Ethylbenzene feed is mixed with recycled ethylbenzene, heated, and then mixed with high-temperature, superheated steam. Selected alkylation and trans-alkylation reaction kinetics were validated using plant data. Figure 1 shows the flow diagram of the production process. The reactions, the kinetics, and the equilibrium equations are detailed in Appendix 1. Two product separation schemes, namely, conventional columns and DWC were studied. Several configurations for alkylation and trans-alkylation reactors were explored. € POS/2¦äŠ Ü Vcmap;ïÇ. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. https://doi.org/10.1016/j.cherd.2016.10.046. Looks like you’ve clipped this slide to already. Objectives selected for sensitivity analysis are net present value, total capital investment and benzene loss. Finally, heat integration and sensitivity analysis were conducted for both EB designs. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Sensitivity analysis of NPV with respect to 24 DVs for ethyl benzene process with conventional distillation columns. Conversion ..... STYRENE BY ETHYLBENZENE DEHYDROGENATION--REACTOR WITH TWO ADIABATIC STAGES (For Patent Summary, Stream Flows, and Summary of Waste Products, See Section 6) STYRENE FROM ETHYLBENZENE BY HYDROPEROXIDE PROCESS Production Costs, at 70% Conversion ..... Production Costs, at 60%. •gü endstream endobj 1165 0 obj 378 endobj 1166 0 obj << /Type /FontDescriptor /FontName /PFKOLB+Wingdings /Flags 4 /FontBBox [ -250 -300 1680 900 ] /MissingWidth 500 /StemV 164 /StemH 164 /ItalicAngle 0 /CapHeight 900 /XHeight 630 /Ascent 900 /Descent 300 /Leading 200 /MaxWidth 1400 /AvgWidth 900 /FontFile2 1168 0 R >> endobj 1167 0 obj << /Type /Font /Subtype /TrueType /Name /F0 /BaseFont /Arial,Bold /Encoding /WinAnsiEncoding >> endobj 1168 0 obj << /Length 1185 0 R /Length1 1184 0 R /Length2 1181 0 R /Length3 1183 0 R >> stream The work deals with optimization of the process of production of ethylbenzene by liquid-phase benzene alkylation. See Table 4 for the significance of each DV on the x-axis. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. DWC is integrated into the EB process, and its performance is compared with the base case of utilizing only conventional columns for downstream separation. Results show that integrating DWC is not only viable but also offers potential to reduce capital investment, decrease benzene loss and increase profit compared to a conventional column design for the EB process. See our Privacy Policy and User Agreement for details. There are many processes to convert ethylene and benzene into ethyl benzene. Benzene is alkylated with ethylene in the presence of a crystalline zeolite catalyst to produce ethylbenzene and polyethylbenzenes. If you continue browsing the site, you agree to the use of cookies on this website. If you continue browsing the site, you agree to the use of cookies on this website. Clipping is a handy way to collect important slides you want to go back to later. Now customize the name of a clipboard to store your clips. Subsequently, sensitivity analysis is performed on both EB designs for a number of design variables. Downstream separation in the ethyl benzene (EB) production is energy intensive due to the use of multiple distillation columns. The liquid-phase EBOne process uses a fixed-bed zeolite catalyst system and represents a major technological step change from older vapor phase EB technologies. If you wish to opt out, please close your SlideShare account. Scribd will begin operating the SlideShare business on December 1, 2020 production of intermediate ethylbenzene (EB) and styrene monomer (SM), respectively. At least a portion of the diethylbenzene fraction is recycled to the alkylation zone while the remainder thereof plus the higher polyethylbenzenes are subjected to transalkylation with benzene in a separate transalkylation zone to produce additional ethylbenzene. The catalyst provides a run-length of three to five years, thus eliminating the need for regeneration equipment. Learn more. Ethylbenzene is an organic compound with the formula C 6 H 5 CH 2 CH 3.It is a highly flammable, colorless liquid with an odor similar to that of gasoline.This monocyclic aromatic hydrocarbon is important in the petrochemical industry as an intermediate in the production of styrene, the precursor to polystyrene, a common plastic material. All simulations are performed using Aspen HYSYS, and design data used is appropriately validated for realistic simulation. We use cookies to help provide and enhance our service and tailor content and ads. Ethylene reacts with ethylbenzene to form undesired product di-ethyl benzene, if the temperatures of reactor or concentrations of ethylene are high. This presentation include manufacture of ethyl benzene, its uses and application. Applications There are many applications of ethyl benzene… Some of them are… 1. paints 2. lacquers 3. printing inks 4. insecticides 5. solvents Figure 1-Badger Process For Ethyl Benzene Synthesis Process Description The process flow diagram is shown in Figure 1. As of this date, Scribd will manage your SlideShare account and any content you may have on SlideShare, and Scribd's General Terms of Use and Privacy Policy will apply. One of them is Badger process. Published by Elsevier B.V. All rights reserved. You can change your ad preferences anytime. An improved, realistic and complete ethyl benzene (EB) process has been developed. Copyright © 2020 Elsevier B.V. or its licensors or contributors. See our User Agreement and Privacy Policy. In the present study, a typical industrial EB process including reaction, separation and heat exchangers, is first simulated rigorously and modified to improve the efficiency and performance of both individual units and the overall plant. Photocatalytic degradation of some organic dyes under solar light irradiation... Benzaldehyde market is expected to increase by usd of 21 billion by 2022, Isothermal Reactor Design - Reactor Engineering, No public clipboards found for this slide.
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