Greenhouse gases emissions in liquified natural gas as a marine fuel: Life cycle analysis and reduction potential

2021 ◽  
Author(s):  
Ahmad Al‐Douri ◽  
Abdulrahman S. Alsuhaibani ◽  
Margaux Moore ◽  
Rasmus Bach Nielsen ◽  
Amro A. El‐Baz ◽  
...  
Keyword(s):  
Life Cycle ◽  
Natural Gas ◽  
Greenhouse Gases ◽  
Life Cycle Analysis ◽  
Reduction Potential ◽  
Marine Fuel ◽  
Greenhouse Gases Emissions

scholarly journals Life cycle energy use and greenhouse gas emissions of ammonia production from renewable resources and industrial by-products

2020 ◽  
Vol 22 (17) ◽  
pp. 5751-5761 ◽  
Author(s):  
Xinyu Liu ◽  
Amgad Elgowainy ◽  
Michael Wang
Keyword(s):  
Life Cycle ◽  
Natural Gas ◽  
Greenhouse Gases ◽  
Greenhouse Gas ◽  
Renewable Resources ◽  
Energy Use ◽  
Ammonia Production ◽  
Fossil Energy ◽  
Greenhouse Gases Emissions ◽  
By Products

Ammonia from renewables and industrial by-products has lower lifecycle fossil-energy use and greenhouse gases emissions than ammonia from natural gas.

Life Cycle Analysis of Natural Gas Extraction and Power Generation

2019 ◽  
Author(s):  
James Littlefield ◽  
Selina Roman-White ◽  
Dan Augustine ◽  
Ambica Pegallapati ◽  
George G. Zaimes ◽  
...  
Keyword(s):  
Power Generation ◽  
Life Cycle ◽  
Natural Gas ◽  
Life Cycle Analysis ◽  
Gas Extraction ◽  
Natural Gas Extraction

scholarly journals Guidlines for Inventors “From Idea to Product”

2020 ◽  
Author(s):  
Roberts Kaķis ◽  
Dagnija Blumberga ◽  
Ģirts Vīgants
Keyword(s):  
Life Cycle ◽  
Natural Gas ◽  
Life Cycle Analysis ◽  
Ecological Footprint ◽  
Patent Application ◽  
Wood Dust ◽  
Gas Burner ◽  
Reduce Emissions ◽  
Main Components ◽  
Fine Wood

The article deals with the problem facing Latvian inventors in how to develop the idea to a real product. There are often cases where innovative ideas “migrate” from original inventors to other inventors, when they turn to them to seek support for developing and supporting the idea. The main components of the guidelines are the establishment of a patent application and, in general, a description of the entire patent acquisition process and the creation of a life cycle analysis using the SimaPro software. The article is intended primarily for the development of environmentally friendly inventions, which is why the life cycle analysis is one of the main components of the article, to make it possible to conclude whether the production and use of the new product will not result in a higher “ecological footprint” than previously used technologies, paying particular attention to the inventor stage in order to accurately develop a life-cycle analysis. The article does not only explore the necessary theoretical knowledge of the realisation of the idea to the product, but also looks at the pilot case, a practical example of an innovative “dust co-firing burner” compared to the conventional natural gas burner. The life-cycle analysis compares the following steps: manufacture of plants, transportation of plants and special emphasis on the combustion phase of fuels, three scenarios are examined: a natural gas burner burning natural gas, a dust burner in which natural gas is co-incinerated and fine wood particles − dust and a dust burner burning. biomethane and wood dust. The use of such an installation would not only reduce emissions from the replacement of natural gas by wood dust, but also allow energy companies to work more effectively, as it would be possible to regulate the proportion of different fuels depending on demand, because the fuels have different heat of combustion. The article establishes a methodology to analyse the quality and implementation of inventions in response to the following key questions: − how to identify original ideas and how to protect authors from the migration of ideas; − how to collect and analyse the risks associated with migration of ideas; − how to use life cycle analysis for the assessment of the “ecological footprint” of the invention.

scholarly journals Life-cycle analysis of shale gas and natural gas.

2012 ◽  
Author(s):  
C.E. Clark ◽  
J. Han ◽  
A. Burnham ◽  
J.B. Dunn ◽  
M. Wang
Keyword(s):  
Life Cycle ◽  
Natural Gas ◽  
Shale Gas ◽  
Life Cycle Analysis

scholarly journals Coupling Exergy with the Emission of Greenhouse Gases in Bioenergy: A Case Study Using Biochar

Energies ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 1057
Author(s):  
Jair Araújo Júnior ◽  
Armando Caldeira-Pires ◽  
Sérgio Oliveira
Keyword(s):  
Life Cycle ◽  
Greenhouse Gases ◽  
Nitrous Oxide Emissions ◽  
Reference Scenario ◽  
Life Cycle Approach ◽  
Environmental Index ◽  
Greenhouse Gases Emissions ◽  
Emission Of Greenhouse Gases

The loss in the quality of energy throughout any process can be assessed by the thermodynamics magnitude related to its entropic performance—the exergy. This indicator has been suggested as an environmental index, as an alternative to life cycle assessment (LCA), which is a classic tool for this purpose. This study assesses the potential of coupling the life cycle approach and exergy in a bioenergy supply chain environmental performance characterization, examining two scenarios in the sugarcane agroindustry. The first one, the reference scenario, is a classical production, and the second includes the returning of a portion of residual biomass from the plant, in the form of biochar, to agricultural soil. The use of biochar engendered an increase in sugarcane productivities and a reduction of nitrous oxide emissions. These changes resulted in scenarios 1 and 2, reducing the exergy destroyed from 390 to 355 MJ/MJ ethanol (9.0%) and decreasing the greenhouse gases emissions (GHG) from 11.8 to 11.0 g CO2-equivalent/MJ ethanol (6.8%). The latter represents an improvement in the use of carbon. A sensitivity analysis showed that the effect of changing productivity was quite significant: The exergy showed a sensitivity of −0.49, and in total emissions, this figure was slightly lower, at −0.41. By changing the emissions of N2O in the soil, the sensitivity of exergy was almost null, and the total emissions were 0.077.

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