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Fuel Sample - SAN FRANCISCO CA- Petroleum Administration for Defense District (PADD) 5

IP.com Disclosure Number: IPCOM000186805D
Publication Date: 2009-Aug-31

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IPCOM000186443D: IP.COM [+2]

Abstract

API conducted a program to collect detailed chemical composition data from a broad range of commercial gasoline samples with objective of using this information as “prior arts” to maximize freedom of operations on a broad spectrum of fuel compositions. The data collection and fuel composition analysis was performed for API by Southwest Research Institute (SwRI). SwRI formed a consortium of petroleum companies in the early 1980s to conduct a monthly survey of fuel quality. SwRI collects fuel samples from service stations in 62 U.S. cities, analyzes them and distributes reports to consortium subscribers. About 350 samples are collected each month. For this study, the subscribers gave API permission to (a) select a stratified subset of 590 of the SwRI gasoline survey samples collected in January and July of 2008, (b) augment the dataset with measurements of the concentrations of up to 610 individual chemical compounds in each sample, and (c) publish the results.

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Fuel Sample - SAN FRANCISCO, CA - Petroleum Administration for Defense District (PADD) 5

The f ollowing pages contain inf ormation on the chemical composition and property characteristics of a commercial

gasoline f uel sample collected in a specif ied geographic area denoted by city , state and "PADD" number. PADD is

an acrony m meaning "Petroleum Administration f or Def ense Districts" and is commonly used by agencies such

as the US Energy Inf ormation Administration f or classif y ing petroleum product supply and consumption patterns.

See f igure at right

For additional details on the study that created this report, please consult "Hy drocarbon Composition and Fuel

Properties of Commercial Gasolines" IPCOM000186443

located at http://priorartdatabase.com/IPCOM/000186443 .

Also, f or a summary statistical analy sis of the property v alues f or all of the commercial gasoline f uel samples

reported in the abov e-ref erenced study , please consult the spreadsheet entitled "Hy drocarbon Composition and

Fuel Properties of Commercial Gasolines - Data Summaries" IPCOM000186444D

located at http://priorartdatabase.com/IPCOM/000186444 .

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SwRI Sample Identif ication 848

PADD 5

Sample Ty pe RU

Emissions Ty pe CARFG

Season Summer

Date Sampled 7/12/2008 3:45:00 PM

Surv ey Area SAN FRANCISCO, CA

RVP, D 5191, psi 7.08

ETOH, Wt, D 5599 (D 4815 f or Calif ornia Samples) 5.835062

EtOH, Vol, D 5599 (D 4815 f or Calif ornia Samples) 5.437434

Corrected Aromatics, D 1319, % 22.12764

Corrected Olef ins, D 1319, % 2.931439

Sulf ur, D 5453, ppm 7.9

Sulf ur, D 2622, ppm

Sulf ur (D5453 or D2622), ppm 7.9

Ev ap_10, D 86, Deg F 133

Ev ap_50, D 86, Deg F 208

Ev ap_90, D 86, Deg F 308

RON, D 2699 91.6

MON, D 2700 84.4

Component Carbon # Type M.W . Avg R.T. Cas No wt % Identified vol % Identified mole % Identified

    i-Butane 4 I 58.124 8.61 75-28-5 0.014 0.018 0.022 n-Butane 4 P 58.124 9.72 106-97-8 0.254 0.321 0.399 t-Butene-2 4 O 56.108 10.17 624-64-6 0.002 0.002 0.003 2,2-Dimethy lpropane 4 I 72.151 10.29 463-82-1 0.004 0.006 0.005 c-Butene-2 4 O 56.108 10.85 590-18-1 0.001 0.002 0.002 Ethanol 2 OX 46.07 12.66 64-17-5 5.835 5.437 11.556 3-Methy lbutene-1 5 O 70.135 12.93 563-45-1 0.688 0.804 0.895 i-Pentane 5 I 72.151 14.38 78-78-4 8.801 10.398 11.130 Pentene-1 5 O 70.135 15.9 109-67-1 0.022 0.025 0.028

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Component Carbon # Type M.W . Avg R.T. Cas No wt % Identified vol % Identified mole % Identified

2-Methy lbutene-1 5 I 70.135 16.7 563-46-2 0.044 0.049 0.058 n-Pentane 5 P 72.151 17.2 109-66-0 2.852 3.334 3.606 t-Pentene-2 5 O 70.135 18.25 646-04-8 0.096 0.109 0.125 c-Pentene-2 5 O 70.135 19.23 627-20-3 0.056 0.063 0.073

 2-Methy lbutene-2 5 O 70.135 19.87 513-35-9 0.163 0.180 0.212 2,2-Dimethy lbutane 6 I 86.178 21.91 75-83-2 2.259 2.547 2.391

  Cy clopentene 5 O 68.119 24.45 142-29-0 0.032 0.030 0.043 3-Methy lpentene-1 6 O 84.162 26.06 760-20-3 0.039 0.043 0.042

   Cy clopentane 5 N 70.1...