2018 Oral Presentations

The following abstracts have been received and accepted for presentation at the 2018 Gulf Coast Conference. Additional submissions will be added to this list as they are received and accepted.

> View the 2017 presentations.

Abstract # 100 - Paper

Fuel Quality is Changing and Contaminates are Increasing:How to protect your gas fired turbine engine

Kristen Cassels - SGS North America, Inc.

Today’s highly efficient turbines rely on high-quality alloys to permit increased firing temperatures to be achieved and to maintain acceptable product life. Therefore more attention has to be placed on the quality of the fluids, from all sources, entering the gas turbine, especially the fuel. Gas Turbines can - and do - use a wide range of gaseous and liquid fuels and the subject of fuel quality is a major topic to consider in more depth.   As new gas fields are developed in remote sections of the globe, we at SGS have witnessed an accelerated development and production of gas fuels and especially the production of green gas fuels such as sour gas and land fill gases.   All Gas Turbine OEMs, including Siemens, provide comprehensive specifications covering the fuel quality permitted for use in a gas turbine. These are used to ensure fuel quality is defined at the onset of a project and throughout the lifetime of the turbine and are prepared to ensure acceptable turbine operation is achieved with little or no impact on major turbine component life.   At SGS we want to provide insight and understanding of fuel composition so that measures can be taken to minimize the impact of any major constituents of the fuel, along with the potential impact on turbine components of any identified contaminants and ways to mitigate this impact. Compositions of gaseous fuels, for example, can vary quite widely depending on their source and can contain a number of hydrocarbon species along with inert gases as well as contaminants. Liquid fuels are also commonly used, often as a back-up fuel, and these can also contain potentially harmful contaminants.     

Abstract # 101 - Paper

Microwave digestion replaces 10 hour ash methods for metals analysis in petroleum products

Reynhardt Klopper - Anton Paar, USA Inc.

Laboratories preparing petroleum samples for metals analysis have been using ASTM test methods D5708-B, D5863-A or IP 501 to prepare samples. These methods are slow, inefficient and laborious. Recently approved ASTM standard practice D7876 can reduce the preparation time, acid consumption and eliminate operator’s exposure to corrosive vapors. A novel microwave digestion instrument will be presented, which enables efficient and reproducible digestion of a wide variety of petroleum samples. Up to 24 different samples can be processed simultaneously, even applying varying acid mixtures. Digestions are performed under reflux or stirring to overcome challenges associated with highly viscous, buoyant, or reactive samples

Abstract # 104 - Paper

The Analysis of contaminants in Petroleum Products

Michael Pohl - HORIBA Instruments, Inc.

Both organic, inorganic and organo-metallic compounds show up as contaminants in petroleum products.  They can range from ppb levels all of the way to wt.% in samples.  In crude oil these materials are contaminants which came through the sample treatment while in lubricating oils.  These are materials which were intentionally added for performance reasons.  These materials can include most every element in the Periodic Table with many occurring in the same sample.  These challenges require the use of multiple analytical techniques to solve these problems.

One of the most versatile ways to meet this challenge is to use X-ray Fluorescence Spectroscopy.  The two possible approaches, WDXRF and EDXRF, have evolved to be two possible solutions to this challenge.  Both techniques can handle multiple elements and have been developed to have reasonably LOQ types of values.  These approaches will be compared and contrasted using some real world samples for comparison. The application to actual samples from an application perspective will be made.

Abstract # 108 - Training Course

Understanding how to develop quality methods in GPC/ SEC and Liquid chromatography.

Larry Meeker - Waters Corp

This training course is designed to discuss the practical aspects of method development for both GPC and LC. We will discuss; system set up, column selection, solvent choice and detector selection. Both the novice and seasoned chemist will find value in the topics covered such as Alpha, K, plate count, effects of pH etc. We will outline a process for developing a method from scratch that is easy and strait forward.

Abstract # 110 - Workshop

The Pyrolysis Workshop

Terry Ramus - Diablo Analytical
Itsuko Iwai - Frontier Laboratories
Rojin Belganeh - Frontier Laboratories

Pyrolysis performed correctly is a valuable and easy to use sample introduction technique for GC and GC/MS.  It allows the user to characterize any solid or viscous organic materials that otherwise could not be analyzed by GC.  Learn when to use Evolved Gas Analysis, Thermal Desorption, Heart-Cutting, or Pyrolysis; all with the same system. Potential, new and existing users of Frontier Labs’ Multi-functional Pyrolyzer products are encouraged to attend. No prior experience needed.  

Topics: 

-Materials characterization “method map”: a formula for success.

-Applications: deformulation, polymers, additives, coatings, biomass, oil shale, quantitative methods.

-Data Review Tools: hands-on use of F-Search Software and MS Libraries.

-Maintenance and Discussion Sessions.

Abstract # 111 - Paper

The Analysis of Regulated Phthalates in a Complex Matrix using Thermal Desorption-GC/MS

Rojin Belganeh - Frontier Lab
Terry Ramus - Diablo Analytical
Itsuko Iwai - Frontier Laboratories
Robert Freeman - Frontier Laboratories

Phthalates have been used as additives in plastic for many years to make them more flexible.  Several phthalates are regulated on a global scale, and several analytical techniques can be used for phthalates analysis.  Thermal Desorption (TD)-GC/MS is one of the easiest and most accurate methods for phthalate analysis. Recently manufacturers have switched formulations to include unregulated phthalates. Generally, phthalates are identified using both retention time and MS spectra. However, some unregulated phthalates have similar retention times and MS spectra, compared to regulated phthalates. This is the basis of existing ASTM and IEC methods for regulated phthalates by this technique.

Abstract # 112 - Paper

Analysis, Characterization, and Deformulation of Apparently Similar Rubber Parts Using Multiple Modes of Pyrolysis-GC/MS

Terry Ramus - Diablo Analytical

The formulation details of the polymer parts are often not known to the manufacturer or other steps in the supply chain.  The same part number in the supply chain can result in a polymer part that is not made with the same formulation, yet the apparent polymer properties seem to be equivalent. Pyrolysis-GC/MS is used in multiple modes to characterize a set of rubber parts that seem approximately similar.  The results reveal significant differences in chemical composition.  Results can be used to monitor parts quality at the manufacturing point in the supply chain to reduce future variability in part failure.

Abstract # 113 - Paper

Analysis of Acrylic Adhesives Using Pyrolysis-GC/MS

Itsuko Iwai - Frontier Lab
Terry Ramus - Diablo Analytical
Rojin Belganeh - Frontier Laboratories
Robert Freeman - Frontier Laboratories

Dicing tape is a backing tape used during silicon wafer dicing. The adhesive on the tape holds silicon dies, the pieces of semiconductor wafer, with high adhesion. The adhesive should include two features; the die must be held tightly during the cutting process, and the dicing tape must be easily removed after cutting. Die manufacturers seek techniques for material characterization of the dicing tapes as the compositions of adhesives are often not disclosed. This work demonstrates how to qualify and quantify the composition of dicing tapes using the multi-mode Pyrolysis GCMS while the adhesive was directly analyzed without sample preparation.

Abstract # 114 - Paper

Finding the Perfect LIMS in the Petrochemical and Refining Sectors

Steve Wesson - Accelerated Technology Laboratories

This presentation is targeted at petrochemical and refining organizations who are looking to implement a Laboratory Information Management Systems (LIMS) and looking for guidance on making the right choice. We will focus on the critical points to remember during the selection process and walk through a list of proven LIMS selection and implementation best practices that will help ensure your LIMS project is a success. We will also discuss key LIMS features that are critical for laboratories supporting petrochemical and refining companies.

Abstract # 115 - Seminar

Laboratory Automation Today in the Oil & Gas Industry

Christine Paszko - Accelerated Technology Laboratories

This seminar will be a primer on how laboratories in the oil and gas industry are implementing modern laboratory automation solutions to increase lab productivity and data quality while reducing costs and achieving a strong return on investment.   At the center of a robust lab automation solution is a Laboratory Information Management System (LIMS), a critical software solution that is designed to streamline the sample management process from login through disposal. We’ll also discuss the importance of instrument integration and bar coding as essential pieces of a complete solution. And we will also highlight several petrochemical/refining companies and their use of LIMS to manage lab operations.

Abstract # 116 - Paper

Novel Quantitation Method Development for Asphaltene Inhibitor Analysis Using Pyrolysis GC-MS and MS/MS

Lei (Lyla) Cheng - Ecolab
Tim Bonner - Ecolab
Christopher Durnell - Ecolab
Casado-Rivera Emerilis - Ecolab

Asphaltene inhibitors (AI) are polymer additives to prevent the aggregation of asphaltene molecules and therefore shift the asphaltene onset pressure. AI residual analysis is significant to understand the performance of AI. AI product A is dosed at very low concentrations into the oil (up to a few hundred parts per million by volume). The challenge is to improve sensitivity at low detection limit while a trace amount of sample is used by pyrolysis GC-MS. To solve this challenge, an improved pyrolysis GC-MS (selected ion monitoring, SIM) technique is being developed for the quantitation and the potential MRM (multiple reaction monitoring) method with higher sensitivity was investigated. The curve is linear ranging from 100 ppm to 1000 ppm. The SIM method has higher sensitivity than the Full scan and EIC method in the published patent method. MRM is still under development by investigating the characteristic fragment ions of the series of nonylphenol ions. This novel method has high repeatability and high sensitivity with small amount of sample use about 0.1~0.2 mg. The technique is going to be applied to monitor the performance of the AI product in filed.

Abstract # 117 - Paper

50 Minute Detailed Hydrocarbon Analysis of Gasoline Using Gas Chromatography – Vacuum Ultraviolet Absorption Spectroscopy

James Diekmann - VUV Analytics
Jack Cochran - VUV Analytics

Detailed Hydrocarbon Analysis (DHA) by ASTM Method D6730 uses high-resolution GC-FID to separate and quantify individual spark-engine fuel compounds, which can then be reported as paraffins, isoparaffins, olefins, naphthenes, and aromatics (PIONA).  GC run time is long and post-processing data review is necessary to ensure accurate peak integration for closely eluting compounds.   GC with vacuum ultraviolet (VUV) absorption spectroscopy offers a new DHA approach.  VUV spectra uniqueness enables deconvolution while class similarity of spectra permits PIONA reporting.  DHA GC run time can be shortened to 50 min.  Fully automated data processing produces a compound and class report in 90 sec.

Abstract # 118 - Paper

OLEFIN CLASS CHARACTERIZATION IN GASOLINE-RANGE SAMPLES USING GAS CHROMATOGRAPHY - VACUUM ULTRAVIOLET SPECTRSCOPY

Alex Hodgson - VUV Analytics
Jack Cochran - VUV Analytics

Olefins cause problems for refineries. For example, conjugated dienes in fluid catalytic cracking gasolines are prone to polymerization, which can plug downstream processes.   Gas chromatography with flame ionization detection or mass spectrometry struggles with olefin differentiation.  Methods specific for conjugated diene characterization vary in complexity, analysis time, and accuracy. Diene analysis using maleic anhydride addition takes more than 3 hours, and suffers from incomplete reactions and interferences.   Vacuum ultraviolet spectroscopy (VUV) differentiates gasoline hydrocarbons based on their distinctive spectra.  Olefins – and particularly conjugated dienes – absorb strongly in the higher wavelength region, allowing for deconvolution and quantitation in complex fuel matrices.