E-Learning

The use of chromatography in all of its forms is a powerful and widely recognized practice in petrochemical research. Due to the continuous optimization of instrumentation and columns, substantial progress in terms of separation efficiency and selectivity, speed of analysis, and sensitivity has been made over the last decades. Many petrochemical products and derivatives thereof are generally complex due to presence of a large number of compounds with varying physicochemical properties. Moreov...

In this presentation, multidimensional GC configurations will be discussed for different petrochemical analyses. This will include classical heart-cut two-dimensional GC (2D-GC), whereby selected fractions from a high resolution first dimension separation are transferred to a high resolution second dimension separation, as well as comprehensive GC (GCxGC), whereby the entire sample is separated on a high resolution first dimension and a fast (low resolution) second dimension. The complementar...

The detection and quantification of fugitive and diffuse methane emissions has become an increasing priority in recent years. As the requirements for routine measurement to support industry initiatives increase there is a growing requirement to assess and validate the performance of fugitive emission measurement technologies. For reported emissions traceability and comparability of measurements is important. This talk will present recent work on addressing these needs.  Differential Absor...

Tunable diode laser spectroscopy (TDLS) is an important measurement technology for gas detection, offering both high sensitivity and specificity to the target gas. With this technique, much of the engineering requirement and achievable field performance is attributable to the gas cell in which the light interacts with the target gas. We present two new technologies for gas cells, each with different attributes, used for methane detection in different applications.  The first technology ha...

Laser Dispersion Spectroscopy (LDS), is a new gas sensing technique that applies a novel approach to tuneable diode laser spectroscopy. Established laser absorption techniques depend on measuring detected intensity to derive concentration. This significantly impacts measurements in "dirty" environments where detected intensity of the transmitted light is bound to fluctuate. MIRICO's LDS-based instrument derives concentration using the phase of light. This makes it highly immune to intensity f...

In 2014 the US Department of Energy's ARPA-E program initiated MONITOR, a 45M US$ investment in methane detection technologies. The eleven technologies funded under the program are reaching the end of their second development year and beginning field testing. Initial testing has been performed at the Methane Emissions Test and Evaluation Center (METEC) at Colorado State University, which reproduces emissions behavior at oil & gas (O&G) wells, small compressor stations, and underground gas gat...

We present a case study of a validation experiment to characterise the precision and uncertainty constraints of a newly developed mass balancing flux calculation method, using in situ measurements of methane concentration sampled by an unmanned aerial vehicle (UAV) platform.  This case study (funded by the UK Environment Agency) was conducted by the University of Manchester and National Physical Laboratory with assistance from the UK Met Office at its Cardington research facility. The aim...

With the ongoing integration of biogas and other biofuels into existing energy infrastructure, there is a focus on the need to establish rigorous technical specifications for biogas and biomethane. Such regulatory framework requires the determination of the biogenic content of gases consisting of both biogenic and natural gas. One potential tool for making this determination is stable isotope analysis. The isotopic composition of natural gas and biogas varies significantly, with the isotopic...

National Grid Plc is incentivised by the Office of Gas and Electricity Markets (Ofgem) to conduct research into new techniques to enable National Grid Gas (NGG) to improve understanding and transparency, and allow for cost-effective mitigation, of greenhouse gas (GHG) venting on the National Transmission System (NTS). The mechanism by which this is done is special condition 8J of the Gas Transporters Licence, the Greenhouse Gas Investigation Mechanism (GHGIM). Since 2008 NGG has conducted...

Adam Brandt from Stanford University opens up the Industrial Methane Measurement Conference with an opening keynote: State of knowledge on emissions: current and future. Natural gas systems methane emissions: State of the science and remaining questions.