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Thermodynamics of reformulated automotive fuels

Journal Article · · Hydrocarbon Processing
OSTI ID:69964
 [1];  [2];  [3]
  1. Columbia Univ., New York, NY (United States)
  2. BOC Gases, Murray Hill, NJ (United States)
  3. Technische Chemie Univ. Oldenburg (Germany)
+ Show Author Affiliations
Two methods for predicting Reid vapor pressure (Rvp) and initial vapor emissions of reformulated gasoline blends that contain one or more oxygenated compounds show excellent agreement with experimental data. In the first method, method A, D-86 distillation data for gasoline blends are used for predicting Rvp from a simulation of the mini dry vapor pressure equivalent (Dvpe) experiment. The other method, method B, relies on analytical information (PIANO analyses) of the base gasoline and uses classical thermodynamics for simulating the same Rvp equivalent (Rvpe) mini experiment. Method B also predicts composition and other properties for the fuel`s initial vapor emission. Method B, although complex, is more useful in that is can predict properties of blends without a D-86 distillation. An important aspect of method B is its capability to predict composition of initial vapor emissions from gasoline blends. Thus, it offers a powerful tool to planners of gasoline blending. Method B uses theoretically sound formulas, rigorous thermodynamic routines and uses data and correlations of physical properties that are in the public domain. Results indicate that predictions made with both methods agree very well with experimental values of Dvpe. Computer simulation methods were programmed and tested.
OSTI ID:
69964
Journal Information:
Hydrocarbon Processing, Journal Name: Hydrocarbon Processing Journal Issue: 6 Vol. 74; ISSN HYPRAX; ISSN 0018-8190
Country of Publication:
United States
Language:
English

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Related Subjects

02 PETROLEUM
10 SYNTHETIC FUELS
CHEMICAL COMPOSITION
COMPILED DATA
COMPUTERIZED SIMULATION
ETHERS
EVAPORATION
FUEL ADDITIVES
GASOLINE
MATHEMATICAL MODELS
MEASURING METHODS
MIXING
US EPA
VAPOR PRESSURE
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