Praxair, Inc. (Danbury, Conn.; www.praxair.com) says it has started up three new vacuum pressure swing adsorption (VPSA) plants at the Daesan petrochemical complex located on the west coast of the Korean peninsula. Praxair will start up a fourth VPSA plant…
This company now offers a wider range of process air stages by introducing the large blower series known as Alpha Blower (photo). Featuring 104 model variants, this series provides a high degree of flexibility for numerous applications. These positive-displacement blowers…
Trash bags Barrier films used in food packaging are difficult to recycle effectively, because they often contain multiple polymers that are not compatible with one another in the mixing steps required for the recycling process. Now, trash bags made from…
The technological advances that we witness in our everyday lives are quite astounding. What were once fantasies in science fiction have become reality. “Smart” devices that are now affordable to many, can talk to us, answer our questions, vacuum our…
The relationship between valve selection and safety certification still causes confusion. A focus on functional safety can help to elucidate Among the many varied viewpoints on the topic of emergency shutdown (ESD) valves, there are several aspects that continue to…
General guidelines for selecting the appropriate power-plant cooling system are presented here The main purpose of a power plant is to convert a source of energy into electric power. Most power plants rely on heat as the energy source (thermal…
This overview presents the traditional and emerging types of continuous crystallizers Crystallization is an important technique for the purification of solids in the chemical process industries (CPI). The operation can be performed batchwise or in continuous operation, and is used…
Reliable information about industrial crystallization can be difficult to find and to apply to new situations. The work process outlined here will help engineers approach crystallization challenges Project and plant engineers frequently face issues with crystallization processes, but often possess…
This column is based on “Calcium Hypochlorite Production via Sodium Method – Cost Analysis,” a report published by Intratec. It can be found at: www.intratec.us/analysis/calcium-hypochlorite-production-cost. Calcium hypochlorite, Ca(OCl)2, is among the few metal hypochlorites that is stable enough to be…
Cake filtration is a common operation across many sectors of the chemical process industries (CPI). In cake filtration, the solid being filtered acts as a screen so that particles of the suspension are retained by the medium, resulting in the…