Crude oil topping units fill a need for crude oil producers that have domestic requirements for diesel, fuel oil, kerosene, AGO, LPG or asphalt but donât have total refining capacity. Essentially they are atmospheric distillation units that produce hydrocarbon boiling point cuts from resid to LPG. topping unit is an inexpensive, technically simple means to enhance the value of crude oil near the source of production. Crude oil distillation is an energy intensive process that requires crude oil heaters with cross heat exchangers.
In the U.S., the legal definition of an Antique is any item over 100 years old. The term Vintage is used to describe something that is second generation or older. So the toys your parents played with, or the clothes they wore when they were your age would be considered Vintage but not Antiques.
It means that the item is Gold and that the Purity of the Gold has 14 part out of 24 pure old or about 58.5% pure gold. One of the easiest ways to tell if a piece of jewelry is gold or not is to look for a stamp (10K, 14K, 18K, 22K, 24K). In a perfect world, all gold jewelry is marked with a big, bright 14K stamp. In the real world, there are hard-to-read stamps, stamps that mean gold-plated, stamps that are fakeâ¦and the list goes on.