Furfural – A versatile, biomass-derived platform chemical for the production for renewable chemicals

2021 ◽  
Author(s):  
Anurag Jaswal ◽  
Piyush Pratap Singh ◽  
Tarak Mondal

For years, fossil fuels have been the predominant feedstock for the production of chemicals, resulting in their overexploitation and widespread environmental degradation, prompting a search for alternative feedstocks. In this...

Catalysts ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 488 ◽  
Author(s):  
Xiao Chen ◽  
Weixiang Guan ◽  
Chi-Wing Tsang ◽  
Haoquan Hu ◽  
Changhai Liang

Energy and fuels derived from biomass pose lesser impact on the environmental carbon footprint than those derived from fossil fuels. In order for the biomass-to-energy and biomass-to-chemicals processes to play their important role in the loop of the circular economy, highly active, selective, and stable catalysts and the related efficient chemical processes are urgently needed. Lignin is the most thermal stable fraction of biomass and a particularly important resource for the production of chemicals and fuels. This mini review mainly focuses on lignin valorizations for renewable chemicals and fuels production and summarizes the recent interest in the lignin valorization over Ni and relevant bimetallic metal catalysts on various supports. Particular attention will be paid to those strategies to convert lignin to chemicals and fuels components, such as pyrolysis, hydrodeoxygenation, and hydrogenolysis. The review is written in a simple and elaborated way in order to draw chemists and engineers’ attention to Ni-based catalysts in lignin valorizations and guide them in designing innovative catalytic materials based on the lignin conversion reaction.


Author(s):  
Shailendra Sinha

Development of any country mainly depends on availability of energy, at the same time most of the environmental problems are associated with the use of energy. Sustainable development should be approached in all of its primary dimensions: economic, environmental and social. Energy has deep and broad relationships with each of the three pillars of sustainable development. Rapid industrialization, increasing urbanization and motorization and increase in consumption of fossil fuels are main reasons for environmental degradation. Emissions associated with combustion of fuel have a significant impact on the ecosystem, affecting animals, plants and aquatic life. Transport sector is one of the major contributors to pollution in urban areas. If present trends continue, including the heavy reliance on fossil fuels, risks will build up not only in the environmental dimension but also in the economic dimension. We need to change not only the structure of the energy sector but also behavior in our societies and economies. This paper reviews the use of biofuels, pollutant formation from engines and methods to control emissions for cleaner environment and sustainable development.


Author(s):  
Bin Zhang ◽  
Yan Jiang ◽  
Zhimin Li ◽  
Fei Wang ◽  
Xiao-Yu Wu

Due to the non-renewable nature of fossil fuels, microbial fermentation is considered a sustainable approach for chemical production using glucose, xylose, menthol, and other complex carbon sources represented by lignocellulosic biomass. Among these, xylose, methanol, arabinose, glycerol, and other alternative feedstocks have been identified as superior non-food sustainable carbon substrates that can be effectively developed for microbe-based bioproduction. Corynebacterium glutamicum is a model gram-positive bacterium that has been extensively engineered to produce amino acids and other chemicals. Recently, in order to reduce production costs and avoid competition for human food, C. glutamicum has also been engineered to broaden its substrate spectrum. Strengthening endogenous metabolic pathways or assembling heterologous ones enables C. glutamicum to rapidly catabolize a multitude of carbon sources. This review summarizes recent progress in metabolic engineering of C. glutamicum toward a broad substrate spectrum and diverse chemical production. In particularly, utilization of lignocellulosic biomass-derived complex hybrid carbon source represents the futural direction for non-food renewable feedstocks was discussed.


2014 ◽  
Vol 21 (1) ◽  
pp. 237 ◽  
Author(s):  
Anna J. Willow

Acknowledging environmental degradation as a profoundly political phenomenon, this article examines how uninvited environmental change transforms people's understandings of and relationships to the natural world. Drawing on qualitative research conducted in a semi-remote Canadian Anishinaabe community and among Euro-American residents of Ohio who oppose local shale energy development, I trace parallels between the disempowerment and vulnerability experienced by people with very different assumptions about the world and their place in it and very different positions within the global political economic system. While environmental justice scholars have revealed compelling correlations between social and environmental inequity, I argue that investigating environmental degradation's sociocultural impacts among relatively privileged groups can encourage more dynamic explorations of conjoined environmental/social/political systems and expose ongoing structural shifts. My comparative analysis seems to suggest that ever-increasing segments of the world's population now contend with environmental challenges that they did not authorize, and do not benefit from. I thus conclude by calling for additional investigations of environmental degradation in unexpected places and the implications of extensive inequity for global sustainability.Key words: Energy, environmental degradation, environmental justice, fossil fuels, hydraulic fracking, landscape, North America, shale gas


2021 ◽  
Author(s):  
Orazaliyev Kanat ◽  
Zhijun Yan ◽  
Muhammad Mansoor Asghar ◽  
Zahoor Ahmed ◽  
Haider Mahmood ◽  
...  

Abstract Environmental degradation sourced by conventional energy sources is not only a major factor behind climate change but also poses an adverse impact on human health. Undoubtedly, fossil fuels are major drivers of economic growth; however, their detrimental environmental impacts are of global scope, affecting the inhabitants of the whole world. In the literature, there is no comprehensive empirical evidence on the linkage between different energy sources and CO2 emissions in Russia which is among the top five CO2 emitting nations. Thus, this paper aims to quantify the relationships between oil consumption, natural gas consumption, coal consumption, and CO2 emission controlling economic growth in Russia. The findings indicate that CO2 emissions in Russia are cointegrated with oil, gas, coal, and economic growth. The long-run outcomes unfold that Russian economic growth is not directly harmful to environmental quality; however, the consumption of oil, gas, and coal upsurge the level of CO2 emissions. In addition, we conducted Granger causality tests for causal interaction analysis. The findings on the Russian data confirm the existence of both long and short-term causal connections with the country’s economic growth, disaggregated fossil fuel consumption, and CO2 emissions. In conclusion, we directed several policy recommendations to address the challenges and threats posed by energy-related emissions without adversely impacting economic growth in Russia. These policies could also be advantageous to other countries, especially those with close Russian links.


2021 ◽  
Author(s):  
Khuda Bakhsh ◽  
Tanzila Akmal ◽  
Tauqeer Ahmad ◽  
Qasir Abbas

Abstract Developing countries like Pakistan majorly depends on fossil fuels for achieving higher economic growth but have sloppy environmental rules and regulations in order to attract foreign direct investment (FDI). As a result, energy consumption is considered as the primary cause of environmental degradation. Besides CO2 emission, environmental degradation is also associated with emission of sulfur dioxide (SO2). The purpose of this study was to investigate the relationship among SO2 emissions, energy consumption, economic growth and FDI in Pakistan. By applying the 3SLS method study has estimated the scale effect, composition effect and technique effect. The scale effect and technique effect findings indicated that capital stock, FDI, and SO2 emissions all had a significant impact on GDP. When the capital accumulation effects of FDI were considered, the relationship between FDI and stock of capital was found to be positive. According to the technique effect results, FDI, population density, and energy consumption were all significantly related to SO2 emissions. The study came to a conclusion with significant policy implications.


2020 ◽  
pp. 149-159
Author(s):  
Jatinder Kataria ◽  
Saroj Kumar Mohapatra ◽  
Amit Pal

The limited fossil reserves, spiraling price and environmental impact due to usage of fossil fuels leads the world wide researchers’ interest in using alternative renewable and environment safe fuels that can meet the energy demand. Biodiesel is an emerging renewable alternative fuel to conventional diesel which can be produced from both edible and non-edible oils, animal fats, algae etc. The society is in dire need of using renewable fuels as an immediate control measure to mitigate the pollution level. In this work an attempt is made to review the requisite and access the capability of the biodiesel in improving the environmental degradation.


2013 ◽  
pp. 109-128 ◽  
Author(s):  
C. Rühl

This paper presents the highlights of the third annual edition of the BP Energy Outlook, which sets out BP’s view of the most likely developments in global energy markets to 2030, based on up-to-date analysis and taking into account developments of the past year. The Outlook’s overall expectation for growth in global energy demand is to be 36% higher in 2030 than in 2011 and almost all the growth coming from emerging economies. It also reflects shifting expectations of the pattern of supply, with unconventional sources — shale gas and tight oil together with heavy oil and biofuels — playing an increasingly important role and, in particular, transforming the energy balance of the US. While the fuel mix is evolving, fossil fuels will continue to be dominant. Oil, gas and coal are expected to converge on market shares of around 26—28% each by 2030, and non-fossil fuels — nuclear, hydro and renewables — on a share of around 6—7% each. By 2030, increasing production and moderating demand will result in the US being 99% self-sufficient in net energy. Meanwhile, with continuing steep economic growth, major emerging economies such as China and India will become increasingly reliant on energy imports. These shifts will have major impacts on trade balances.


TAPPI Journal ◽  
2015 ◽  
Vol 14 (6) ◽  
pp. 353-359 ◽  
Author(s):  
PETER W. HART ◽  
RICARDO B. SANTOS

Eucalyptus plantations have been used as a source of short fiber for papermaking for more than 40 years. The development in genetic improvement and clonal programs has produced improved density plantations that have resulted in fast growing, increased fiber volume eucalypts becoming the most widely used source of short fibers in the world. High productivity and short rotation times, along with the uniformity and improved wood quality of clonal plantations have attracted private industry investment in eucalypt plantations. Currently, only a handful of species or hybrids are used in plantation efforts. Many more species are being evaluated to either enhance fiber properties or expand the range of eucalypt plantations. Eucalyptus plantations are frequently planted on nonforested land and may be used, in part, as a means of conserving native forests while allowing the production of high quality fiber for economic uses. Finally, eucalypt plantations can provide significant carbon sinks, which may be used to help offset the carbon released from burning fossil fuels. The development and expansion of eucalypt plantations represents a substantial revolution in pulp and paper manufacturing.


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