Classifications of Crude Oil. 1. 2.1 Introduction 2.2 Classification Systems 2.2.1 Classification as a Hydrocarbon Resource 2.2.2 Classification by Chemical Composition 2.2.3 Correlation Index 2.2.4 Density 2.2.5 API Gravity 2.2.6 Viscosity 2.2.7 Carbon Distribution 2.2.8 Viscosity–Gravity Constant 2.2.9 UOP Characterization API Gravity; Viscosity; Pour Point; Concentration of Various Contaminants; Distillation and Boiling Points; Crude Assay; Characterization Factors; Elemental Analysis and Ternary Classification of Crude Oils; Self-Check Questions; Assignments; Summary and Final Tasks The American Petroleum Institute (API) has categorized base oils into five categories (API 1509, Appendix E). The first three groups are refined from petroleum crude oil. Group IV base oils are full synthetic (polyalphaolefin) oils. Group V is for all other base oils not included in Groups I through IV. The four steps involved in hazardous area classification are: Determine the type of hazard or "class" that might be present—combustible gas (Class I), combustible dust (Class II), or fibers (Class III). Identify the specific "group" for the hazardous substance (Group A through Group G). Classification of petroleum also indicates the best use for a particular field of petroleum. One oil type is not necessarily “better” than another, but rather the different types are useful in different applications. Light crude oil is preferable for refining into gasoline as it produces a far higher yield than heavy.
Crude oil is classified as light, medium, or heavy, which refers to the oil's relative density based on the American Petroleum Institute (API) Gravity. The measure Conventional crude oil and heavy oil have also been defined very generally in terms of physical properties. Classification of petroleum according to API gravity (5)Institute of Petroleum Engineering, College of Engineering, University of Tehran, Tehran, Iran. Classification based on °API gravity is very important to estimate 17 Sep 2019 A library of ExxonMobil crude oil blends sorted by API gravity and by sulfur content.
The American Petroleum Institute (API) is the only national trade association that represents all aspects of America’s oil and natural gas industry. Our more than 600 corporate members, from the largest major oil company to the smallest of independents, come from all segments of the industry. The American Petroleum Institute (API) is the only national trade association that represents all aspects of America’s oil and natural gas industry. Our more than 600 corporate members, from the largest major oil company to the smallest of independents, come from all segments of the industry. When crude oil is classified based on its API gravity it is divided into one of the following four classifications: Light – Light crude oil has an API gravity of 31.1 °API or higher. Medium – Medium crude oil has an API gravity that ranges between 22.3 °API and 31.1 °API.
Crude oil is a complex mixture of various components. Depending on its geographic origin, its chemical composition and consistency vary. The different types of crude oil need to be classified for further treatment. Both a crude oil's viscosity and its API (American Petroleum Institute) degree are important parameters for classification. One of the largest and major Classifications of Crude oil is Brent Blend, which is found in the North Sea. With an API gravity of 38.3 degrees and 0.37% of sulfur, this blend of crude oil comes from 15 various oil fields in the North Sea. West Texas Intermediate (WTI) otherwise known as Texas Light Sweet, Crude oil is considered "heavy" if it has long hydrocarbon chains, or "light" if it has short hydrocarbon chains: an API gravity of 34 or higher is "light", between 31-33 is "medium", and 30 or below is "heavy". Crude is considered "sweet" if it is low in sulphur content (< 0.5%/weight), or "sour" if high (> 1.0%/weight). Generally, the higher the API gravity (the "lighter" it is), the more valuable the crude. Classifications of Crude Oil. 1. 2.1 Introduction 2.2 Classification Systems 2.2.1 Classification as a Hydrocarbon Resource 2.2.2 Classification by Chemical Composition 2.2.3 Correlation Index 2.2.4 Density 2.2.5 API Gravity 2.2.6 Viscosity 2.2.7 Carbon Distribution 2.2.8 Viscosity–Gravity Constant 2.2.9 UOP Characterization API Gravity; Viscosity; Pour Point; Concentration of Various Contaminants; Distillation and Boiling Points; Crude Assay; Characterization Factors; Elemental Analysis and Ternary Classification of Crude Oils; Self-Check Questions; Assignments; Summary and Final Tasks The American Petroleum Institute (API) has categorized base oils into five categories (API 1509, Appendix E). The first three groups are refined from petroleum crude oil. Group IV base oils are full synthetic (polyalphaolefin) oils. Group V is for all other base oils not included in Groups I through IV.
11 Mar 2015 The reports do agree that the Bakken is properly classified as a Class 3 flammable liquid under the current classification system, though there is Based on their review of these classifications, the subcommittee identified the underlying key principals of a hydrocarbon classification scheme and critically Canada, Texas are the top importers and exporters of Crude Oil From 2709.00. 1000, Tariff classification of Petrozuata Heavy synthetic crude oil from 14 Jan 2020 Classification of crude oil emulsions. Crude oils can be categorized into four primary components: saturates (including waxes), aromatics, resins classification requirement in this Code for Electrical Installations at Oil and Gas 19-104 Supplemental Classifications for Oil and Gas Drilling and Servicing API 500 Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Division 1 and Division 2; IADC Hot Work Hazard 20 Mar 2019 most relevant for crude oil classification and transportation (Reid Vapor Pressure, or RVP,. Reid equivalent, or true vapor pressure),11 and.