Engineering Stack

Aug. 30, 2020

Process Analyzer Sample Systems are common to almost all process (on-line) analyzer installations, but often overlooked or not addressed adequately. They are usually 80% of the challenge (and support requirements) of an analyzer system. Several elements are crucial to consider …

Aug. 25, 2020

Rich/Lean Amine Loading (RAL/LAL) refers to the amount of acid gases (CO2, H2S etc,) dissolved in a given amount of amine. RAL and LAL is a very important factor for the operation, maintenance and performance of an amine plant.To remove …

Aug. 17, 2020

This document discusses a simple low cost tank blending method. It is referred to as a shrouded blending nozzle system, and it works quite well. The shroud causes the jet nozzle to educt a large quantity of surrounding fluid, improving …

Aug. 1, 2020

Quench control is used in closed loop refrigerant applications where cooling of the hot recycle gas stream is achieved by direct mixing of a cold multi-phase gas/liquid. The liquids used for quenching are already produced by operation of the refrigeration …

May 16, 2020

Consideration of practical replacements for gas such as coal, heavy fuel oil, middle distillates, LPG and vice versa.Fuels considered most practical replacements for gas include coal, heavy fuel oils, middle distillates (such as kerosene type turbo fuel and burner fuel …

April 29, 2020

The following lesson learned outlines an installation of pipeline heat tracing for a new process unit within an existing chemical/petrochemical facility. The system design consisted of self-limiting cables for process pipeline heating with a 240-volt power distribution supply (three-phase ungrounded …

April 11, 2020

Gas flow meter is a mechanical device for automatically measuring quantities of gas. Some of the more popular than others depending on application and requirements. The most important types are:Diaphragm flow meters — Diaphragm flow meters are gas meters in …