The beginning of the amazing events at Krakatoa in 1883 date to May 20 when there were initial rumblings and venting from the volcano, which had been dormant for about 200 years.
A refinery margin is the revenue associated with refining petroleum, expressed as a value per volume (e.g. $/L), net of the cost of the crude oil input. The simplest refining
Refining and Conching. Melangeur and Refiner/Conche. Refining is the final grinding of all particles in the liquid chocolate together to produce an even extremely smooth texture in which no grit can be detected on oneâs tongue or pallet. Conching is a long process of intense mixing, agitating, and aerating of heated liquid chocolate.