Tel:
86-27-83372627
86-27-83372628
86-27-83372629
Fax:
86-27-83372625
E-mail:
info@sinicline.net
Crude Quality Issues |
|
| Release time:2013-03-27 Source:admin Reads: | |
| Believe that most people may only know crude oil is a highly variant natural resource. The quality ranges are similar to coal and depending on the maturation of the crude the quality can be high or low (younger crude's are of lower quality). One of the first indications of quality is color. The variations in oil color can be dramatic, and very indicative of the quality of that crude. Not all crude oil is black - higher quality oils can be a golden or amber in color. In fact, acrylonitrile butadiene styrene is one of them which can be made into plastic seals. For the quality measures, inspectors check it based on the ability to produce the desired products. In the U.S., about 50% of the oil is converted into gasoline. So an oil that produces a higher % of gasoline "cuts" is more desirable and have a higher quality oil. Take note, we have used much of the higher quality crude oil already! Now we need to use the lower quality oils too and the general trend is to use increasingly lower quality crude's. Moreover, the lower quality oils can be refined for plastic seals, toys and other products making. This quality reduction has an impact on how we refine the crude into the desirable products. Do not use the term "Thickness" which is a length measurement. Viscosity is the resistance to flow, the higher the viscosity the slower the liquid will flow and the lower the quality. That’s why plastic seals and plastic bags are hard to resolve. The viscosity process is a measure of quality, because the chemical structure of the crude influences its flow ability. Longer chain molecules for example are harder to flow than short chains because of non-bonding interactions. If you have had any chemistry you will recall ionic (type of bonding in salt crystals) and covalent bonding (the type of bonding between 2 carbon atoms). Those are bonding interactions. There are several non-bonding interactions that occur which attract molecules. It is the relative strength of these non-bonding interactions that influences the resistance to flow. |
