White Papers

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  • Improving Accuracy and Precision in Crude Oil Boiling Point Distribution Analysis
    Boiling point characteristics for crude oil are used by the refineries to characterize the raw product so it can model the end product closer to specs. More accurate and precise data for the entire crude oil range translates into better profit for the refinery with very little product give-away while still meeting stringent product specifications. Combining High Temp SIMDIS with DHA Front-End delivers better precision data for the whole crude as such, resulting in more accurate cut point determinations, and a better product value optimization. This white paper compares results from High Temp SIMDIS versus HighTemp SIMDIS/DHA Front-End analysis.


  • The Advantage of Real Atmospheric Distillation Complying with the ASTM D7345 Test Method in the Distillation Process
    The distillation characteristics, i.e., volatility, of hydrocarbons significantly impact the safety and performance of end-products, particularly with fuels and solvents. The boiling range gives information on the composition, the properties, and the behavior of the fuel during storage and use. This paper discusses the benefits of using a process application of the ASTM D7345 test method to provide real, online distillation analysis to prevent product giveaway and reprocessing, and to meet tight blending specifications at the most reasonable cost.
  • Comparative On-Line Atmospheric Distillation and Total Sulfur Analysis Methods in the Gasoline Blender
    Tight blending specifications are required to make gasoline at the most reasonable cost. On-line analysis provides crucial information to prevent product giveaway and reprocessing. This paper presents a technology discussion for total sulfur analysis and determining distillation boiling points in the gasoline blender, including:
    • How lab and process data correlations are interpreted and best practices, including a discussion of ASTM methods
    • How tight monitoring can help the process and improve profitability
    • What issues occur when transitioning to process control
    • How to optimize sampling and specific installations


  • PAC Antek On-line Total Sulfur Analysis in Process Streams for FCC Gasoline Selective Desulfurization
    Total sulfur is an important parameter to monitor and control intermediates and/or final products for process optimization and blending in refineries, pipelines, and petrochemical plants. An online sulfur analysis can be deployed at many points in the process and provides the means to monitor conversion processes to produce the most valuable products without giveaway.
  • Accurate Viscosity Measurement Under Extreme Pressure and Temperature Conditions
    Standard Cambridge Viscosity high pressure viscometers such as the VISCOlab PVT are rated for continuous service at pressures from ambient to 20,000 psi and temperatures from ambient to 190°C. The heart of these products is Cambridge’s SPL-440 sensor. This sensor provides continuous measurements, in real time, at an accuracy ranging from 1% at ambient conditions to 5% at the extreme conditions. This paper details:
    • How to accurately measure viscosity under high pressure and high temperature
    • Calibration methods to get consistent results
    • How a VISCOlab PVT makes accurate viscosity measurements even under extreme conditions.


  • Effective Viscosity Management in Asphalt and Lubrication Oil Refineries
    Viscosity is one on the most critical measures of product quality for virtually every refinery product.  New developments in viscosity measurement are enabling refineries to realize significant improvements in production quality, cost, and output. These new developments and their respective benefits are discussed in this paper.


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