The plant is designed to produce maleic anhydride by the reaction of butane with oxygen using the vanadium phosphorus oxide as a heterogeneous catalyst vpo and also the byproducts are carbon monoxide and carbon dioxide. Longterm health effects prolonged vapor contact to maleic anhydride may cause conjunctivitis and photophobia sensitivity of. Request pdf inspection of maleic anhydride in starch powder using linescan hyperspectral raman chemical imaging technique excessive use of maleic anhydride man in starch production is. My components are benzene, maleic anhydride, carbon dioxide, nitrogen, oxygen and water. As a large consumer of maleic anhydride for the production of malic and fumaric acids, bartek ingredients has a long term commitment to the production of. Carrying out the material and energy balance calculations for the process. The simulation software aspen plus by aspentech was the primary software used to. Proccess flow sheet description maleic anhydride ma is an organic compound with the formula c2h2co2o. It is the acid anhydride of maleic acid t 90 c p 300 kpa conclusion introduction p 300 kpa t 410 c nbutane benzene power 3. Although maleic anhydride is produced in the reaction section of the process and could be recovered, it is not a direct product of the process. Production of maleic anhydride background maleic anhydride is a versatile chemical intermediate used to make unsaturated polyester resins, lube oil additives, alkyd resins, and a variety of other products. Molybdenum is the most popular element, but phosphorus and the alkali and alkaline. Maleic anhydride powder, 95% 2,5furandione sigmaaldrich.
Production of phthalic anhydride from xylene slideshare. The plant produces approximately 75,000 tonney of highpurity 99. Product purification is a typical twostep distillation approach involving light ends removal and the separation of a heart cut, usually vacuum assisted. The chosen technology for the oxidation sections and unreacted nbutane. There is a 100% conversion of maleic anhydride with a 98% selectivity of thf. Rigorous multitubular catalytic reactor modelling and exportation into the process flowsheet.
Identification of the substance maleic anhydride cas number 108316 1. The initial part of the phthalic anhydride production process flow. Search results for maleic anhydride at sigmaaldrich. The first commercial process for ma production was put into use by national aniline and chemical in 1928. Once maleic anhydride is produced from nbutane, tetrahydrofuran thf is then produced from the maleic anhydride. Maleic anhydride is used to manufacture 1,4butanediol bdo, which has a high demand from the textile industry and the manufacturers of tetrahydrofuran thf and polyurethane pu.
Maleic anhydride ma is produced commercially by the oxidation of benzene or butane. Effect of oxidation time on maleic anhydride production rate. All distillation columns must be simulated using rigorous unit operations e. Preliminary calculations are done to be used later such as mass balance, density and molecular weight.
It is a cyclic dicarboxylic anhydride and a member of furans. Grafting of maleic anhydride onto polypropylene by. Fluid mechanics, heat transfer, thermodynamics design project production of maleic anhydride we continue to investigate the feasibility of constructing a new, grassroots, 40,000 tonney, maleic anhydride facility. Product details the largest single use for maleic anhydride ma is in the production of unsaturated polyester resins which are in turn used to produce reinforced plastics. The benzene feed requirement to produce 40,000 tonsyear maleic anhydride was determined at 57. This document entitled chemical process simulation and the aspen hysys v8. Che 455 fall 2009 major 1 phthalic anhydride production. Pdf figure 20, the following equipment have been included in the. Using aspen hysys 2006 software, a continuous process was designed with a capacity of 6,600 tonsyr biodiesel production. Simulation of a maleic anhydride production process using aspen hysys version 10. Catalysis today, 1 1987 537586 537 elsevier science publishers b.
The sensidyne gas detector tube system and maleic anhydride 0. Energy recovery is a key factor in the economic production of maleic anhydride. For this paper, production of biodiesel by transesterification of vegetable oil with methanol in presence of an acid catalyst has been studied. Uprs are widely used as body filler for reconstruction and repair of damaged parts of.
Inspection of maleic anhydride in starch powder using line. Dear all, as mentioned in topic title, im having trouble in selection of a suitable fluid package. Aspen hysys simulation of maleic anhydride production from nbutane via partial oxidation 25 2. Global maleic anhydride market industry analysis report. In 1995, global production of maleic anhydride was estimated at 1. The global maleic anhydride market size was valued at usd 2. Simulation of rxylene oxidation into phthalic anhydride. Maleic anhydride is an organic compound with the formula c2h2co2o. Used in copolymerization reactions, in the dielsalderdienesynthesis, in the preparation of resins, pharmaceuticals and agricultural chemicals. Water scrubbing and subsequent dehydration of the maleic acid stream are required to purify and reform the remaining maleic anhydride. Maleic anhydride production by khansaa hamed on prezi. An exception is the isolation of maleic anhydride as a byproduct in the production of phthalic anhydride. Pdf production of maleic anhydride from oxidation of n.
Maleic anhydride is a colorless to white solid that forms orthorhombic crystals and decomposes in water. Refining operations petroleum refining processes and operations can be separated into five basic areas. The anhydride of maleic acid has five atoms in its cyclic molecule, the unsaturated bond undergoes free radical polymerization in. Fractionation distillation is the separation of crude oil in atmospheric and vacuum distillation towers into groups of hydrocarbon compounds of. Hysys selection of fluid package for maleic anhydride production posted in chemical process simulation. The modified polypropylene was characterized by ftir spectroscopy, melt. Aspen hysys simulation of maleic anhydride production from n.
Project 2 maleic anhydride pipe fluid conveyance heat. The feed from distillation tower 103 goes into a reactor feed prep. The process was simulated using aspen hysys version 10. Maleic anhydride, is produced by international diol company idc, an affiliate of sipchem from oct. Niosh manual of analytical methods, 2nd edition, vol. The economics and lca results are employed to guide the. Hysys selection of fluid package for maleic anhydride. Maleic anhydride ma production and manufacturing process. As part of the feasibility study, we would like you to investigate some. Maleic anhydride rapidly hydrolyzes to form maleic acid in the presence of water and hence environmental exposures to maleic anhydride itself are unlikely. Scalable digital automation system integrates multiple. Introduction this report represents a process simulation of the phthalic 50. Maleic anhydride causes severe burns and may produce an allergic skin reaction in sensitive individuals.
Maleic anhydride is a severe irritant to the eyes, skin and respiratory tract which can, upon. Pdf aspen hysys simulation of maleic anhydride production. Introduction this report represents detailed calculations of design and sizing for the distillation column t 701 of the production of phthalic anhydride from xylene process. Maleic anhydride 72 has been used extensively in the textiles and fibers industry. It is a colorless or white solid with an acrid odor. Project 2 maleic anhydride free download as pdf file. It used the weiss and downs process employing benzene as a raw material.
Reduced labor the next upgrade was in the phthalic anhydride plant, where elekeiroz increased by 5% the production volume and reduced operational labor by 30%. Your job is to analyze a simplified maleic anhydride production. Pdf the aim of this project was to design a production plant. Sigmaaldrich offers a number of maleic anhydride products. Fluid mechanics, heat transfer, thermodynamics design.
Major 1 phthalic anhydride production background you work for an operating company that produces, among other products, phthalic anhydride via the partial oxidation of oxylene in a fixedbed catalytic reactor. Commercial production of maleic anhydride by catalytic. Increasing demand for unsaturated polyester resins upr and 1,4butanediol bdo are expected to augment market growth over the forecast period. Hysys simulation of the maleic anhydride production process using. Maleic anhydride is manufactured by the oxidation of benzene over. The maleic anhydride process as described in this report differs greatly from a. Basic information on aspen plus and its graphical operations. Although the butanebased process is considered to have superior economics and is the preferred route used by most producers, lonza claims its fixed bed benzene route is competitive in low cost revamps and mediumsize plants. When i followed seaders recommendation, it advised using psrk, however it turned out that hysys does not recommended using it due to the present of maleic anhydride. Aspen hysys simulation of maleic anhydride production from nbutane via partial.
The global maleic anhydride market size is projected to reach usd 4. All operating instructionsprocedures have been covered to maintain and control. The problem in maleic anhydride production simulation. Ingestion of maleic anydride is toxic and may cause digestive tract burns. Petrotex also used their butenebased process in the early 1960s, which was later abandoned in favor. Evaluation of methods used for analysing maleic anhydride. In 1995, global production of maleic anhydride was estimated at. Evaluation of methods used for analysing maleic anhydride grafted onto polypropylene by reactive processing article pdf available in polymer testing 191. Louis, mo, usa, 63167 abstract the production of maleic anhydride using n. Maleic anhydride is a cyclic dicarboxylic anhydride that is the cyclic anhydride of maleic acid. Simulation of r xylene oxidation into phthalic anhydride. Production of maleic anhydride chemical engineering. Maleic acid is biodegradable under aerobic conditions in sewage sludge as well as in soil and water. The structure of maleic acid consists of four carbon molecules along with carboxylate groups on either ends, with a double bond between the central carbon atoms.
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