A decade of sectoral initiative to promote consistent and reliable quantification of greenhouse gas emissions

2010 ◽  
Vol 50 (2) ◽  
pp. 696
Author(s):  
Karen Ritter ◽  
James Keating ◽  
Terri Shires ◽  
Miriam Lev-On

With the increased focus on greenhouse gas emissions (GHG) and their role in the implementation of policy measures for their mitigation, there continues to be a need for accurate, reliable and transparent characterisation of these emissions. A myriad of mandatory reporting regulations and voluntary initiatives with diverse protocols and methodologies are emerging globally. This poses a particular challenge to multinational companies, such as in the oil and natural gas industry sector, which operate globally and in joint ventures. The American Petroleum Institute (API) and its member companies recognised these challenges over a decade ago and launched a multi-year initiative to map out and provide tools for the quantification of GHG emissions from oil and natural gas industry operations and similar industrial sources. During this time span, the industry developed several key guidance documents to promote the consistent and accurate quantification and reporting of GHG emissions. This paper will focus on two recent publications: the 2009 Edition of API’s Compendium of GHG Emissions Estimation Methodologies for the Oil and Gas Industry (3rd revision); and, a new document addressing technical considerations and statistical calculation methods for assessing the uncertainty of GHG emission estimates. The paper will discuss case studies pertinent to oil and natural gas exploration and production activities and will put these in context with emerging US mandatory GHG emissions reporting. It will also discuss the broad applicability of these estimation methods, and uncertainty considerations, to most industry sectors that rely on fossil fuels for their energy sources.

2021 ◽  
pp. 129530
Author(s):  
Wally Contreras ◽  
Chris Hardy ◽  
Kaylene Tovar ◽  
Allison M. Piwetz ◽  
Chad R. Harris ◽  
...  

2009 ◽  
Vol 49 (2) ◽  
pp. 578
Author(s):  
John Torkington

The underground storage of greenhouse gases is seen by many as one of the primary technologies by which fossil fuel dependent nations can reduce their greenhouse gas emissions. Consequently there is a societal need to consider how best to facilitate the commercial scale uptake of this technology. Two principal barriers remain to the commercial scale deployment of greenhouse gas storage. Existing capture technologies are very expensive and there remains community concern that the underground storage of greenhouse gases is not permanent. It is likely that the natural gas industry will continue to be world leaders in the commercial-scale deployment of greenhouse gas storage, as this industry already captures large volumes of carbon dioxide and is familiar with underground storage technologies. In time, increased commercial scale deployment by the natural gas industry will build community confidence in the technology thus facilitating deployment by other industry sectors. Opportunities to promote greenhouse gas storage in Australia need to be considered in the broader policy context, which should be to reduce Australia’s greenhouse gas emissions at the lowest possible cost to the community. This extended abstract reviews the various ways in which greenhouse gas storage can be promoted and tests these in light of this broader policy context. The paper identifies those opportunities that should be pursued to promote the commercial scale uptake of greenhouse gas storage and flags those opportunities that, while they might assist in the uptake, are incompatible with the broader policy objective.


2021 ◽  
Vol 2021 (1) ◽  
pp. 4-13
Author(s):  
I.Ch. Leshchenko ◽  

The purpose of this paper is to explore the influence of the new Ukrainian and European regulatory framework for 2019-2020 concerning the decarburization of economy of the functioning of Ukrainian gas industry. The paper provides an overview of the Ukrainian regulatory framework of 2019–2020 on the implementation of the system of monitoring, reporting, and verification of greenhouse gas emissions in our country. We also provide an overview of new European documents on the decarbonisation of economy, in particular, the European Green Deal, the EU Strategy for Reducing Methane Emissions, and the Hydrogen Strategy for Climate-Neutral Europe. We showed that these EU documents will exert a significant influence on the functioning of both the energy sector of our country as a whole and its part – gas industry. The paper shows that, under the existing plans of the development of energy sector in European countries in order to reach the state where there are no net emissions of greenhouse gases by 2050 and under conditions of fierce competition for sources and routes of gas supply to the European market, the most pressing problem confronting the gas transportation system of Ukraine is to optimize its structure with simultaneous replacement of outdated compressor equipment by modern one with lower carbon dioxide emissions, which will require a significant amount of investment. Under such conditions, it is necessary to study carefully the feasibility of introducing activities for the main transportation of gas under the action of Greenhouse Gas Trading System. We also showed that the reduction of methane emissions along the natural gas chain supply in accordance with the EU Strategy for the reduction of methane emissions is extremely important for Ukraine. In addition to the implementation of measures for reducing these emissions, it is necessary to attract attention to the development of national methods for estimating methane emissions and the use of national coefficients in the formation of the National Greenhouse gas emissions inventory for estimating volatile emissions from natural gas activities. Keywords: monitoring, reporting and verification of greenhouse gas emissions, Greenhouse Gas Trading System, decarbonisation, European Green Deal, gas transportation system


Author(s):  
C. E. Ezeokoro ◽  
T. G Leton ◽  
Y. Momoh

The lack of GHG emissions inventory and absence of standardized estimation methods necessitated this study. American Petroleum Institute’s method of Greenhouse gas estimation methods combined with the global warming potential in the 5th assessment report and Nigeria’s unique gas composition were used to estimate volume of GHG’s resulting from gas flaring in Nigeria between 1965 to 2020, as reported by NNPC. The findings show the total CO2, CH4, N2O and GHG emission between 1965 to 2020 were 1.86*109 tons, 3.3*108 tons, 5.76*109 tons, and 7.94*109 tons respectively. In the 56 years under review, the gas produced was estimated at 2,14*106 MCM, while 9.44*105 MCM of the gas was flared, accounting for 44% of the total gas produced over the years. Overall, the study revealed a striking cause for concern due to the predicted continuous increasing amount of gas flaring and release of greenhouse gas emissions which could have significant effects on the environment. Curbing gas flaring: increased gas utilization for domestic and export uses and standardization of GHG estimation methods were recommended.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Xue Hao ◽  
Yu Ruihong ◽  
Zhang Zhuangzhuang ◽  
Qi Zhen ◽  
Lu Xixi ◽  
...  

AbstractGreenhouse gas (GHG) emissions from rivers and lakes have been shown to significantly contribute to global carbon and nitrogen cycling. In spatiotemporal-variable and human-impacted rivers in the grassland region, simultaneous carbon dioxide, methane and nitrous oxide emissions and their relationships under the different land use types are poorly documented. This research estimated greenhouse gas (CO2, CH4, N2O) emissions in the Xilin River of Inner Mongolia of China using direct measurements from 18 field campaigns under seven land use type (such as swamp, sand land, grassland, pond, reservoir, lake, waste water) conducted in 2018. The results showed that CO2 emissions were higher in June and August, mainly affected by pH and DO. Emissions of CH4 and N2O were higher in October, which were influenced by TN and TP. According to global warming potential, CO2 emissions accounted for 63.35% of the three GHG emissions, and CH4 and N2O emissions accounted for 35.98% and 0.66% in the Xilin river, respectively. Under the influence of different degrees of human-impact, the amount of CO2 emissions in the sand land type was very high, however, CH4 emissions and N2O emissions were very high in the artificial pond and the wastewater, respectively. For natural river, the greenhouse gas emissions from the reservoir and sand land were both low. The Xilin river was observed to be a source of carbon dioxide and methane, and the lake was a sink for nitrous oxide.


2021 ◽  
Author(s):  
Ain Kull ◽  
Iuliia Burdun ◽  
Gert Veber ◽  
Oleksandr Karasov ◽  
Martin Maddison ◽  
...  

<p>Besides water table depth, soil temperature is one of the main drivers of greenhouse gas (GHG) emissions in intact and managed peatlands. In this work, we evaluate the performance of remotely sensed land surface temperature (LST) as a proxy of greenhouse gas emissions in intact, drained and extracted peatlands. For this, we used chamber-measured carbon dioxide (CO<sub>2</sub>) and methane (CH<sub>4</sub>) data from seven peatlands in Estonia collected during vegetation season in 2017–2020. Additionally, we used temperature and water table depth data measured in situ. We studied relationships between CO<sub>2</sub>, CH<sub>4</sub>, in-situ parameters and remotely sensed LST from Landsat 7 and 8, and MODIS Terra. Results of our study suggest that LST has stronger relationships with surface and soil temperature as well as with ecosystem respiration (R<sub>eco</sub>) over drained and extracted sites than over intact ones. Over the extracted cites the correlation between R<sub>eco</sub> CO<sub>2</sub> and LST is 0.7, and over the drained sites correlation is 0.5. In natural sites, we revealed a moderate positive relationship between LST and CO<sub>2</sub> emitted in hollows (correlation is 0.6) while it is weak in hummocks (correlation is 0.3). Our study contributes to the better understanding of relationships between greenhouse gas emissions and their remotely sensed proxies over peatlands with different management status and enables better spatial assessment of GHG emissions in drainage affected northern temperate peatlands.</p>


Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5664
Author(s):  
Wenjing Wei ◽  
Peter B. Samuelsson ◽  
Anders Tilliander ◽  
Rutger Gyllenram ◽  
Pär G. Jönsson

The primary energy consumption and greenhouse gas emissions from nickel smelting products have been assessed through case studies using a process model based on mass and energy balance. The required primary energy for producing nickel metal, nickel oxide, ferronickel, and nickel pig iron is 174 GJ/t alloy (174 GJ/t contained Ni), 369 GJ/t alloy (485 GJ/t contained Ni), 110 GJ/t alloy (309 GJ/t contained Ni), and 60 GJ/t alloy (598 GJ/t contained Ni), respectively. Furthermore, the associated GHG emissions are 14 tCO2-eq/t alloy (14 tCO2-eq/t contained Ni), 30 t CO2-eq/t alloy (40 t CO2-eq/t contained Ni), 6 t CO2-eq/t alloy (18 t CO2-eq/t contained Ni), and 7 t CO2-eq/t alloy (69 t CO2-eq/t contained Ni). A possible carbon emission reduction can be observed by comparing ore type, ore grade, and electricity source, as well as allocation strategy. The suggested process model overcomes the limitation of a conventional life cycle assessment study which considers the process as a ‘black box’ and allows for an identification of further possibilities to implement sustainable nickel production.


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