Engineering development of slurry bubble column reactor sbcr. Performance testing of hydrodesulfurization catalysts using a singlepelletstring reactor dedicated to professor ru. The hydrodesulfurization hds processes research requires a lot of. With so many changes over the last few decades in equipment and processes, petroleum refining is almost a living document, constantly needing updating. The design and optimization of a hydrodesulfurization process. The kinetic model was included in the developed software. Combining theorybased engineering technologies in project management, incremental development, software specification and design, correctness verification, and statistical quality. In an industrial hydrodesulfurization unit, such as in a refinery, the hydrodesulfurization reaction takes place in a fixedbed reactor at elevated temperatures ranging from 300 to 400 c and elevated pressures ranging from 30 to atmospheres of absolute pressure, typically in the presence of a catalyst consisting of an alumina base. The natural gas condensates are composed of various components of hydrocarbons and some contaminants such as hydrogen sulfide, thiols mercaptans, and aromatics. The designer must take care to ensure that the enthalpy of reaction and the heat capacities used by the simulator are sufficiently accurate for design purposes. Diesel hydrodesulfurizationhydrogen generation units. Performance testing of hydrodesulfurization catalysts using a. The overall objectives of this thesis study were to investigate the effects of catalyst properties on hydrodesulfurization activity, hydrogenation activity, and to investigate the effect.
Mole balances in terms of conversion design structure for isothermal reactors scaleup of liquidphase batch reactor data to the design of a cstr design of continuous stirred tank reactors cstrs tubular reactors pressure drop in reactors synthesizing the design of a chemical plant. Ekerdt this is a chemical engineering textbook for undergraduate and graduate students in reactor design and reaction engineering courses. Simulation of hydrodesulfurization trickle bed reactor in. In general, the optimal design of a hydrodesulfurization process is a nonlinear and. This study concerns the desulfurization of the natural gas condensate of south pars field of iran along with the elimination of disulfide oils of south pars refinery, through hydrodesulfurization approach, which is simulated using aspen plus software.
Study on hydrodesulfurization of a mixture of middle. These included crude distillation, vacuum distillation, naphtha stabilizer. There is a renaissance that is occurring in chemical and process engineering, and it is crucial for todays scientists, engineers, technicians, and operators to stay current. The analysis was based on experimental information obtained in a small hydrodesulfurization reactor using straightrun gas oil as feed and a trilobular commercial catalyst sample at typical. Now, fogler has created a new, completely updated fifth edition of his internationally respected book. While the classic elements of chemical reaction engineering, fourth edition, is still available, h. Hydrotreating, hydrodesulfurization, and hydrocracking are operations in which hydrogen is used to saturate the olefins in a hydrocarbon stream. Bidholi via prem nagar, dehradun 248007, india email address. This design guideline covers the basic elements in the field of hydro treating in sufficient detail to allow an engineer to design a hydro treater with the suitable process parameters. The hydrotreatment reactor for hydrodesulfurization was design on an excel spreadsheet and linked with dwsim. After leaving the feedeffluent heat exchangers, the effluent stream is further cooled and enters a separation drum where the gas stream is separated from the liquid stream. Refinery software solutions boost profitability flow. Simulation of hydrodesulfurization unit for natural gas. Research catalysts maintains inventory in our own warehouse facilitating timely delivery, and we repackage as necessary to deliver whatever quantity the customer needs and not more.
This study concerned the simulation of an ultradeep hydrodesulfurization udhds unit plus a distillation section to treat a combination of gas condensate and. It also explains the processes that produce raw materials for the petrochemical industry. Hydrodesulfurization hds is a process in which hydrocarbon fuels are heated, mixed with hydrogen and fed to a reactor packed with particulate catalyst. Essentials of chemical reaction engineering is a complete yet concise. Mathematical modelling of diesel fuel hydrodesulfurization kinetics krivtcova n. Scott foglers elements of chemical reaction engineering has been the worlds dominant text for courses in chemical reaction engineering. The major technical objectives of this program are threefold. The feed mixture then flows through the fixedbed catalyst in the reactor where the hydrodesulphurization reaction occurs. Multiobjective optimization of a hydrodesulfurization. Designsimulationmodelling of a triple bed hydrodesulfurization reactor in fortran. Hydrodesulfurization of fuel oil posted in refining, hydrocarbons, oil, and gas.
Multiobjective optimization of a hydrodesulfurization process. Pdf design and implementation of a simulator for the hydro. Essentials of chemical reaction engineering 2nd edition. Hydrodesulfurization of crude oil over como catalysts in a. Chemical reactor analysis and design fundamentals james blake rawlings, john g. The hydrotreatment reactor for hydrodesulfurization was design on an. Model and simulation of a hydrotreatment reactor for. Todays definitive, undergraduatelevel introduction to chemical reaction engineering problemsolving for 30 years, h. Petroleum refining design and applications handbook wiley.
You have been assigned the task of designing a reactor for the hydrodesulfurization reaction. The heating or cooling duty of the reactor is usually most easily estimated using commercial process simulation software. Use of computational chemistry software packages 749. Model and simulation of a hydrotreatment reactor for diesel. Hydrodesulfurization an overview sciencedirect topics.
Since hydrodesulfurization is strongly limited by hydrogen sulfide, the chemical reaction. Slurry bubble column reactor design in hydrodesulfurization. It is primarily a knowledge of chemical kinetics and reactor design that distin guishes the chemical engineer from other engineers. They were designed for engineers to do preliminary designs and process specification sheets. The implementation of advanced process control strategies and software resulted in significant reduction in variations in key parameters at a mumbai refinery. Burst by hydrogen attack of residue hydrodesulfurization unit.
Effects of space velocity and length of reactor on the conversion rate and catalyst effectiveness for hds process have been investigated. The reactor model considers the main reactions present in the hydro desulfurization process. In order to obtain useful models for hds process that can be confidently applied to reactor design, operation and control, the accurate estimation of kinetic parameters of the. Event the process fluid, including high temperature high pressure hydrogen, flows to the main piping from the reactor exit to the separator. Bpcl used deployed engineering services and software to design, implement and maintain multiple inputoutput mimo apc applications in various refinery units. The hydrogen feed is regulated by the automatic dispenser. Slurry bubble column reactor design in hydrodesulfurization process sajjad porgar on. Elements of chemical reaction engineering, fifth edition. Chemical reactor analysis and design fundamentals james. The definitive, fully updated guide to solving realworld chemical reaction engineering problems.
Elements of chemical reaction engineering in searchworks. Model and simulation of a hydrotreatment reactor 1249 in order to decrease costs in process, it was design a hydrogen separation step through a fast cooling with a flash separator for the reactor outlet stream. Hydrodesulfurization hds of crude oil has not been reported widely in the literature and it is one of the most challenging tasks in the petroleum refining industry. Modeling of trickle bed reactor for hydrotreating of. Temperature and lhsv program as executed as a function of time on stream. Furthermore, the residence time inside the reactor was 4. Performance testing of hydrodesulfurization catalysts using a single. Kinetic parameter estimation and simulation of tricklebed. Thus, it is an essential step in the production of clean fuels. Tricklebed reactors tbr are widely used in petroleum refineries for. Desulfurization of fuels is commonly achieved by catalytic hydrodesulfurization hds, in which the organic sulfur species are converted to h 2 s and the corresponding hydrocarbon, as in the following reaction. Links to additional software, including polymath, matlab, wolfram mathematica, aspentech, and comsol multiphysics. Hydrodesulfurization encyclopedia article citizendium.
The reactor of this pilot plant is a 400 cm3 vessel which can. In these processes, fresh hydrogen is fed to the reactor, and unconsumed hydrogen is separated from the reactor effluent and recycled back to the reactor. For the reactor model, it was used the tables 1 and 3. Analysis of sulfur removal in gasoil hydrodesulfurization.
I have searched much about operating conditions of fuel oil hydrodesulfurization unit but i have not been successful. Hydrodesulfurization hds is a catalytic chemical process by which sulfur s is removed from natural gas and from refined petroleum products like petrol, jet fuel, kerosene, diesel fuel and fuel oils in the form of hydrogen sulfide or sulfur dioxide. Nonisothermal reactor designthe steadystate energy balance and adiabatic pfr applications 515. This study aimed to investigate the feasibility of hydrodesulfurization hds of a mixture of crude oil fractions e. The heat of the stream leaving the reactor effluent stream is recovered via the heat exchangers. Create process flow diagram examples like this template called oil refining hydrodesulphurization that you can easily edit and customize in minutes. Buy slurry bubble column reactor design in hydrodesulfurization process by porgar, sajjad isbn. Introduction hydrodesulphurization hds is a catalytic chemical process widely used to remove sulfur s from natural gas and from refined petroleum products such as gasoline or petrol, jet fuel, kerosene, diesel fuel, and fuel oils. With the actual configuration of the reactor, it was reached a maximum of 83. The diesel fuel fraction and hydrogen are fed to the reactor from top to bottom. Hydrodesulfurization hydrodesulfurization hds or hydrotreating is a catalytic chemical process widely used to remove sulfur compounds from refined petroleum products such as gasoline or petrol, jet fuel, diesel fuel, and fuel oils. In general, the optimal design of a hydrodesulfurization. Mar 10, 2020 there are a number of hydrodesulfurization catalysts, but the one most commonly used consists of molybdenum sulfide, which contains cobalt on an aluminum oxide base.
Fogler, essentials of chemical reaction engineering, 2nd. Hui shang 1, pengfei ye 1, yude yue 1, tianye wang 1, wenhui zhang 1, sainab omar 2, jiawei wang 2 1. New edition includes strong coverage of unsteadystate, nonisothermal reactor design, and the molecular understanding of chemical reactions. The design and optimization of a hydrodesulfurization process involve the selection of the configuration and the operating conditions to minimize the total annual cost, co2 emissions, and the amount of sulfur compounds. Processes include hydrocracking, hydrotreating, hydrodesulfurization, and catalytic reforming. Provides a holistic approach to multiphase catalytic reactors from their modeling and design to their applications in industrial manufacturing of chemicals covers theoretical aspects and examples of fixedbed, fluidizedbed, tricklebed, slurry, monolith and microchannel reactors includes chapters covering experimental techniques and practical guidelines for labscale. The combined feedstock is preheated via heat exchanger, and then further heated in a fired heater until the feed mixture is vaporized and heated to the operating temperature of the reactor. The hydrodesulfurization of dibenzothiophene on a commercial comoalsub 2osub 3 catalyst was studied in a multiphase reactor. The aim of this article is to acquaint the reader with the interaction between reactor designselection and the characteristics of the chemical reaction of. A steady state plugflow heterogeneous onedimensional model was employed to implement the hds simulator. Learn chemical reaction engineering through reasoning, not memorization essentials of chemical reaction engineering is a complete yet concise, modern introduction to chemical reaction engineering for undergraduate students. Kinetic parameter estimation and simulation of tricklebed reactor for hydrodesulfurization of crude oil. Design parameters for a hydro desulfurization hds unit.
This reactor had quench streams of hydrogen between beds as. Architecture and design arts asian and pacific studies business and. When products inhibit the reaction, the countercurrent operation is expected to have an advantage over the cocurrent operation. Research catalysts maintains inventory in our own warehouse facilitating timely delivery, and we repackage as necessary to deliver whatever quantity the. Simulations were performed for a pilot trickle bed reactor, and the results are discussed in terms of variations with axial. The distillation with side reactor has been proposed to remove sulfur compounds of diesel. Essentials of chemical reaction engineering edition 2 by. Hydrodesulfurization hds is a catalytic chemical process widely used to remove sulfur s from natural gas and from refined petroleum products, such as gasoline or petrol, jet fuel, kerosene, diesel fuel, and fuel oils. A hydrotreating study was conducted in a benchscale hydroprocessing reactor, over a wide range of operating conditions of industrial interest, to look in detail at hydrodesulfurization hds. Essentials of chemical reaction engineering informit. In the present study, it has been assumed that the primary design of sulfur.
The main objective of this work is to design and implement a software for analysis and simulation of hds reactions in a 1behnam. Multiobjective optimization of a hydrodesulfurization process of. Hydrodesulfurization of vacuum gas oil in a trickle bed reactor was. Your supervisor at kleen petrochemical wishes to use a hydrodesulfurization reaction to produce ethylbenzene from a process waste stream. Analysis of sulfur removal in gasoil hydrodesulfurization process by application. Design of reaction process and catalysts isao mochida, kinya sakanishi, xiaoliang ma, shinichi nagao, takaaki isoda institute of advanced material study, kyushu university, kasuga, fukuoka 816, japan abstract deep hydrodesulfurization hds of diesel fuel oil was designed based on the. The deep desulfurization of oil fraction is a central matter of concern to every refinery. The purpose of removing the sulfur, and creating products such as ultralowsulfur diesel, is to reduce the sulfur dioxide so 2 emissions that result from using those fuels. Introduction reactor and reaction engineering play a vital role in petroleum and chemical processing. Hydrodesulfurization hds or hydrotreating is a catalytic chemical process widely used to remove sulfur compounds from refined petroleum products such as gasoline or petrol, jet fuel, diesel fuel, and fuel oils. It brings together chemical engineering researchers, practitioners, and software developers in a new.
Voc, voc testing, voc abatement, air pollution control, r3. Mohammad assir al neelain university chemical engineering department. Elsevier catalysis today 29 1996 185189 catalysis today i deep hydrodesulfurization of diesel fuel. Our expertise in designing purification systems is extensive, and the software we use is proprietary and unique. The operating conditions were varied over the following range. Designsimulationmodelling of the distillation columns and the boiler in tomato paste production process, via aspen plus 7 software. Mathematical modelling of diesel fuel hydrodesulfurization.
Advances in clean hydrocarbon fuel processing, 2011. Design parameters for a hydro desulfurization hds unit for. Simulation of hydrodesulfurization unit for natural gas condensate. Handbook of refinery desulfurization describes the operation of the various desulfurization process units in a petroleum refinery.
Now, in essentials of chemical reaction engineering, second edition, fogler has distilled this classic into a modern. These included crude distillation, vacuum distillation, naphtha stabilizer, hydrogen generation, hydrocracker and lube oil separation. Modeling of trickle bed reactor for hydrotreating of vacuum gas oils. Design and implementation of a simulator for the hydro. This study concerned the simulation of an ultradeep hydrodesulfurization udhds unit plus a distillation. Pavlos gkinis national technical university of athens. The result is a refined book that contains new examples and problems, as well as an updated companion web site.
Hydrodesulfurization of dibenzothiophene on a comoalsub. A suitable numerical program with a userfriendly interface was written for this. Hydrodesulfurization of fuel oil refining, hydrocarbons. Pearson elements of chemical reaction engineering, 5e. Catalysts, fixed bed, hydrodesulfurization, reactors, singlepellet string. Essentials of chemical reaction engineering, 2nd edition. Chemical kinetics and reactor design are at the heart of producing almost all industrial chemicals, such as the manufacture of phthalic anhydride shown in figure 11. Stainless steels 20b, sus321 were used for this main piping.
This study aimed to investigate the feasibility of hydrodesulfurization. Temperature and lhsv program as executed as a function of time on. Branch piping 1,300mm in length of same material 6b, sus321 had been installed horizontally in the main. The hydrodesulfurization hds process is used to remove environmentally harmful sulfur from 2500 million tons of oil annually 1. Hydrogen sulfide is the product of hydrodesulfurization reaction and it is the inhibiter of the reaction. Baloochi is with research institute of petroleum industries. Part of this hydrogen was recirculated to the process, so that reduce greatly the quantity of makeup. Hydrodesulfurization hdsis a catalytic chemical process that widely used to remove sulfur from refined petroleum products such as gasoline or petrol. Experimental and theoretical study of microwave enhanced.
Since hydrodesulfurization is strongly limited by hydrogen sulfide. Hydrodesulfurization of dibenzothiophene on a comoalsub 2o. Thus, the natural gas condensates could be considered as a fuel resource. In order to obtain useful models for hds process that can be confidently applied to reactor design, operation and control, the accurate estimation of kinetic parameters of the relevant reaction scheme are required. Here r represents an alkyl group, such as methyl ch 3, or ethyl c 2 h 5.
Finally, section 4 explains the software architecture used for this model in order to assure its availability in different simulation platforms. Simulation of hydrodesulfurization trickle bed reactor. Apr 29, 2015 the natural gas condensates are composed of various components of hydrocarbons and some contaminants such as hydrogen sulfide, thiols mercaptans, and aromatics. Pdf hydrodesulfurization unit for natural gas condensate. The main objective of this work is to design and implement a software for analysis and simulation of hds reactions in a.
Engineering development of slurry bubble column reactor. The h 2 s flows out of the reactor, along with excess hydrogen, and into a treatment unit where it is separated out, allowing the hydrogen to be recycled through the process. Pressure vessel cylindrical thickness calculation calculates thickness based on asme sec viii div 1, div 2 for a cylindrical pressure vessel for carbon steel cs, killed carbon steel kcs, stainless steel ss, ss304, ss316 metallurgy. Study on hydrodesulfurization of a mixture of middle distillates. In section 3 the reactor model formulation is explained, the kinetics of which are based on elementary reaction steps derived from the feedstock recharacterization. The definitive, fully updated guide to solving realworld chemical reaction engineering problems for decades, h.
The feed is supplied with the high pressure dosing pump. In addition, two dimensional modeling of the first bed of the reactor was. Hydrodesulfurization of diesel in a slurry reactor. Teaches chemical reaction engineering through logic and living example problems, not memorization. Experimental and theoretical study of microwave enhanced catalytic hydrodesulfurization of thiophene in a continuousflow reactor. In addition, twodimensional modeling of the first bed of the reactor was. Handbook of refinery desulfurization crc press book. Abstractin this paper, hydrodesulfurization hds of crude oil in the threephase slurry reactor over cobalt molybdenum catalyst como.
1413 396 52 894 379 922 535 1328 402 1049 721 408 178 654 1221 1075 1370 566 628 582 1547 393 738 558 969 34 865 1265 1056 1093 531 290 292 306