(7) From (8), it is evident that an error is induced at every time-step due to the truncation of the Taylor series, this is referred to as the local truncation error (LTE) of the method. For the forward Euler method, the LTE is O(h2). Hence, the method is referred to as a first order technique.
Abstract. An integrated thermal recovery process using a solvent of a pentane or hexane or both as an additive to, or sole component of, a gravity-dominated process for recovering bitumen or heavy oil from a reservoir. A pentane-hexane specific solvent fraction is extracted at surface from a diluent stream.
Best Answer: Petroleum ether is a mixture of two hydrocarbons, Hexane which is liquid and a certain amount of Propane, which is a hydrocarbon gas soluble in Hexane.This lowers the boiling point of the mix below that of Hexane. believe it is about 30 dollars a gallon. FYI: Petroleum ether is not an actual ether. Diethyl ether is a true ether and is much more volitile and an even better oil extraction solvent. However it is also twice as inflammable and can even decompose into explosive peroxides as it ages.