Results 21 to 30 of about 393,537 (288)

An Analysis of Fossil-Fuel Dependence in the United States with Implications for Community Social Work

open access: yesCritical Social Work, 2019
This article examines fossil-fuel dependence in the United States with emphasis on the areas of transportation and food. It is argued that fossil-fuel dependence will cause significant social and economic problems in the future and that ongoing usage is ...
Robert Polack   +2 more
doaj   +1 more source

Comparative energetic assessment of methanol production from CO₂: chemical versus electrochemical process [PDF]

open access: yes, 2015
Emerging emission-to-liquid (eTL) technologies that produce liquid fuels from CO₂ are a possible solution for both the global issues of greenhouse gas emissions and fossil fuel depletion.
Al-Kalbani, H   +3 more
core   +1 more source

Biofuel burning and human respiration bias on satellite estimates of fossil fuel CO2 emissions

open access: yesEnvironmental Research Letters, 2020
The satellites that have been designed to support the monitoring of fossil fuel CO _2 emissions aim to systematically measure atmospheric CO _2 plumes generated by intense emissions from large cities, power plants and industrial sites.
P Ciais   +11 more
doaj   +1 more source

Global warming potential analysis of bio-jet fuel based on life cycle assessment

open access: yesCarbon Neutrality, 2022
Due to the large amount of greenhouse gas (GHG) emissions and the high dependence on fossil energy, the aviation industry has attracted a lot of attention for emission reduction and sustainable development.
Xiaonan Zhu   +4 more
doaj   +1 more source

Chemical looping CO2 capture and in-situ conversion as a promising platform for green and low-carbon industry transition: Review and perspective

open access: yesCarbon Capture Science & Technology
Industrial flue gas and solid waste with the characteristics of large emissions and complicated distributions are two issues for industry, due to that sequential CO2 capture and utilization for flue gas shows high energy-cost penalties and solid waste ...
Bo Jin   +6 more
doaj   +1 more source

Engineering management of gas turbine power plant co2 for microalgae biofuel production [PDF]

open access: yes, 2013
Fossil fuel accounts for over 80% of the world`s primary energy, particularly in areas of transportation, manufacturing and domestic heating. However, depletion of fossil reserves, frequent threats to the security of fossil fuel supply, coupled with ...
Di Lorenzo, Giuseppina   +2 more
core  

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

open access: yesAdvanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee   +7 more
wiley   +1 more source

Steel slag derived oxygen carriers and solid sorbents for chemical looping CO2 capture: A mini review

open access: yesResults in Engineering
Steel slag is a solid waste in iron and steel industry, which shows a harmful effect on the environment as its high valuable reutilization ratio is quite low.
Bo Jin   +6 more
doaj   +1 more source

Field emissions of N2O during biomass production may affect the sustainability of agro-biofuels [PDF]

open access: yes, 2011
Field emissions of N2O during cultivation of bioenergy crops may counterbalance a considerable part of the avoided fossil CO2 emissions that are achieved by fossil fuel ...
Ambus, Per   +7 more
core  

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

open access: yesAdvanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal   +10 more
wiley   +1 more source

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