Harnessing the potential of lignocellulosic substrates into sustainable energy and value added chemicals

Author(s):  
Anuj K Chandel ◽  
Om V Singh
2018 ◽  
Vol 9 (11) ◽  
pp. 2952-2960 ◽  
Author(s):  
Eva M. Nichols ◽  
Jeffrey S. Derrick ◽  
Sepand K. Nistanaki ◽  
Peter T. Smith ◽  
Christopher J. Chang

The development of catalysts for electrochemical reduction of carbon dioxide offers an attractive approach to transforming this greenhouse gas into value-added carbon products with sustainable energy input.


2020 ◽  
Vol 12 (24) ◽  
pp. 10410
Author(s):  
Katundu Imasiku ◽  
Valerie M. Thomas

The potential for mining companies to contribute to sustainable energy development is characterized in terms of opportunities for energy efficiency and support of electricity access in mining-intensive developing countries. Through a case study of the Central African Copperbelt countries of Zambia and the Democratic Republic of Congo, energy efficiency opportunities in copper operations and environmental impact of metal extraction are evaluated qualitatively, characterized, and quantified using principles of industrial ecology, life cycle assessment, and engineering economics. In these countries the mining sector is the greatest consumer of electricity, accounting for about 53.6% in the region. Energy efficiency improvements in the refinery processes is shown to have a factor of two improvement potential. Further, four strategies are identified by which the mining and technology industries can enhance sustainable electricity generation capacity: energy efficiency; use of solar and other renewable resources; share expertise from the mining and technology industries within the region; and take advantage of the abundant cobalt and other raw materials to initiate value-added manufacturing.


2014 ◽  
Vol 606 ◽  
pp. 223-226
Author(s):  
Farid Nasir Ani

Energy crisis and continuously fluctuating cost of petroleum have move attention of researchers toward renewable and sustainable energy sources and materials. Biomass or bioresources is one of the abundant and cheap renewable energy sources and materials that is environment friendly in Malaysia and other tropical countries in the world. It has been identified as one of the main sources of the sustainable energy in the fifth fuel strategy in Malaysia. This paper describes several possible routes to provide energy as well as potential value-added products from bioresources. The future trend in thermo-conversion processing of the biomass is the utilization of microwave energy into renewable bio-fuels, materials and chemicals. The potential of uses of bio-oils and bio-chars from oil palm solid wastes for biofuels, materials and chemicals are given. The applications of these renewable sources to produce biofuels, materials and chemicals have been applied in some countries around the world. The implementation of the biomass technology will be best utilized and feasible when the technology is developed locally, fabricated and commission with the utilization of locally produced biomass. With the research and development efforts developed locally towards local expertise will help to produce indigenous technologies, thus reducing the high cost of import technology.


2021 ◽  
Vol 3 ◽  
Author(s):  
Bokolo Anthony Jnr.

The digitalization of the power grid to smart grid provides value added services to the prosumers and other stakeholders involved in the energy market, and possibly disrupts existing electricity services in smart cities. The use of Electric Vehicles (EVs) do not only challenge the sustainability of the smart grid but also promote and stimulate its upgrading. Undeniably, EVs can actively promote the development of the smart grid via two-way communications by deploying Vehicle-to-Grid (V2G) and Grid-to-Vehicle (G2V). EVs have environmental benefits as compared to hybrids or even internal combustion engine vehicle as they can help minimize noise levels, pollution, and greenhouse gas emissions. The integration of EVs could bring substantial changes for the society not only in providing transportation services but also shifting economies from petroleum and reducing the carbon dioxide (CO2) emission from the transportation sector. Therefore, this study employs secondary data from the literature to explore how EVs can achieve sustainable energy as a service business model in smart cities. Findings from this study suggest that EVs are major assets for a sustainable energy future as EV batteries offers an untapped opportunity to store electricity from renewable energy sources. Implications from this study discusses the issues and recommendations for EVs integration in smart cities.


2021 ◽  
Vol 118 (18) ◽  
pp. e2008888118
Author(s):  
Nicola C. Oates ◽  
Amira Abood ◽  
Alexandra M. Schirmacher ◽  
Anna M. Alessi ◽  
Susannah M. Bird ◽  
...  

Lignocellulose, the structural component of plant cells, is a major agricultural byproduct and the most abundant terrestrial source of biopolymers on Earth. The complex and insoluble nature of lignocellulose limits its conversion into value-added commodities, and currently, efficient transformation requires expensive pretreatments and high loadings of enzymes. Here, we report on a fungus from the Parascedosporium genus, isolated from a wheat-straw composting community, that secretes a large and diverse array of carbohydrate-active enzymes (CAZymes) when grown on lignocellulosic substrates. We describe an oxidase activity that cleaves the major β-ether units in lignin, thereby releasing the flavonoid tricin from monocot lignin and enhancing the digestion of lignocellulose by polysaccharidase mixtures. We show that the enzyme, which holds potential for the biorefining industry, is widely distributed among lignocellulose-degrading fungi from the Sordariomycetes phylum.


2022 ◽  
pp. 100945
Author(s):  
Michael Van Lal Chhandama ◽  
Alongkrita Chumpi Chetia ◽  
Kumudini Belur Satyan ◽  
Supongsenla ◽  
Joseph V.L. Ruatpuia ◽  
...  

2021 ◽  
Author(s):  
Jian Peng ◽  
Wang Zhang ◽  
Jinsong Wang ◽  
Lin Li ◽  
Weihong Lai ◽  
...  

Abstract To reach a closed-loop material system and meet the urgent requirement of sustainable energy storage technologies, it is essential to incorporate efficient waste management into designing new energy storage materials. Here, we reported a “two birds with one stone” strategy to transform rusty iron products into Prussian blue as high-performance cathode materials and recover the rusty iron products to their original status. Owing to the high crystalline and Na+ content, the rusty iron derived Prussian blue shows a high specific capacity of 145 mAh g− 1 and excellent cycling stability over 3500 cycles. Through the in situ X-ray diffraction and in situ Raman spectra, it is found that the impressive ion storage capability and stability are greatly related to the suppressed structure distortion during the charge/discharge process. The ions migration mechanism and possibility as universal host of other kinds of ions are further illuminated by density functional theory calculations. This work provides a new strategy for recycling wasted materials into high value-added materials for sustainable battery systems, and is adaptable in the nanomedicine, catalysis, sensors, and gas storage applications.


Catalysts ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 309
Author(s):  
Ikram ul Haq ◽  
Kinza Qaisar ◽  
Ali Nawaz ◽  
Fatima Akram ◽  
Hamid Mukhtar ◽  
...  

The booming demand for energy across the world, especially for petroleum-based fuels, has led to the search for a long-term solution as a perfect source of sustainable energy. Lignocellulosic biomass resolves this obstacle as it is a readily available, inexpensive, and renewable fuel source that fulfills the criteria of sustainability. Valorization of lignocellulosic biomass and its components into value-added products maximizes the energy output and promotes the approach of lignocellulosic biorefinery. However, disruption of the recalcitrant structure of lignocellulosic biomass (LCB) via pretreatment technologies is costly and power-/heat-consuming. Therefore, devising an effective pretreatment method is a challenge. Likewise, the thermochemical and biological lignocellulosic conversion poses problems of efficiency, operational costs, and energy consumption. The advent of integrated technologies would probably resolve this problem. However, it is yet to be explored how to make it applicable at a commercial scale. This article will concisely review basic concepts of lignocellulosic composition and the routes opted by them to produce bioenergy. Moreover, it will also discuss the pros and cons of the pretreatment and conversion methods of lignocellulosic biomass. This critical analysis will bring to light the solutions for efficient and cost-effective conversion of lignocellulosic biomass that would pave the way for the development of sustainable energy systems.


Molecules ◽  
2020 ◽  
Vol 25 (12) ◽  
pp. 2811 ◽  
Author(s):  
Jaturong Kumla ◽  
Nakarin Suwannarach ◽  
Kanaporn Sujarit ◽  
Watsana Penkhrue ◽  
Pattana Kakumyan ◽  
...  

A large amount of agro-industrial waste is produced worldwide in various agricultural sectors and by different food industries. The disposal and burning of this waste have created major global environmental problems. Agro-industrial waste mainly consists of cellulose, hemicellulose and lignin, all of which are collectively defined as lignocellulosic materials. This waste can serve as a suitable substrate in the solid-state fermentation process involving mushrooms. Mushrooms degrade lignocellulosic substrates through lignocellulosic enzyme production and utilize the degraded products to produce their fruiting bodies. Therefore, mushroom cultivation can be considered a prominent biotechnological process for the reduction and valorization of agro-industrial waste. Such waste is generated as a result of the eco-friendly conversion of low-value by-products into new resources that can be used to produce value-added products. Here, we have produced a brief review of the current findings through an overview of recently published literature. This overview has focused on the use of agro-industrial waste as a growth substrate for mushroom cultivation and lignocellulolytic enzyme production.


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