1、PROCEEDINGS OF SPIE
Aspen Plus [4] software is utilized to simulate and optimize the process flow shown in Figure 1[5]. Due to the complex electrolyte equilibrium and gas-liquid equilibrium, the NRTL physical...
2、Purification Process Design of Vinyl Acetate Based on Aspen Plus
By using Aspen Plus simulation software and selecting suitable model and physical property method, the main separation equipment in the purification process of vinyl acetate is simulated and optimized, and the simulation separation results are good and the product purity is high.
3、基于Aspen Plus醋酸乙烯精馏塔的模拟优化
讨论了进料位置、回流比、塔顶侧线采出量等参数对精馏分离精度与能耗的影响,提出优化方案为:进料板为第62块,回流比为32,侧线采出质量流量为37.5 t/h。 此参数下,重新进行计算,结果显示,塔顶冷凝器和塔釜再沸器的热流量分别降低了15.5%和16.9%,塔顶侧线采出液中醋酸乙烯和塔釜采出液中醋酸的质量分数分别上升了0.4%和0.13%。
4、Vinyl Acetate from ethylene, acetic acid and oxygen Industrial Plant
In this work, a detailed study was made based on a simulation of the process using the Aspen Plus v2006 program and establishing the correct operation conditions. The simulated process involves, from the preparation of the raw materials until the dehydration of the monomer.
Purification Process Design of Vinyl Acetate Based on
Based on Aspen Plus process simulation, the purification stage of the production of vinyl acetate by 450000 tons of calcium carbide acetylene process was optimized.The main equipment involved in the process are degassing tower, deacetaldehyde tower, crude separation tower, vinyl acetate refining tower, acetic acid distillation column and so on.
Simulation of the Vinyl Acetate Process Using Aspen
By using Aspen Plus simulation software and selecting suitable model and physical property method, the main separation equipment in the purification process of vinyl acetate is simulated and optimized, and the simulation separation results are good and the product purity is high.
Optimization and simulation of vinyl acetate process based on Aspen Plus
Vinyl acetate is a bulk chemical consumed by millions of tons annually. It has a wide range of uses and broad development prospects, but also means that there is a large space for improvement in the application of advanced technology.
Optimization and simulation of vinyl acetate process based on Aspen Plus
Consulting actual plant conditions by means of computer simulation, the parameters and reaction conditions for a fixed bed reactor used to produce vinyl acetate in acetylene method were...
Design and Optimization of Acetic Acid Dehydration Processes
In this work, some separation designs that with high potential for energy saving for dehydration of acetic acid, such as multi-effect distillation, azeotropic distillation, and liquid-liquid extraction, etc., are investigated and analyzed in detail.
Process Simulation and Optimization of Vinyl Acetate Monomer Recovery
The main equipment in the vinyl acetate monomer recovery unit of the polyvinyl alcohol plant was simulated using Aspen Plus software. The RadFrac module was employed for the distillation tower, and the Decanter module for the phase separator.
I. Introduction to Aspen Plus In the field of chemical engineering, simulation experiments are a critical research tool that enable in-depth understanding of chemical reaction mechanisms. Aspen Plus, a powerful process simulation software, provides a platform for modeling the dehydration of vinyl acetate. This article introduces how to use Aspen Plus to simulate this process.
II. Overview of Vinyl Acetate Dehydration Vinyl acetate is a vital organic compound widely used in plastics, coatings, adhesives, and other industries. Dehydration is a key step in its production, aimed at removing water molecules to improve product purity and quality. side reactions such as polymerization and isomerization often occur during dehydration, negatively impacting product quality and increasing costs. Effectively controlling these side reactions is a pressing challenge in industrial production.
III. Aspen Plus Simulation of Vinyl Acetate Dehydration To simulate the dehydration process in Aspen Plus, follow these steps:
- Define Components and Physical Properties: Select appropriate components (e.g., vinyl acetate, water) and input physical properties like molar mass, density, and viscosity.
- Build the Reactor Model: Choose a suitable reactor type (e.g., fixed-bed or moving-bed reactor) and set operational parameters (temperature, pressure, liquid-gas ratio).
- Add Separation Units: Incorporate units like distillation or extraction columns to separate water and impurities.
- Set Boundary Conditions: Specify feed/output flow rates and material balances based on real-world processes.
- Run the Simulation: Analyze reaction behavior and product distribution under different conditions to optimize parameters.
IV. Analysis of Simulation Results Key findings from the Aspen Plus simulation include:
- Operational Optimization: Lowering reaction temperatures and increasing catalyst dosage improve dehydration efficiency while reducing side reactions.
- Enhanced Separation: Refining separation unit design (e.g., optimizing distillation column parameters) minimizes water and impurity losses.
- Quality Improvement: Adjusting feed/output conditions and operational parameters elevates product quality to meet market demands.
Aspen Plus simulation offers a scientific approach to understanding and optimizing vinyl acetate dehydration. By refining operational conditions and separation processes, it reduces side reactions, enhances product quality, and boosts efficiency. Future research will explore further applications of Aspen Plus to advance chemical engineering solutions.
Notes:
- Terminology (e.g., "fixed-bed reactor," "distillation column") follows standard chemical engineering conventions.
- Formatting adheres to academic standards, with clear section headings and concise technical descriptions.
- Key insights from the simulation (e.g., temperature optimization, catalyst usage) are highlighted for practical relevance.
