Pyrolysis crude oil

Pyrolysis is the process of thermal degradation of a substance into smaller, less complex molecules. Many processes exist to thermally depolymerize tires to salable products. Almost any organic substance can be decomposed this way, including rice hulls, polyester fabric, nut shells, coal and heavy crude oil. Pyrolysis is also known as destructive distillation, thermal depolymerization, thermal cracking, coking, and carbonization. 

Process characteristics Pyrolysis of crude oil Pyrolysis of light crude oil Pyrolysis of crude oil, Ishimby field... 

Behar, F. et al. Experimental Study and Kinetic Modelling of Crude Oil Pyrolysis in Relation to Thermal Recovery Processes. 4th. UNITAR/UNDP Conference on Heavy Crude and Tar Sands 1988, Paper No. 97. 

Crude oil pyrolysis Production of acetylene and olefins atmos. 2000 - H2O co-production of naphthalene-rich gas oil... 

Production of pitch fibers was first investigated in Japan. In 1963, Sugio Otani obtained pitch fibers by the pyrolysis of lignin and later of PVC pitch. The first commercial product was the fiber from a pitch derived from crude oil pyrolysis, produced by Kureha,... 

Bench Scale Study on Crude Oil Pyrolysis for Olefin Production by Means of a Fluidized Bed Reactor... 

In this paper experimental results are presented on crude oil pyrolysis which was carried out by use of a bench scale batch type fluidized bed reactor heated by an electric furnace. Good yields of olefins and aromatics were obtained from several crude oils. Monographs are also presented which provide the means for estimating the products yield based on the characterization factor of the feed stock and the intensity function representing the severity of pyrolysis. 

Incidentally, a desired product pattern in a given range would be obtained by a proper choice of conditions of crude oil pyrolysis. 

Prediction of Product Yield from Crude Oil Pyrolysis. 

Distribution of Sulfur and Heavy Metals into the Pyrolysis Products. Since the crude oils employed in this study contain fairly large amounts of sulfur and heavy metal compounds, the behaviors of them in the course of the crude oil pyrolysis should be examined. 

Sulfur. In the experiments of Kuwait crude oil pyrolysis, sulfur distributions into the respective products, gas, liquid, and coke, were determined, and plotted against Ip as is shown in Figure 10. 

Table V summarizes the sulfur inspection data for Kuwait, Khafji, and Gach Saran crude oil pyrolysis.

Liquid fuels for use in internal-combustion engines are extracted and refined from crude oil, with diesel fuels being part of the middle distillate or kerosene fraction. Kerosene was initially derived from coal pyrolysis. The initial main use of this type of distillate was for the kerosene lamp, which had replaced lamps based on whale oil. 

During enhanced oil recovery by in-situ combustion, a crude oil undergoes chemical changes (pyrolysis reactions) and physical changes (dilution by the cracking products, vaporization and condensation of some fractions). Both phenomena are important for oil production ... 

Mansuy et al. [97] investigated the use of GC-C-IRMS as a complimentary correlation technique to GC and GC-MS, particularly for spilled crude oils and hydrocarbon samples that have undergone extensive weathering. In their study, a variety of oils and refined hydrocarbon products, weathered both artificially and naturally, were analyzed by GC, GC-MS, and GC-C-IRMS. The authors reported that in case of samples which have lost their more volatile n-alkanes as a result of weathering, the isotopic compositions of the individual compounds were not found to be extensively affected. Hence, GC-C-IRMS was shown to be useful for correlation of refined products dominated by n-alkanes in the C10-C20 region and containing none of the biomarkers more commonly used for source correlation purposes. For extensively weathered crude oils which have lost all of their n-alkanes,it has been demonstrated that isolation and pyrolysis of the asphaltenes followed by GC-C-IRMS of the individual pyrolysis products can be used for correlation purposes with their unaltered counterparts [97]. 

Crude oil Soybean oil Soybean oil methyl ester (biodiesel) Pyrolysis oil... 

Milton Denekas. The implication of the relation of crude oil composition to a Fischer-Tropsch product is that oil has been produced by a synthetic process (building-up) rather than by a degradative process. Can you assume that the products from coal pyrolysis are also produced by a synthetic building-up) process rather than by degradation ... 

A gaseous product rich in ethylene and propylene is made by pyrolysis of crude oil fractions according to the following description. Construct a flowsheet for the process. Use standard symbols for equipment and operating conditions. Space the symbols and proportion them in such a way that the sketch will have a pleasing appearance. 

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