A comparative study for the simulation of industrial naphtha reforming reactors with considering pressure drop on catalyst jamshid behin1, hamid reza kavianpour2 1department of chemical engineering, faculty of engineering, razi university, kermanshah, iran, email. Performance testing of naphtha reforming catalysts c atalytic naphtha reforming, in which low octane naphtha feedstock is converted into high octane reformate, is one of the core processes in modern refineries. Our sim reactor suite is a leading oil and gas refinery simulation software offering rigorous and trusted refinery and petrochemical reactor models. Ali shaeri is a student in phd passed general exam and working in nioec as a senior process engineer. The results show models are in fair agreement with the actual operating data. Apr 02, 2014 molecular modelling of naphtha catalytic reforming. Mathematical modeling of an industrial naphtha reformer with. Catalytic naphtha reforming, petrosim, modeling, simulation 1. Petrosim user guide, kbc advanced technologies, kbc profimatic. This process produces a highoctane liquid product that is rich in aromatic compounds1,2. Catalytic reforming unit ccr optimization the use of simple. Modeling hydrotreating, semiregenerative catalytic reforming, continuous catalyst regeneration, and light naphtha etherification units by proii simulation software.
Study of industrial naphtha catalytic reforming reactions via. Modelling, simulation and sensitivity analysis of naphtha. Catalytic reforming is a chemical process used to convert petroleum refinery naphthas distilled from crude oil typically having low octane ratings into highoctane liquid products called reformates, which are premium blending stocks for highoctane gasoline. Molecular modelling of naphtha catalytic reforming. Simulation of a naphtha catalytic reforming complex, chemie. The problem of developing a kinetic model for the whole naphtha was partitioned by first studying c6 reforming marin and froment, 1982, and then c7 reforming van trimpont, marin and froment, 1988. Dynamic modeling and simulation of catalytic naphtha. The new kinetic model utilizes lumped representation of the reactions that take place. It is most usually desulfurized and then catalytically reformed, which rearranges or restructures the hydrocarbon molecules in the naphtha as well as breaking some of the molecules into smaller molecules to produce a highoctane component of gasoline or petrol. Page 1 steam reforming of natural gas at petroleum refining facilities is the predominant means of producing hydrogen in the chemical process industries cpi. Modeling, simulation and optimization of a whole industrial catalytic naphtha reforming process on aspen plus platform1 1 supported by the national natural science foundation of china no.
Study of industrial naphtha catalytic reforming reactions. Refinery simulation software our sim reactor suite is a leading refinery simulation software which carries out rigorous refinery and petrochemical reactor models. The effect of feed characterization on naphtha reformer. The reaction is strongly endothermic consumes heat. Index termscatalytic reforming, dynamic modeling, simulation, naphtha i. Where ccr units are run to have excess catalyst regeneration capacity, then suboptimum heavy naphtha feeds for example from the fcc unit can be run or mixed with conventional straightrun naphtha, resulting. Naphtha hydrotreating is an essential step for refiners to produce cleaner gasoline from different feedstocks. The calculated effluent composition of a reformer always needs to be checked against the equilibrium constant equations to ensure that simulations agree with known values. Simulation the continuous catalytic reforming octanizer unit of arak. Light gas and liquefied petroleum gas lpg are also produced as byproducts3,4. Modeling and simulation of four catalytic reactors in. Several issues are widely concerned in reformer performances. Modelling the reforming units of galp energia the modelling and simulation of the reforming units of galp energia uses a very rigorous simulator for petrochemical processes called petrosim, licensed by kbc advanced technologies. Please guide me on how to simulate a steam naphtha based.
Simulation of primary reformer in aspen hysys chemical. Simulation of catalytic naphtha reforming of tehran refinery. Simulation of primary reformer in aspen hysys posted in chemical process simulation. Hougenwatson langmuirhinshelwood type reaction rate expressions are used to represent rate of each reaction. Molecular modeling of naphtha catalytic reforming aiche. May 01, 2010 product gas from the steam reforming of the methane and naphtha contains equilibrium amounts of hydrogen, carbon dioxide, carbon monoxide and excess steam. Petroleum naphtha is an intermediate hydrocarbon liquid stream derived from the refining of crude oil with casno 64742489.
Mathematical modeling of an industrial naphtha reformer. Catalytic reforming requires a whole range of other processing units at the refinery apart from the distillation tower, a naphtha hydrotreater, usually an isomerization unit to process light naphtha, an aromatics extraction unit, etc. Naphtha cracker unit deploys aspen hysys arc advisory. Simulation of catalytic reforming units and construction of.
Experimental optimization and reactor simulation of coal. It simulates most reforming furnace types such as up, down, or side fired rectangular and cylindrical types, as well as terrace wall. Hysys refinery user guide, kbc advanced technologis, kbc profimatic. Modeling and simulation of industrial continuous naphtha. The process converts lowoctane linear hydrocarbons paraffins into branched alkanes isoparaffins and cyclic naphthenes, which are. Steam reforming or steam methane reforming is a method for producing syngas hydrogen and carbon monoxide by reaction of hydrocarbons with water. Arani 2010 simulated a dynamic model of the catalytic naphtha reformer process by matlab software. Proceedings of the fifth world petroleum congress, 1959.
Dynamic modeling and simulation of a naphtha catalytic reforming. The results are validated by operating data, which is taken from the esfahan oil. Simulation in steadystate and transient state was carried out by using matlab software. Because the major reforming reactions are endothermic, temperature reduction of the feed stream causes.
Process description the reforming process modeled in this paper starts with the feed which is straight run naphtha passes through hydrotreater. After simulation of catalytic naphtha reforming by hysysrefinery which shown in figure 2, to evaluate the simulator, the operating data of tehran refinery for four months gathered which has been presented in table 3. Steady state and dynamic modelling and simulation of catalytic reforming unit of. Please guide me on how to simulate a steam naphtha based primary reformer of an ammonia plant in aspen hysys. In addition to its role in gasoline production, the ccr platforming process is a reliable, continuous source of highpurity hydrogen. The naphtha hydrotreating process is also important to pretreat naphtha for downstream units, like paraffin isomerization and catalytic reforming, where severe specifications are required and catalysts used are very sensitive to impurities. The catalytic reforming unit by using hysysrefinery software was simulated. Modeling catalytic naphtha reforming process using discrete. Catalytic reforming of heavy naphtha, analysis and simulation diyala journal of engineering sciences, vol. Liang kemin, guo haiyan, pan shiewei, a study on naphtha catalytic reforming reactor simulation and analysis, journal of zhejiang university science, 2005 6b6. Catalytic naphtha reforming, modeling, simulation, kinetic, discrete lumping catalytic naphtha reforming unit is the heart of modern refineries. Jun 01, 2001 simulation of a naphtha catalytic reforming complex simulation of a naphtha catalytic reforming complex rodriguez, m sciamanna, r sandoval, i. The results are validated by operating data, which is taken from the esfahan oil refinery catalytic reforming unit.
The problem of developing a kinetic model for the whole naphtha was partitioned by first studying c6reforming marin and froment, 1982, and then c7reforming van trimpont, marin and froment, 1988. After preparing test runs and running refsim module, calibration factors are sent to the petrosim environment in order to simulating and optimizing the under. Other articles where naphtha reforming is discussed. Modeling and simulation of four catalytic reactors in series for. Reform3pc is a rating program for the firebox sections of steammethane reformer furnaces, which are used in hydrogen, ammonia and oxoalcohol production. Dynamic modeling and simulation of catalytic naphtha reforming. Apr 16, 2018 second, the 17lumped kinetic model of cdn semiregenerative catalytic reforming reactor was established, and the model parameters of kinetic model were estimated and validated by broydenfletchergoldfarbshanno algorithm. Globally, naphtha a mixture of many different hydrocarbon compounds is the predominant feedstock, including straightrun naphthas srn from refinery crude units and naphtha derived from condensates during natural gas production. Naphtha, catalytic reforming, kinetics, simulation and analysis introduction catalytic reforming of naphtha or mixture of naphtha with a certain amount of cracking oil is a process of great interest to the petrochemical industry for the production of aromatic compounds that are raw materials for plastics, elastomers and resins. Introduction catalytic naphtha reforming is an important. The effect of feed characterization on naphtha reformer modeling.
In this work, according to the recent progresses in naphtha reforming technology, a mathematical modeling of a continuous catalytic reformer with catalyst recirculation is developed for simulation and optimization of the new industrial continuous reformers. Catalytic reforming unit ccr optimization the use of. Kinetic model, modeling, naphtha reforming, fixed bed reactor. The objective is to reduce sulfur and nitrogen contents less than 0. A study on naphtha catalytic reforming reactor simulation and. Naphtha quality variations can arise from varying cdu feedstocks and operation, but also from alternative naphtha feed sources. When combined with our portfolio of bestinclass reforming catalysts, the ccr platforming process produces highoctane reformate which is used both for gasoline and as a source for btx aromatics. Simulation and optimization of continuous catalytic naphtha reforming process section dresearch paper eur. Second, the 17lumped kinetic model of cdn semiregenerative catalytic reforming reactor was established, and the model parameters of kinetic model were estimated and validated by broydenfletchergoldfarbshanno algorithm. Because hydrogen needs within various sectors of the cpi are at their highest levels in history, and are continuing to grow, an understanding of this method of hydrogen production and purification can be useful. Study of industrial naphtha catalytic reforming reactions via modelling and simulation aminu zakari yusuf 1,2, b.
Hi all, i want to calculate material balance for naphtha steam reformer. Simulation of a naphtha catalytic reforming complex. The new kinetic model utilizes lumped representation of the reactions that take. The results show that the simulation model is accurate, reliable and has good predictive ability. Petroleum refining petroleum refining naphtha reforming. The initial process, thermal reforming, was developed in the late 1920s.
Simulation the continuous catalytic reforming octanizer. Additionally, arhenius and langmuirhinshelwood kinetics are widely used for kineticbased catalyst modelling and simulation of the catalytic naphtha reforming process. The main purpose of this technology is hydrogen production. Introduction the catalytic reforming process is one of the most critical operations in petroleum refineries to produce gasoline with high octane number. He was responsible for commissioning and precommissioning of process units in arak refinery expansion project. In this work the modeling and simulation of catalytic naphtha reforming process is presented.
The naphtha hydrotreating process is also important to pretreat naphtha for downstream units, like paraffin isomerization and catalytic reforming, where severe. The most widespread process for rearranging hydrocarbon molecules is naphtha reforming. The process model uses an extended version of the kinetic model reported by krane et al. Hydrogen production by steam reforming chemical engineering. Tehran refinery catalytic reforming unit were used. Matlab software in simulink mode is used for dynamic simulation. Thermal reforming employed temperatures of 510565 c 9501,050 f at moderate pressuresabout 40 bars 4 mpa, or 600 psito. These models where developed on top of a base model of a reforming unit provided by kbc.
He is member of ips and teaching in the university and member of a scientific mission in elmi karbordi university. Hougen watson langmuirhinshelwood type reaction rate expressions are used to. Turaga et al catalytic naphtha reforming 967 determine the shape of the reforming catalysts and the preferred shapes are usually pellets. The kinetic and thermodynamic parameters and properties were obtained from literature. Modeling, simulation and optimization of naphtha reforming.
Simulation of catalytic reforming units and construction. Catalytic reforming is one of the most important refinery processes providing high octane number gasoline components, and aromatic compounds for the petrochemical industry as well as the valuable byproduct of hydrogen. In this work the modeling and simulation of catalytic naphtha reforming. Simulation the continuous catalytic reforming octanizer unit of arak refinery gasoline production complex with petrosim software. The problem was also extended to study the full range of. Working in tandem with petrosim, these models are the industrys most trusted analytical tools for conversion unit monitoring, planning, optimization and design and engineering. Furthermore, simulation results were compared with. Thermal reforming employed temperatures of 510565 c 9501,050 f at moderate pressuresabout 40 bars 4 mpa, or 600 psito obtain gasolines petrols with. Han chau graduate research assistant university of. A study on naphtha catalytic reforming reactor simulation and analysis, journal of zhejiang university science, 2005 6b 6. Reactor modeling and simulation of catalytic reforming process.
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