Degradation of sulfur heterocycles in prudhoe bay crude oil by soil enrichments

1984 ◽  
Vol 21 (1-4) ◽  
pp. 225-230 ◽  
Author(s):  
P. M. Fedorak ◽  
D. W. S. Westlake
Keyword(s):  
Crude Oil ◽  
Sulfur Heterocycles ◽  
Prudhoe Bay

Microbial degradation of organic sulfur compounds in Prudhoe Bay crude oil

1983 ◽  
Vol 29 (3) ◽  
pp. 291-296 ◽  
Author(s):  
P. M. Fedorak ◽  
D. W. S. Westlake
Keyword(s):  
Crude Oil ◽  
Microbial Population ◽  
Sulfur Compounds ◽  
Residual Oil ◽  
Nutrient Supplementation ◽  
Organic Sulfur Compounds ◽  
Sulfur Heterocycles ◽  
Prudhoe Bay ◽  
Oil Tanker ◽  
Two Populations

Water samples from three different marine environments in Washington State were challenged with Prudhoe Bay crude oil and incubated at 8 °C with aeration. Some cultures were supplemented with NH4NO3 and phosphate and after various lengths of time, up to 27 days, the residual oil was extracted and fractionated using silica gel columns. The aromatic fraction was analyzed by capillary gas chromatography using a sulfur-specific flame photometric detector. The oil contained alkylbenzo[b]thiophenes, dibenzothiophene, and C1- and C2-dibenzothiophenes and the degradation of these was monitored. Many of the sulfur heterocycles were metabolized without nutrient supplementation although the number and extent of the compounds degraded increased with nutrient addition. The order of susceptibility of the sulfur heterocycles in homologous series was found to be the following: C2-benzo[b]thiophenes > C3-benzothiophenes; dibenzothiophene > C1-dibenzothiophenes > C2-dibenzothiophenes. With nutrient supplementation, the microbial population from a harbor area metabolized the sulfur compounds more readily than those from near an oil tanker dock or from a pristine state park beach. Without supplementation, the population from the tanker dock area degraded many fewer sulfur heterocycles than the other two populations.

Effect of the dispersant Corexit 9527 on the microbial degradation of sulfur heterocycles in Prudhoe Bay oil

1983 ◽  
Vol 29 (5) ◽  
pp. 623-627 ◽  
Author(s):  
J. M. Foght ◽  
P. M. Fedorak ◽  
D. W. S. Westlake
Keyword(s):  
Gas Chromatography ◽  
Crude Oil ◽  
Microbial Degradation ◽  
Capillary Gas Chromatography ◽  
Inhibitory Effect ◽  
Nutrient Supplementation ◽  
Sulfur Heterocycles ◽  
Prudhoe Bay ◽  
Specific Detector

Samples from a previous study observing the effects of Corexit 9527 on microbial degradation of aromatics and saturates in crude oil were reanalyzed by capillary gas chromatography with a sulfur-specific detector. The results show an inhibitory effect on degradation of sulfur heterocycles (such as benzothiophenes and dibenzothiophenes), dependent upon dispersant concentration and nutrient supplementation.

Alaskan Transportation: An Overview of Some Aspects of Transporting Alaskan Crude Oil

1979 ◽  
Vol 16 (03) ◽  
pp. 211-224
Author(s):  
Stanley Factor ◽  
Sandra J. Grove
Keyword(s):  
Crude Oil ◽  
Gulf Coast ◽  
The United States ◽  
Oil Field ◽  
Oil Well ◽  
Paper Briefly ◽  
The North ◽  
Prudhoe Bay ◽  
Design Construction ◽  
Commercial Oil

The first commercial oil well in Alaska was drilled in 1901, but it was in 1968 that Alaska was thrust into prominence as an oil producer with the discovery of the Prudhoe Bay field, the largest oil field ever found in the United States. This paper briefly explores the transportation-related aspects of the design, construction, and operation of the pipeline and support facilities. The pipeline terminates at Port Valdez on Prince William Sound. It is from here that the second leg of the journey to the energy-hungry lower 48 states begins. A thoroughly modern and unique marine transportation system is being utilized to transport approximately 1.2 million barrels (191 000 m3) per day of Alaskan crude oil to West and Gulf Coast refineries. The Valdez Terminal, the pipeline, the North Slope supply, and vessel particulars and operations are discussed; in addition, environmental and legal problems are outlined.

Blending, Measuring, And Transporting Crude Oil/NGL Mixtures From Prudhoe Bay

1985 ◽  
Author(s):  
J.W. Earhart ◽  
F. Berto ◽  
R.W. Bucklin ◽  
B.A. Kemper ◽  
R.B. Nielsen
Keyword(s):  
Crude Oil ◽  
Prudhoe Bay
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