Technical & Practical
Prevent Product Release with Pressure Protection Systems
Closing off pressure upstream can minimize the need for pressure-relief systems to open, avoiding product waste and possible environmental damage Any system within a chemical process industries (CPI) manufacturing plant that is pressurized, or could experience pressure during an upset…
Technology Profile: Production of Polyacrylonitrile Fibers
This column is based on “Polyacrylonitrile Production – Cost Analysis,” a report published by Intratec. It can be found at: www.intratec.us/analysis/polyacrylonitrile-production-cost. Polyacrylonitrile (PAN) is a polymer resin mainly composed of acrylonitrile. This important acrylic resin is used in the production…
Facts at your Fingertips: Convection versus Conduction Drying in Industry
Adjustment and control of moisture levels in solid materials is a critical aspect in the manufacture of many chemical products. Drying can be defined as the vaporization and removal of water or other liquids from a solution, suspension, or other…
Unified Operational Environment Improves Process Safety
A unified gateway station and related components increase availability to improve operations and safety In information technology (IT) security circles, the most important acronym is CIA: confidentiality, integrity, availability. In industrial control security, the corresponding acronym is AIC: availability, integrity,…
The Value of Safety Instrumented Systems
A safety instrumented system (SIS) is important to ensure the safe operation of a plant. The SIS requires up-to-date sensors — recent developments in vortex flowmeters are presented here There are four key areas of concern for chemical producers that…
Technology Profile: Calcium Carbide Production from Limestone
This column is based on “Calcium Carbide Production from Limestone – Cost Analysis,” a report published by Intratec. It can be found at: www.intratec.us/analysis/calcium-carbide-production-cost. Calcium carbide is the most industrially relevant carbide because of its important role as the basis…
Facts at your Fingertips: Hygienic Process Equipment Fabrication
In hygienic process operations, proper system construction and fabrication has the greatest influence on end-product quality and the success of process validation. Even well-designed hygienic systems can be compromised by leaching, poor internal finishes and mishandled material sourcing and other…
Design and Calculation Methods for Uniflow Cyclones
Uniflow cyclones can be effective solid-gas separation equipment when space is limited. Presented here are design and calculation methods for uniflow cyclones aimed at widening the industrial usefulness of these devices Cyclone separators are, in addition to fabric filters, electrostatic…
Oxygen Production via Cryogenic Distillation
This column is based on “Oxygen Production – Cost Analysis,” a report published by Intratec. It can be found at: www.intratec.us/analysis/oxygen-production-cost. Oxygen is a nonmetallic element and one of the most abundant elements on Earth’s surface. Under standard pressure and…
Facts at your Fingertips: Pump Sizing Parameters
A solid grasp of pump sizing allows engineers to make effective economic and practical decisions about process pumps. This one-page reference provides information about two key parameters and other considerations for pump sizing. Pump sizing steps Sizing a pump requires…