Definition Conductivity, also known as specific conductance, refers to the ability of a material or solution to conduct electric current. It is the reciprocal of resistivity and is commonly represented by the symbol κ (kappa). In chemical and process engineering,…
Definition Water (H₂O) is a fundamental chemical substance composed of hydrogen and oxygen. It exists widely in nature and industrial systems in liquid, solid, and gaseous states. In chemical and process engineering, water is not only a natural resource but…
Overview In chemical and process industries, hazard analysis and risk assessment are two foundational elements of process safety engineering. They are used to systematically identify potential hazards in industrial systems and evaluate the associated risks to ensure safe design, operation,…
Definition New energy materials refer to a broad class of functional materials used in energy conversion, storage, and utilization systems that support renewable and low-carbon energy technologies. Unlike conventional industrial materials, new energy materials are designed to enable or improve…
Definition Degradable plastics are polymer materials designed to undergo structural breakdown under specific environmental conditions such as heat, moisture, oxygen exposure, or microbial activity. Unlike conventional plastics, which remain chemically stable for long periods, degradable plastics are engineered to reduce…
Definition Renewable feedstock refers to raw materials that originate from renewable or recoverable sources and can be reintroduced into industrial production systems. Unlike virgin fossil-based feedstocks, renewable feedstocks are derived from waste streams, recycled materials, or biomass-based resources that can…
Introduction Microreactors are widely used in flow chemistry, continuous processing, and process intensification where precise mixing, heat transfer, and residence-time control are important. However, suppliers differ in reactor design, materials, throughput, scale-up methods, and process integration. This comparison includes dedicated…
Choosing among PLA manufacturers requires more than comparing resin prices or production capacity. Industrial buyers should evaluate grade availability, processing compatibility, batch consistency, technical support, and supply reliability. A practical selection path is: Application → Required Properties → PLA Grade…
The short answer is this: transitioning high-performance polymer production to continuous processing is not as simple as replacing a batch reactor with a continuous reactor. The real challenge is aligning reaction kinetics, material viscosity, heat generation, devolatilization, and process control…
Packed Columns vs. Tray Columns Both packed columns and tray columns are widely used for gas–liquid mass transfer operations such as distillation and absorption. Selecting the most suitable column requires evaluating multiple factors, including feed properties, operating conditions, equipment fabrication,…