Optimisation of Design and Operation Parameters for Multicomponent Separation via Improved Lewis-Matheson Method
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Ching Ching Tiong
und
Jobrun Nandong
Abstract
Distillation is the most commonly used separation and purification technique in the chemical and allied industries despite that it has been known as the most energy-consuming unit in process industry. The need to reduce this energy consumption has become one of the important focuses in the efficient design and optimization of distillation processes. In the present work, we propose an improved Lewis-Matheson stage-by-stage procedure by incorporating the Fenske equation to enhance the estimation of the non-key component distributions, and thus avoiding infeasible solutions to the stage-by-stage system of equations of mass and energy balances. A modified theta method is also included in the design procedure to satisfy the feed stage matching criteria which help reduces the computational time while increasing the accuracy of feed composition matching. By using the proposed modified Lewis-Matheson method, an optimization is conducted in Matlab environment where the problem formulation takes into account both sets of design and operating parameters with specified product purity as the constraint. The objective function of the optimization is to minimize the Total Annualized Cost (TAC), which includes both capital and operating costs. The effectiveness of the proposed design procedure is demonstrated using an industrial-scale natural gas liquids (NGLs) depropanizer fractionation unit.
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Artikel in diesem Heft
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Artikel in diesem Heft
- Editorial
- Editorial: Special Issue of 29th Symposium of Malaysian Chemical Engineers (SOMChE) 2016 – Process System Engineering
- Research Articles
- Effect of Inventory Change in a Liquid – Solid Circulating Fluidized Bed (LSCFB)
- Simulation and Optimization of the Utilization of Triethylene Glycol in a Natural Gas Dehydration Process
- Development of Adaptive Soft Sensor Using Locally Weighted Kernel Partial Least Square Model
- Comparison of Turbulence Models for Single Sphere Simulation Study Under Supercritical Fluid Condition
- Integrated Palm Biomass Supply Chain toward Sustainable Management
- Multi-Scale Control of Bunsen Section in Iodine-Sulphur Thermochemical Cycle Process
- Optimisation of Design and Operation Parameters for Multicomponent Separation via Improved Lewis-Matheson Method
- The Effect of Various Components of Triglycerides and Conversion Factor on Energy Consumption in Biodiesel Production
- CFD Simulation on the Hydrodynamics in Gas-Liquid Airlift Reactor
- Analysis of the Steady-State Multiplicity Behavior for Polystyrene Production in the CSTR
- Numerical Studies on the Laminar Thermal-Hydraulic Efficiency of Water-Based Al2O3 Nanofluid in Circular and Non-Circular Ducts
- Simultaneous Carbon Capture and Reuse Using Catalytic Membrane Reactor in Water-Gas Shift Reaction
