Utilization of Acetone, By-Product of Cumene …
Acetone is a stoichiometric by-product of the cumene process for the production of phenol. By self-condensation of acetone (), it is possible to synthesize compounds valuable for industry: mesityl and isomesityl …
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Microchannel process for phenol production via the cleavage of cumene
Abstract. Phenol is commercially produced through cumene hydroperoxide (CHP) cleavage in kettle reactor, having the disadvantages of hazard potential, low selectivity, low efficiency and complicated process. In the study, microchannel reactor has been introduced into the decomposition using sulfuric acid as the catalyst.
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(PDF) Mathematical model of process of production of phenol …
Abstract. In this paper we review the industrial process of phenol and acetone production and apply the mathematical modelling and computer simulation in order to choose the optimal conditions for ...
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Design and Control of the Cumene Process
2. Process Studied The cumene process is described in Turton et al.1 in a fair amount of detail. The basic flowsheet is presented, and the Figure 1. Txy diagram: (a) for benzene/cumene; (b) for cumene/PDIB. kinetics of the reactions are given.
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Energy Balances and Numerical Methods Design Project …
Production of Cumene Process Description Figure 1 is a preliminary process flow diagram (PFD) for the cumene production process. The raw materials are benzene and propylene. The propylene feed contains 5 wt% propane as an impurity, It is a saturated liquid at 25°C. The benzene feed, which may be considered pure, is liquid at 1 atm and …
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Process Flow Diagram for Acetone Production Using …
RESULTS The experimental results of the liquid–liquid equilibrium for the acetone–water–potassium carbonate ternary system at 25 °C was fitted to an ELECNRTL thermodynamic model (binodal ...
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The Cumene Process for Phenol—Acetone Production
The cumene process encompasses the three-step synthesis, and significant amount of acetone produced as a by-product via the Hock rearrangement, which is a 1:1 M ratio concerning phenol [6 ...
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Design of a New, 100,000 Metric Ton Per Year, Cumene …
Since phenol is made from cumene, a grass-roots cumene plant would also be necessary. Given your experience in trouble- ... 2. a clear, complete, labeled process flow diagram of your optimized process including all equipment and the location of all major control loops 3. a clear stream flow table including T, P, total flowrate in kg/hr and ...
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Solved Q3 Process Flow Diagram X X12= mol/hr mol …
The industrial process for synthesizing phenol is known as the cumene-phenol process (cumene process or Hock process). It is used to convert benzene and propene in the presence of oxygen to phenol and acetone according to the following reaction: CH+CH+02 → CHOH+C, HO 65 The reaction is carried out with excess benzene and excess oxygen …
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Design and Control of the Cumene Process | Industrial
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 p-diisopropylbenzene. Both reactions are irreversible. Since the second has a higher activation energy than the first, low reactor temperatures improve selectivity …
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Cumene autooxidation to cumene hydroperoxide based on …
Cumene (99.0 wt% analytical purity) and cumene hydroperoxide (CHP, 80.0–85.0 wt% analytical purity) were used through the study, which were purchased from Shanghai Macklin Biochemical Co., Ltd. O 2 gas (99.999%) was purchased from Beijing Haipu Gas Co., Ltd Fig. 2.a displays the schematic diagram of experimental microfluidic …
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Tiffany Smith
Phenol is a desirable product, annually drawing $11.5 billion globally. Presently, most phenol on a global scale is produced by a multi-step cumene process that also produces equimolar amounts of acetone. This reaction is dangerous, energy intensive, and leaves phenol prices closely tied to those of acetone. The process proposed in this report ...
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Production of phenol from cumene
Liquid-phase oxidation of cumene with molecular oxygen produces cumene hydroperoxide, which is subsequently decomposed catalytically into phenol and acetone. The oxidation requires the use of thoroughly purified cumene. )t was carried out in a copper vessel at 120 C, good conversions and high yields of cumene hydroperoxide being obtained.
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Applications of dividing wall column technology to industrial-scale
In this section, the new DWC distillation process is proposed for synthesis and separation of high-purity cumene, which has the same feed conditions and operating conditions with the conventional distillation process, and Fig. 4 gives the process flow diagram of the DWC sequence by replacing C-2 and C-3 with a single dividing wall …
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Production of Phenol and Acetone From Oxidation of Cumene …
THE first plant to produce phenol and acetone from petroleum, through oxidation of cumene, went into operation last week when B. A.-Shawinigan Ltd. officially opened its plant at Montreal. The company, owned jointly by Shawinigan Chemicals and British American Oil Co., Ltd., is operating under license from Hercules Powder and Distillers …
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Process for producing phenol from cumene
Abstract. The present invention provides in a particular embodiment an improvement in the process for producing phenol by the acid-catalyzed cleavage of cumene hydroperoxide (CHP). The reactant stream fed to the cleavage reactor also includes the contaminant by-product dimethyl benzyl alcohol (DMBA) formed during the direct oxidation of cumene ...
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Compact process for cumene manufacture: Synthesis, …
A compact single-unit process is developed for continuous cumene manufacture via the alkylation of benzene with propylene.The design combines reactive distillation (RD) and dividing-wall separation in a single column. In terms of the TAC, it is significantly cheaper (42%) than the conventional "reaction followed by separation …
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Economic and environmental analysis of the cumene production process
Systematic top-down economic plantwide control of the cumene process. J. Process Control (2013) ... A Material Flow Analysis (MFA)-based potential analysis of eco-efficiency indicators of China's cement and cement-based materials industry ... Microchannel process for phenol production via the cleavage of cumene …
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Cumene Hydroperoxide
The first step in phenol production is oxidation of cumene to cumene-hydroperoxide (CHP) with 25-30% conversion. Phenol comes from cleavage of CHP, but in the previous step the diluted CHP has to be concentrated. ... Cavani and Gaffney (271) published a flow diagram of the Sumitomo process (see Figure 1.15), and Sumitomo process patents ...
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Design and Control of the Cumene Process
Cumene is a very important petrochemical commodity, mainly to produce phenol and acetone. The overall growth rate for cumene capacity has been healthy, averaging slightly less than 3.5 % per year ...
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(PDF) Economic Design and Optimization of …
yield of the alkylation proces s and hence the profitability of the whole plant. A typical process flow diagram of cumene production on a zeolite catalyst is. shown in Figure 1. Fresh and pure ...
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The cumene process for phenol-acetone production
The cumene process for phenol-acetone production. V. Zakoshansky. Published 1 July 2007. Chemistry, Engineering, Environmental Science. Petroleum Chemistry. 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 …
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(PDF) Cumene oxidation to cumene hydroperoxide
Recent process design innovations have been commercialized for the cumene hydroperoxide route that remains the process of choice for the production of phenol. All of this effort has been directed at improving yield, process economics/costs, and process safety for the preparation of phenol as a key intermediate for the growing bis-phenol A …
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Cumene oxidation to cumene hydroperoxide
phenol production industrial process. It is intended to study the cumene oxidation to CHP in order to be able to optimize it, determining the optimal operation conditions as well as choosing the most suitable catalyst that improves the process, increasing the selectivity to CHP and the oxidation rate. It is needed to
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Development of the cumene oxidation process: Rigorous …
Note that the composition disturbances of the cumene fresh feed were considered to characterize its flow with impurities carried by the back-end process reflux. Herein, it is assumed that the cumene fresh feed contains 2 % CHP, acetone, phenol, and H 2 O, respectively.
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Design and Control of the Cumene Process | Semantic Scholar
128. 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 p-diisopropylbenzene. Both reactions are irreversible. Since the second has a higher activation energy than the first, low reactor temperatures improve selectivity …
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RD-00050619 -D5 11 Process flow diagram and …
D5.11 / Process flow diagram and description of the phenol recovery process from pyrolysis oil and economic exploitation report page 4/10 3 PFD of the phenol recovery process from catalytic pyrolysis oil 3.1 Introduction Isolation of a valuable chemical from various primary streams of the conversion of biomass is a challenging task.
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(PDF) The Production of Cumene via the …
The aim of this report is to design a plant that produce 175,000 tons/year of isopropylbenzene (cumene) with a purity of 99.4% using the Honeywell UOP QMax technology. figure1-1: Process flow ...
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PROCESS ECONOMICS PROGRAM
PHENOL. This is the fourth in a series of reports on the manufacture of phenol. The report contains preliminary process designs and cost estimates for the cumene peroxidation process, the. water to form cyclohexanol, and dehydrogenating the cyclohexanol to produce phenol.
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Carbon-negative production of acetone and isopropanol by …
Acetone is mostly produced as a byproduct of phenol production using the cumene process. ... Process flow diagram of ... Medium dilution rates used were between 1.0 and 6.5 d −1 and gas flow ...
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