A name for a fractionation system that reduces the vapor pressure of a liquid product so that the resulting liquid is less volatile.

The vertical chimney-like installation that is the waste disposal system for unwanted vapor such as flue gases or tail-gas streams.

The system of separators wherein the liquid portion of the well effluent is separated from formation gas and flash vapors.

This refers to a gas volume measurement at a specified temperature and pressure. The temperature and pressure may be defined in the gas sales contract or by reference to other standards. Typically the standard pressure and temperature are 14.7 psia and 60 F.

A term used to relate a volume of vapor at specified conditions in U.S. customary units.

A term used to relate a volume of vapor at specified conditions in metric units.

This law is specific for each of several states. The law defines the pressure and temperature bases under which a standard cubic foot of gas should be measured in the particular state. The standard applies only to the specific state and may not agree with that in another state.

One of the names given to a boiler plant.

Steam with a minimum amount of superheat to prevent condensation.

Steam that exists at the temperature corresponding to its absolute pressure. Saturated steam may contain, or be free of, water particles.

The name given to the column wherein the absorbed product is distilled from the lean absorption oil. In plants using a low molecular weight absorption oil, the still is designed as a fractionation unit. In plants using a high molecular weight absorption oil, the still may use steam or other fluids as a stripping medium.

One of several liquid products stored in tanks for subsequent sale or use.

A tank in which liquid products are stored for subsequent sale, for subsequent use, and/or for retention while their specifications are being checked.

A facility which processes gas being transported through a transmission pipeline.

A gas processing plant designed to remove liquids from a transportation pipeline and return the liquid dry gas to the pipeline.

A term applied to the process of calibrating liquid storage capacity of storage tanks in increments of depth.

The liquid, gas or solids contained in any pipeline or flowing line.

A continous 24 hours of plant operations.

A column wherein absorbed constituents are stripped from the absorption oil. The term is applicable to columns using stripping medium, such as steam or gas.

An expression used to explain the degree of stripping. Mathematically, it is KV/L, the reciprocal of the absorption factor.

As stated under "stripper," the medium is steam, gas, or other material that will increase the driving force for stripping.

A term used to refer to gas formed from gasification of heavy hydrocarbons rather than produced from a well.

A pale yellow, non-metallic chemical element. In its elemental state, called "free sulfur," it has a crystalline or amorphous form. In many gas streams, sulfur may be found as volatile sulfur compounds, i.e., hydrogen sulfide, sulfur oxides, mercaptans, carbonyl sulfide. Reduction of their concentration levels is necessary for corrosion control and, in many cases, necessary for health and safety reasons.

A heavy, colorless, suffocating gas that is, chemically, an oxide of sulfur. Conversion of the gaseous sulfur oxides to sulfur is necessary for corrosion control, for health and safety reasons, and for complying with governmental standards.

A plant that makes sulfur from the hydrogen sulfide extracted from natural gas. One-third of the hydrogen sulfide is burned to sulfur dioxide, which is reacted with the remaining hydrogen sulfide in the presence of a catalyst to make sulfur and water.