A powerpoint presentation outlining economic and design factors for an isopropylbenzene plant. You should use a 10year plant lifetime and an interest rate of 15%. This process converts two relatively cheap starting. Having such a great advancement in the production of products, there is a significant reduction of human efforts and also production time is reduced by onefourth. Production of cumene via alkylation of benzene and propylene by honeywell uop qmax technology poster pdf available december 2019 with 128 reads how we measure reads. The production of cumene using zeolite catalyst aspen.
With increase in the demand of different products, production technology also changed proportionally. Side reactions which take place are isomerisation and disproportionation. The global market cumene is benefitting on account of increasing demand for phenol and acetone. A majority of cumene units are integrated with a downstream phenol unit. Cumene market size, share, growth and industry research. To design a zeolite catalyst based cumene production process and study the. Cumene production methods are disclosed, based on the alkylation of benzene with propylene, in which byproducts of the alkylation reaction are advantageously reduced to achieve a high cumene selectivity. Us8242320b2 cumene production with high selectivity.
Cumene production plant distillation catalysis free 30. Figure 4 shows how changes in the benzene recycle affect a number of important variables. The vast majority of phenol is made by the cumene process. The pfd for the cumene production process, unit 800, is given in figure 1. By now, most merchant cumene producers have converted to zeolite catalyst, and almost all new investment is in zeolite technology. A mathematical model has been developed on the basis of the regularities of hydroperoxide and by. Global cumene market analysis and forecast, 20142022.
This aspen plus model simulates the production of cumene by the alkylation of benzene using propylene. The cumene process for phenolacetone production pdf. Alkylation of benzene by propylene to cumene 6 tekim undip. Cumene is also used as a thinner for paints, lacquers, and enamels and it is a natural component of coal tar and petroleum. Essentially all cumeme worldwide is consumed for the. In addition to mobilbadger, uop and cdtech offer zeolitebased processes for licensing. Alkylation of benzene by propylene to cumene 173 6 6.
Cumene in the global petrochemical industry is used primarily as a reactant for production of phenol. The benzene is kept in excess to limit the amount of dipb product. For cumene production, the zeolite catalystbased technology is the most widely used. The cumene process cumenephenol process, hock process is an industrial process for synthesizing phenol and acetone from benzene and propylene. Provides economic considerations to include global market analysis all units distillation columns, reactorsect are designed. The versalis cumene process, based on a pbe type zeolite based proprietary catalysts, has been industrially applied since mid 1990s. Cumene market is projected to reach higher cagr during forecast period 20172023, global cumene market size, share, and industry analysis by product, production technology, application, and. It is a natural component of coal tar and crude oil, and also can be used as a blending component in gasoline. Combining the qmax process with the uop phenol process results in higher phenol yields, improved product quality and lower utility consumption. Cumene output is 35 1%, more than 15% of the amount of produced cumene is waste. The following reaction mechanism are proposed for the alkylation of benzene for production of cumene. Prior to the activity measurement, each catalyst was pretreated in situ in n 2 at 500c for 2 h.
Cumene market 2014 2019 cumene market report trends. Abstract this paper discusses the results of investigations on the kinetics of cumene oxidation to cumene hydroperoxide by molecular oxygen in the presence of n. This may be attained by i reducing the portion of the total alkylation effluent that is recycled, after cooling, to the alkylation reaction zone for quenching or direct heat exchange andor. The total benzene feed to the reactor is the sum of the fresh benzene feed and the recycle benzene, which is the distillate d1 of the first distillation column. Cumene is currently among the worlds five biggest largescale productions, along with ethylene, propylene, benzene and ethylbenzene 10. Propylene and benzene are reacted in an alkylation reaction zone, the effluent of which is divided into two portions, the first being recirculated to the inlet of the reaction zone and the second being passed into a separation zone wherein cumene product, di and triisopropylbenzene. The history of designing and the evolution of the process for the joint production of phenol and acetone, which is now the basic industrial method for the manufacture of these products, the state of the art and parameters of its key steps in industrial facilities among world manufacturers of phenol are presented.
Cumene kirkothmer encyclopedia of chemical technology. Che 455 fall 2012 major 1 cumene production background. Cumene is an alkylbenzene that is benzene carrying an isopropyl group. The objectives of the present project are following. Current problems in the cumene technology are product quality and alkylation temperature reduction below the. Cumene production process is gaining importance and so the process needs to be studied and better ideas suggested such that the production cost is reduced. Cumene, also known as isopropyl benzene, is an organic constituent of crude oil and refined fuels. It is a highly flammable liquid utilized in the production of acetone and phenol.
The partial pressure of cumene aldrich, 99% was 232 pa, the flow rate of n 2 50 ml. Optimization of the process and making recommendations to improve the efficiency of cumene production. Pbe1 is a proprietary zeolite based catalyst showing higher selectivity to cumene than other common. This work describes the application of the plantwide control design procedure of. In 1997 the new zeolite based technology was extended to kty cumene capacity. The conversion of propylene is typically higher than 99. These economic details were introduced in che 38, and will be covered in more detail in che 182183. Benzene and propylene, the two reactants used to create cumene, are produced primarily as a byproduct of crude oil refining. Cumene production other bibliographies cite this for me. It has various enduse industries such as polycarbonate, bisphenola, and phenolic resins considering that phenol has major share of applications.
The cumene process for phenolacetone production pdf free. The best technology for cumene production is a catalytic process that is optimized at 350 c and 25 atm. Norouzi, hasani, haddadisisakht and mostoufi, 2014. To optimize the contents of the flow sheet for minimization of loss of material along. The chemistry of the cumene process features the desired reaction of benzene with propylene to form cumene and the undesirable reaction of cumene with propylene to form pdiisopropylbenzene.
Cumene market is projected to reach higher cagr during forecast period 20172023, global cumene market size, share, and industry analysis by product, production technology, application, and region cumene industry. Because of its high benzeneto cumene selectivity, the zeolitebased process has the lowest production costs of all the processes using refinerygrade propylene. Kinetics and mechanism of cumene oxidation initiated by n. The best technology for cumene production is a catalytic process that is optimized at 350 c. The technology is flexible and can produce cumene from a variety of propylene sources including refinery, chemical and polymer grades. Cumene market size, share global industry analysis report, 2025. Pdf application of cumene technology mathematical model. Global cumene market revenue by application, 2016 % isopropylbenzene is used extensively for the production of phenols and its.
Successful development and commercialization of the zeolitebased technology for the production of cumene has rendered obsolete the older processes based on phosphoric acid and aluminum chloride. Pdf production of cumene via alkylation of benzene and. Cumene market size, share, trends forecast report 2024. Cumene chemical production and investment cost ihs markit. High purity cumene is manufactured from propylene and benzene. Arg uably, the acetone production factory sug gested in th is study ca n satisfy t he country s economic needs and increase iraqs budget since it would be a pro table project. Pdf economic optimization of the cumene production process. Phenol, acetone, cumene 09104 report abstract 1 perp 00101. In 1976, an improved cumene process that uses aluminum chloride as a catalyst was developed.
Home image popup uop qmax process for cumene production. The reaction mechanism and kinetics may vary depending on the catalyst used. Page 1 of 2 design of a cumene production facility posted in student. Phenol emerged as the largest application segment and accounted for over 61. A process to reduce utility consumption in the catalytic alkylation of benzene with propylene to form cumene. The major reactions taking place are alkylation and transalkylation. Cumene in chemical form is known as isopropyl benzene, an organic compound based on aromatic hydrocarbons with aliphatic substitution. Since the second has a higher activation energy than the first, low reactor temperatures improve selectivity of cumene. Design and control of the cumene process industrial. Nov 23, 2009 the chemistry of the cumene process features the desired reaction of benzene with propylene to form cumene and the undesirable reaction of cumene with propylene to form pdiisopropylbenzene. This approach is believed to involve cooxidation of cumene and secbutylbenzene to give phenol, with acetone and mek as coproducts. Cumene, also known as isopropylbenzene, 2phenylpropane, or 1methylethyl benzene, is a colorless, volatile liquid with a gasolinelike odor.
To design a zeolite catalyst based cumene production process and study the sensitivity analysis. Secbutylbenzene sbb can be made via alkylation of benzene with nbutenes. It is also used as a blending component in gasoline and has increased its application in various industrial applications, owing to its highoctane number. Material balances design problem cumene production background. Losses in chp concentration depending on the chp yield in both conventional and illa processes. The cumene production technology was originally developed during world war ii to meet the demand for aviation gasoline, with which it was blended to improve octane rating 8,9. Cumene chemical products and technology division of acc. Cumene finds most of its applications in production of phenol followed by acetone and other industrial chemicals. The term stems from cumene isopropyl benzene, the intermediate material during the process. The zeolite technology was introduced for the commercial production of cumene in the early 1990s. In 2000, following four years of continuous troublefree testrun operation, the fully proven technology was applied to the revamp of the existing cumene plant for a total of 400 kty cumene capacity at versalis porto torres site. The process is presented in the design book by turton et al. Skogestad skogestad, 2004 to the cumene production process.
Cumene technology the versalis cumene process, based on a pbe type zeolite based proprietary catalysts, has been industrially applied since mid 1990s. C3h7c6h4c3h7 propylene cumene diisopropyl benzene dipb. The main use of cumene is as a feedstock for phenol production. The production instability manifests itself in the increased volume of heavy impurities polyalkylbenzenes and tar in the reaction mixture of alkylation. Overall yield plays a dominant role in the economics of cumene production. My initial thoughts of approaching this problem was that i look in the literature for the kinetics of the reaction from which i can assume the conversion and the ratio of the reactants in the feed. Cumene based routes to phenol are responsible for virtually all global production of phenol. The above equation for estimating the cost of cumene is based on the minimum price that cumene could be sold for to cover our operating expenses. Pbe1 is a proprietary zeolite based catalyst showing higher selectivity to cumene than other common zeolite catalysts and is equally effective for alkylation. Cumene is fed to the first of said reactors to form cumene hydroperoxide chp in concentrations of up to 12%, the mixture of cumene and chp overflows to the 2nd and then to 3rd oxidizer to reach 17 and 21% as chp respectively. About 40% of phenol produced in russia is exported to finland, china, and latvia. The technology, the worlds most advanced for the production of cumene, a chemical intermediate, uses a proprietary mobil zeolite catalyst that produces yields significantly higher than traditional processes. Today, the cumene is used almost exclusively for manufacturing phenol and acetone.
Economic optimization of the cumene production process using response surface methodology article pdf available in chemical engineering communications 19911. The production of cumene isopro pylbenzene involves the reaction of benzene with propylene in a hightemperature, highpressure gasphase reactor. Material balances design problem cumene production. Production technology is one of the key branches of mechanical engineering. The first installation of a completely zeolitebased cumene process, which uses mobilbadger technology, went on stream at georgia gulf s plant in 1996. Pdf economic optimization of the cumene production. Reactors and separations design project production of cumene. Application of cumene technology mathematical model. Cumene market size, share global industry analysis.
The best technology for cumene production is a catalytic process that is optimized at 350c. This reaction is exothermic so that vapors with traces of cumene are carried in the spent gasses stream. For all the processes evaluated, raw material costs account for 86 to 96% of the net production costs. Given the output of cumene production, how do i go on about performing material balances on every single unit in a process. The remaining components are primarily polyisopropyl benzenes.
Reaction mechanism and kinetics for cumene production. The overall conversion of cumene for this process can be as high as 90%. Cumene production plant distillation catalysis free. Cumene cracking was carried out in a fixedbed microreactor under atmospheric pressure at 300c. The production of cumene using zeolite catalyst aspen model. Because of its high benzenetocumene selectivity, the zeolitebased process has the lowest production costs of all the processes using refinerygrade propylene. In this process, the efficiency of cumene production is generally 7075%. Application of cumene technology mathematical model core. Cumene is used in adhesives and sealant chemicals, as well as in fuels and fuel additives. Cumene appears as a clear colorless liquid with an aromatic odor. This paper discusses the results of investigations on the kinetics of cumene oxidation to cumene hydroperoxide by molecular oxygen in the presence of n. Introduction cumene is an important industrial intermediate in the manufacture of phenolic and polycarbonate resins, nylon and epoxy and is conventionally produced by the friedel crafts alkylation of benzene with propylene. Cumene production reactions the reactions for cumene production from benzene and propylene are as follows.
The reactions for cumene production from benzene and propylene are given in. Cumene, also known as isopropylbenzene, 2phenylpropane or 1methylethyl benzene, is widely used as a chemical intermediate in the production of phenol and acetone. Pdf the process of manufacturing cumene from propylene and benzene on a solid phosphoric acid catalyst was studied. Special attention is given to the consideration of ways of improving the. Cumene production plant free download as powerpoint presentation. Conversion of spabased process units to zeolite catalyst results in dramatic increases in capacity, lower energy, maintenance and raw. The chemistry of this route is shown below simplified in that the cooxidation of cumene to chp is omitted. Uop qmax technology is currently licensed in 22 units worldwide, with a total cumene capacity greater than 6 million mta. Cumene introduction, manufacturing process, applications. Energy efficient versalislummus cumene phenol technology. Economic and environmental analysis of the cumene production. May be moderately toxic by inhalation, ingestion and skin absorption. It is also used as a solvent in lacquers, paints and enamels and in the production of highoctane production fuels.
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