadway Infrastructure

2023

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“…Biohydrogen is an emerging high-energydensity fuel that is clean and carbon-free. Biohydrogen is energy intensive with a calorific value of ∼120-140 MJ/kg; only water is generated from combustion [199]. Biogases can replace carbon fuels for residential and industrial activities, thus reducing carbon emissions [200].…”

Section: Acid Wheymentioning

confidence: 99%

Emerging Trends and Advancements in the Processing of Dairy Whey for Sustainable Biorefining

Goyal

Dhyani

Chandra

et al. 2023

Journal of Food Processing and Preservation

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Increased milk production has boosted the market of milk-driven products, and as a result, the by-product production has also increased, which is a challenge to dispose of. Whey, a cheese by-product, is also increasing yearly, and its disposal in water bodies is responsible for water pollution and thus is an issue for the dairy sector. In this context, extensive research has been going on to valorize this by-product and create alternative ways to remove the organic load in whey rather than disposing of it. Recently, exciting developments have been made to convert whey into value-added commodities such as biofuels (bioethanol, biodiesel, and biohydrogen), bioplastics, bacterial cellulose, food colors and flavors, bioprotective solutions, bioactive peptides, and single-cell proteins. In this review, we aim to comprehend the recent developments and challenges in producing a whole range of value-added ingredients with whey as feedstock through microbial fermentation. Particular focus was paid to the potential of novel genetically engineered or adapted microbial strains to valorize bovine whey economically and sustainably.

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“…As a clean and sustainable energy resource, hydrogen (H 2 ) has been hailed as a future fuel that holds great promise in replacing ever-being-exhausted fossil fuels and aiding the transition to net-zero emissions [ 4 , 5 ]. Hydrogen is the most abundant element in the universe and its combustion produces only water [ 6 , 7 , 8 ]. However, many obstacles need to be overcome to realize the so-called “hydrogen economy”.…”

Section: Introductionmentioning

confidence: 99%

Nanostructuring of Mg-Based Hydrogen Storage Materials: Recent Advances for Promoting Key Applications

Ren

Zhang

et al. 2023

Nano-Micro Lett.

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Highlights A comprehensive discussion of the recent advances in the nanostructure engineering of Mg-based hydrogen storage materials is presented. The fundamental theories of hydrogen storage in nanostructured Mg-based hydrogen storage materials and their practical applications are reviewed. The challenges and recommendations of current nanostructured hydrogen storage materials are pointed out.

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The future of hydrogen: Challenges on production, storage and applications

Cited by 354 publications

References 277 publications

Future Directions for Applications of Bio-Oils in the Asphalt Industry: A Step to Sequester Carbon in Roadway Infrastructure

Future Directions for Applications of Bio-Oils in the Asphalt Industry: A Step to Sequester Carbon in Roadway Infrastructure

Emerging Trends and Advancements in the Processing of Dairy Whey for Sustainable Biorefining

Nanostructuring of Mg-Based Hydrogen Storage Materials: Recent Advances for Promoting Key Applications

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