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

IP.com Disclosure Number: IPCOM000186744D
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 87

PADD 5

Sample Ty pe RU

Emissions Ty pe CONV

Season Winter

Date Sampled 1/15/2008 12:15:00 PM

Surv ey Area SAN FRANCISCO, CA

RVP, D 5191, psi 10.92

ETOH, Wt, D 5599 (D 4815 f or Calif ornia Samples) 6.077808

EtOH, Vol, D 5599 (D 4815 f or Calif ornia Samples) 5.626125

Corrected Aromatics, D 1319, % 25.2922

Corrected Olef ins, D 1319, % 1.981851

Sulf ur, D 5453, ppm 8

Sulf ur, D 2622, ppm

Sulf ur (D5453 or D2622), ppm 8

Ev ap_10, D 86, Deg F 117

Ev ap_50, D 86, Deg F 196

Ev ap_90, D 86, Deg F 287

RON, D 2699 91

MON, D 2700 83.8

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 0.680 0.911 1.051 Butene-1 4 O 56.108 9.4 106-98-9 0.008 0.010 0.013 n-Butane 4 P 58.124 9.72 106-97-8 2.046 2.636 3.162 t-Butene-2 4 O 56.108 10.17 624-64-6 0.034 0.042 0.055 2,2-Dimethy lpropane 4 I 72.151 10.29 463-82-1 0.019 0.024 0.023 c-Butene-2 4 O 56.108 10.85 590-18-1 0.027 0.032 0.044 Ethanol 2 OX 46.07 12.66 64-17-5 6.078 5.626 11.850 i-Pentane 5 I 72.151 14.38 78-78-4 5.279 6.355 6.572 Pentene-1 5 O 70.135 15.9 109-67-1 0.040 0.047 0.052

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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 0.083 0.095 0.107 n-Pentane 5 P 72.151 17.2 109-66-0 3.622 4.314 4.509

2-Methy l-1,3-Butadiene 5 O 68.119 17.68 78-79-5 0.007 0.007 0.009 t-Pentene-2 5 O 70.135 18.25 646-04-8 0.147 0.169 0.189

3-Methy lbutadiene-1,2 5 O 68.12 18.44 598-25-4 0.005 0.006 0.006 c-Pentene-2 5 O 70.135 19.23 627-20-3 0.078 0.088 0.099

 2-Methy lbutene-2 5 O 70.135 19.87 513-35-9 0.225 0.253 0.288 2,2-Dimethy lbutane 6 I 86.178 21.91 75-83-2 2.301 2.643 2.398

  Cy clopentene 5 O 68.119 24.45...