PEFTEC 2019 - Abstract

Abstract Title: Fully Automated CHNS/O determination for Petrochemistry by the FlashSmart Elemental Analyzer
Abstract Type: Oral
Session Choice: Analytical Techniques: Elemental Analysis and Speciation
Presenter Name: Dr Guido Giazzi
Co-authors:Dr Liliana Krotz
Dr Francesco Leone
Company/Organisation: Thermo Fisher Scientific
Country: Japan

Abstract Information :

Elemental analysis is an important technique in petroleum chemistry. Using an automated analyzer, rapid and accurate weight percentage carbon, nitrogen, hydrogen, sulfur, and oxygen (CHNS/O) data can be obtained together with the relative heat value calculation to ascertain the quality needed for better engine performance and to help with the identification of vehicle exhaust constituents, harmful and hazardous to the environment. Specifications and legislative limitations on hazardous and toxic pollutants from vehicle emissions have been introduced due to increasing atmospheric pollution.

The Thermo Scientific FlashSmart Elemental Analyzer is equipped with two totally independent furnaces, allowing the installation of two analytical circuits that are used alternatively and fully automated through the Thermo Scientific MultiValve Control (MVC) Module. Each analytical circuit can accept its own autosampler and be configured and automatically switch between the independent analytical setups to increase sample throughput and maximize system up-time. In this way, the system copes effortlessly with the wide array of laboratory requirements such as accuracy, day to day reproducibility, and high sample throughput. The MVC Module also ensures lower helium consumption (used as carrier gas) by switching from helium to nitrogen or argon gas, when the instrument is in Stand-By Mode. Therefore, the cost of analysis is significantly lower. For trace Sulfur determination, the analyzer has been coupled with the flame photometric detector (FPD). This method combines the advantages of the elemental analyzer with the sensitivity, selectivity and robustness of the FPD.

A complete report is automatically generated by the Thermo Scientific EagerSmart Data Handling Software and displayed at the end of the analysis. The EagerSmart Data Handling Software allows the automatic calculation of both GHV and NHV heat values (Gross Heat Value and Net Heat Value, both expressed in kcal/kg), and the CO2 Emission Trade data.

This paper presents CHNS/O data of several petrochemical samples with different concentrations to demonstrate the repeatability and accuracy of the instrument.