Chemical Engineering

The foundational accounting tools of chemical engineering that apply conservation laws to track every kilogram of material and every joule of energy entering, leaving, and accumulating within a process system.

The study of energy transformations and equilibrium states that governs feasibility, efficiency, and equilibrium composition of chemical processes. Chemical engineers use it to predict phase behavior, reaction spontaneity, and maximum work extraction.

The unified study of momentum transfer (fluid flow), heat transfer, and mass transfer. These three phenomena are governed by analogous mathematical equations and determine the rates at which processes occur.

The sub-discipline focused on the design and operation of chemical reactors. It combines reaction kinetics (how fast reactions occur) with transport and mixing phenomena to predict reactor performance and select optimal reactor types.

The fundamental physical and chemical steps that make up any chemical process, such as distillation, absorption, extraction, filtration, drying, crystallization, and evaporation. Each unit operation can be analyzed and designed using consistent engineering principles.

The systematic methodology for developing a chemical process from concept to detailed engineering drawings, including process flow diagrams (PFDs), piping and instrumentation diagrams (P&IDs), and equipment sizing, often aided by software simulators like Aspen Plus or HYSYS.

The engineering practice of maintaining process variables (temperature, pressure, flow rate, composition) at desired setpoints using feedback and feedforward control systems, ensuring product quality, safety, and efficiency.

The techniques used to divide mixtures into their components, which typically account for 40-70% of both capital and operating costs in a chemical plant. Key methods include distillation, membrane separation, adsorption, and chromatography.

The discipline focused on preventing catastrophic incidents in chemical facilities through hazard identification (HAZOP), risk assessment, inherently safer design, layers of protection analysis (LOPA), and safety instrumented systems.

The acceleration of chemical reactions by substances (catalysts) that are not consumed in the process. Catalysts are critical to the chemical industry, enabling reactions to occur at lower temperatures and pressures with higher selectivity.