Raman spectroscopy has great potential for quantitative analysis of natural gas. Helium is one of the components of natural gas and has a wide range of applications. It was believed that noble gases could not be detected using this technique due to the absence of their vibrational spectra. In this study, we demonstrated an approach to extracting the content of helium from the Raman spectrum of methane and carried out test measurements for the first time. The approach is based on the determination of changes in the ν band of methane caused by the influence of helium and other components. The necessary spectroscopic parameters characterizing the effect of methane (CH), helium (He), nitrogen (N), carbon dioxide (CO), and ethane (CH) on the ν band of methane at a resolution of 0.35 cm were obtained. The validation of the approach showed that the helium content in natural gas can be measured with an uncertainty of 1 mol% at a sample pressure of 50 bar. The measurement precision can be increased to 0.01 mol% by using a high-resolution spectrometer. The described method does not claim to replace helium detectors, but it can be considered a valuable addition to Raman gas analysis of natural gas in developing an all-in-one device. The possibilities for further improvement of the approach are also discussed.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1177/00037028241282669 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Novel Foamed Magnesium Phosphate Antimicrobial Bone Cement for Bone Augmentation.
J Biomed Mater Res B Appl Biomater
January 2025
Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, People's Republic of China.
In dental implant surgery, infection is identified as the primary factor contributing to the failure of bone grafts. There is an urgent need to develop bone graft materials possessing antibacterial characteristics to facilitate bone regeneration. Magnesium phosphate bone cement (MPC) is highly desirable for bone regeneration due to its favorable biocompatibility, plasticity, and osteogenic capabilities.
View Article and Find Full Text PDFPhytochemical Profiling and Biological Activities of Nigella sativa Vinegar Extract: An Insight Into Hypoglycemic Potential Using In Vivo and In Silico Studies.
Chem Biodivers
December 2024
Department of Biochemistry, Government College Women University, Faisalabad, Pakistan.
The current study was conducted to characterize the vinegar extract of Nigella sativa and evaluate its biological activities using in vitro and in vivo studies. The N. sativa extract (NSE) was prepared by macerating seeds in a mixture of water and synthetic vinegar (1:10).
View Article and Find Full Text PDFHigh nature value farming systems in Europe: A dataset encompassing the environmental impact assessment of farms and extensive ruminant food products.
Data Brief
February 2025
Department of Agricultural Sciences, Faculty of Agriculture and Forestry, University of Helsinki, Latokartanonkaari 5, 00014, Finland.
High Nature Value (HNV) farming systems occur in areas where the major land use is agriculture and are characterized by their significance in promoting biodiversity and ecosystem services due to their extensive land use. Despite their importance for ecological and socio-economic resilience of rural regions, these systems are often overlooked in Life Cycle Assessment (LCA) studies due to challenges in data compilation, especially from small local farms and because of the diversity of production. To address this gap, we established an international collaborative network across Europe, involving professionals directly engaged with farmers, farmer associations, and researchers to collect data on HNV farms employing a developed questionnaire examining inputs and outputs, farm structures, and herd characteristics.
View Article and Find Full Text PDFFactors Regulating the Potential for Freshwater Mineral Soil Wetlands to Function as Natural Climate Solutions.
Wetlands (Wilmington)
January 2025
Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, ON Canada.
There are increasing global efforts and initiatives aiming to tackle climate change and mitigate its impacts via natural climate solutions (NCS). Wetlands have been considered effective NCS given their capacity to sequester and retain atmospheric carbon dioxide (CO) while also providing a myriad of other ecosystem functions that can assist in mitigating the impacts of climate change. However, wetlands have a dual impact on climate, influencing the atmospheric concentrations of both CO and methane (CH).
View Article and Find Full Text PDFDesign, simulation, and manufacturing of analyzer optical cell for detection and measurement of injectable odorant at pressure reduction stations.
Heliyon
January 2025
Gas Company of Hormozgan Province, National Iranian Gas Company, Hormozgan, Iran.
The absence of a mercaptan compounds analyzer in natural gas pressure reduction stations (PRS) odorizer leads to inaccuracies in the injection dosage, often resulting in quantities beyond standard limits and consequently increasing odorant consumption. Insufficient odorant levels in natural gas can pose safety risks to consumers, as the gas may become odorless at the end of the pipeline. Therefore, accurate determination of the concentration of key odorant compounds in natural gas can reduce both costs and environmental risks.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!