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Fuel Sample - SAN ANTONIO TX- Petroleum Administration for Defense District (PADD) 3

IP.com Disclosure Number: IPCOM000187042D
Publication Date: 2009-Sep-01

Publishing Venue

The IP.com Prior Art Database

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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 ANTONIO, TX - Petroleum Administration for Defense District (PADD) 3

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 824

PADD 3

Sample Ty pe RU

Emissions Ty pe CONV

Season Summer

Date Sampled 7/13/2008 8:50:00 AM

Surv ey Area SAN ANTONIO, TX

RVP, D 5191, psi 7.59

ETOH, Wt, D 5599 (D 4815 f or Calif ornia Samples) 0

EtOH, Vol, D 5599 (D 4815 f or Calif ornia Samples) 0

Corrected Aromatics, D 1319, % 29.6

Corrected Olef ins, D 1319, % 13.9

Sulf ur, D 5453, ppm

Sulf ur, D 2622, ppm 50.3

Sulf ur (D5453 or D2622), ppm 50.3

Ev ap_10, D 86, Deg F 131

Ev ap_50, D 86, Deg F 220

Ev ap_90, D 86, Deg F 341

RON, D 2699 92.3

MON, D 2700 81.6

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

    Propane 3 P 44.097 7.37 74-98-6 0.001 0.001 0.002 i-Butane 4 I 58.124 8.61 75-28-5 0.081 0.107 0.134 isobutene 4 I 58.124 9.36 115-11-7 0.054 0.068 0.089 Butene-1 4 O 56.108 9.4 106-98-9 0.055 0.069 0.094 n-Butane 4 P 58.124 9.72 106-97-8 1.030 1.318 1.707 t-Butene-2 4 O 56.108 10.17 624-64-6 0.198 0.243 0.340 2,2-Dimethy lpropane 4 I 72.151 10.29 463-82-1 0.011 0.014 0.015 c-Butene-2 4 O 56.108 10.85 590-18-1 0.214 0.255 0.367 3-Methy lbutene-1 5 O 70.135 12.93 563-45-1 0.149 0.176 0.205

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

     i-Pentane 5 I 72.151 14.38 78-78-4 8.725 10.426 11.646 Pentene-1 5 O 70.135 15.9 109-67-1 0.456 0.527 0.626 2-Methy lbutene-1 5 I 70.135 16.7 563-46-2 0.973 1.107 1.336 n-Pentane 5 P 72.151 17.2 109-66-0 4.157 4.915 5.549 2-Methy l-1,3-Butadiene 5 O 68.119 17.68 78-79-5 0.036 0.039 0.051 t-Pentene-2 5 O 70.135 18.25 646-04-8 1.105 1.263 1.517 3,3-Dimethy lbutene-1 6 O 84.162 19.11 558-37-2 0.014 0.016 0.016 c-Pentene-2 5 O 70.135 19.23 627-20-3 0.608 0.687 0.835 2-Methy lbutene-2 5 O 70.135 19.87 513-35-9 1.838 2.055 2....