***From the book*** As discussed in Chapter 1, many natural gases contain significant quantities of hydrocarbons that can be removed and liquefied (NGL) to produce the dry natural gas distributed to industrial and residential customer. (Dry in this context means that the NGL content is sufficiently low so that liquid will ... click here for more details.

Errata for Petroleum Refining: Technology and Economics, 5th Edition By James H. Gary, Glenn E. Handwerk

***From the book*** Crude oil in its natural state has no value to consumers and must be transformed into products that can be used in the marketplace. Various physical and chemical methods are used in refining processes. Heat, pressure, catalysts, and chemicals are applied under widely varying process design, operating conditions, ... click here for more details.

***From the book*** In a typical refinery, somewhere in the range of 100 to 200 LP cases are run each week. Most of these cases relate to crude oil evaluation, production planning, and day-to-day operations planning. A description of each of these applications is presented in the following paragraphs.