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  2. List of chemical process simulators - Wikipedia

    en.wikipedia.org/wiki/List_of_chemical_process...

    This is a list of software used to simulate the material and energy balances of chemical process plants. Applications for this include design studies, engineering studies, design audits, debottlenecking studies, control system check-out, process simulation, dynamic simulation, operator training simulators, pipeline management systems, production management systems, digital twins.

  3. Mass balance - Wikipedia

    en.wikipedia.org/wiki/Mass_balance

    In physics, a mass balance, also called a material balance, is an application of conservation of mass [1] to the analysis of physical systems.By accounting for material entering and leaving a system, mass flows can be identified which might have been unknown, or difficult to measure without this technique.

  4. Energy profile (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Energy_profile_(chemistry)

    In theoretical chemistry, an energy profile is a theoretical representation of a chemical reaction or process as a single energetic pathway as the reactants are transformed into products. This pathway runs along the reaction coordinate , which is a parametric curve that follows the pathway of the reaction and indicates its progress; thus ...

  5. Process design - Wikipedia

    en.wikipedia.org/wiki/Process_design

    They usually include a material balance, and sometimes an energy balance, showing typical or design flowrates, stream compositions, and stream and equipment pressures and temperatures. It is the key document in process design. [1] Piping and instrumentation diagrams (P&ID): Diagrams showing each and every pipeline with piping class (carbon steel or

  6. Sankey diagram - Wikipedia

    en.wikipedia.org/wiki/Sankey_diagram

    Over time, it became a standard model used in science and engineering to represent heat balance, energy flows, material flows, and since the 1990s this visual model has been used in life-cycle assessment of products. [4] Minard's diagram of Napoleon's invasion of Russia, using the feature now named after Sankey

  7. Aspen HYSYS - Wikipedia

    en.wikipedia.org/wiki/Aspen_HYSYS

    HYSYS is able to perform many of the core calculations of chemical engineering, including those concerned with mass balance, energy balance, vapor-liquid equilibrium, heat transfer, mass transfer, chemical kinetics, fractionation, and pressure drop. [2]

  8. More O'Ferrall–Jencks plot - Wikipedia

    en.wikipedia.org/wiki/More_O'Ferrall–Jencks_plot

    These plots were first introduced in a 1970 paper by R. A. More O’Ferrall to discuss mechanisms of β-eliminations [2] and later adopted by W. P. Jencks in an attempt to clarify the finer details involved in the general acid-base catalysis of reversible addition reactions to carbon electrophiles such as the hydration of carbonyls.

  9. Material flow analysis - Wikipedia

    en.wikipedia.org/wiki/Material_flow_analysis

    The process balance is a first order physical principle that turns MFA into a powerful accounting and analysis tool. The nature of the processes in the system determine which balances apply. For a process 'oil refinery', for example, one can establish a mass balance for each chemical element, while this is not possible for a nuclear power ...