Our Products

Rotary Evaporator

Laboratory equipment

Jacketed Reactor

Contact Us

We Cherish All Interactions

Continuous Liquid-Phase Hydrogenation of 1,4-Butynediol to .

Continuous Liquid-Phase Hydrogenation of 1,4-Butynediol to .

The work describes the results on the hydrogenation of the 2-butyne-1,4-diol (BYD) to 1,4-butanediol (BAD) over both slurry and particulate Raney nickel catalysts (Ra Ni) in batch and in a fixed bed reactor system. The detailed study on the kinetics of the reaction obtained in batch conditions revealed the existence of four stages in the overall hydrogenation network.

Visual Encyclopedia of Chemical Engineering

Visual Encyclopedia of Chemical Engineering

Slurry reactors are most frequently used when a liquid reactant must be contacted with a solid catalyst, and when a reaction has a high heat of reaction. They may be used in such applications as hydrogenation, oxidation, hydroformation, and ethynylation. The reactor shown below is a slurry phase hydrogenation reactor.

Characteristics of Carbon Dioxide Hydrogenation in a .

Characteristics of Carbon Dioxide Hydrogenation in a .

tion temperature, pressure or H2/CO2 ratio in the fluidized bed reactor. Also, the CO2 conversion and olefin selectivity appeared to be higher in the fluidized bed reactor than those of the fixed bed reactor. Key words: Carbon Dioxide, Hydrogenation, Fluidized Bed, Catalyst INTRODUCTION There has been considerable interest in the utilization of .

Heterogeneous catalytic reactor - Wikipedia

Heterogeneous catalytic reactor - Wikipedia

Fixed bed reactors. A fixed bed reactor is a cylindrical tube filled with catalyst pellets with reactants flowing through the bed and being converted into products. The catalyst may have multiple configuration including: one large bed, several horizontal beds, several .

C4 Selective Hydrogenation - BASF Catalysts

C4 Selective Hydrogenation - BASF Catalysts

Catalyst E 347 1/8" is suited for fixed bed hydrogenation applications such as diolefin removal from pyrolysis gasoline or selective hydrogenation of olefinic C4 streams (removal of butadiene). This palladium on alumina catalyst is specially formulated for fixed bed hydrogenation applications where controlled pore distribution and surface are .

What type of reactors are mostly suited for hydrogenation .

What type of reactors are mostly suited for hydrogenation .

Has got to be a fixed bed rector or a a reactor in which the catalyst is fluidized, and may recirculate. To elucidate which reactor should it be one has to design it, based on the specific .

High Performance Fixed Bed Flow Hydrogenation

High Performance Fixed Bed Flow Hydrogenation

• Trickle Bed Trickle bed reactor: Daniele Pugliesi Creative Commons Attribution-ShareAlike 4.0 License . Trickle Bed – Extruded Catalyst . • High performance fixed bed hydrogenation can easily be configured for high pressure • Using off the shelf components, IntensiChem is assembling a 700bar (10,000psi) system

Centauri Technologies | Your Partner In Specialty Chemical .

Centauri Technologies | Your Partner In Specialty Chemical .

CENTAURI Technologies, LP combines the unique processing capabilities of vapor and liquid phase fixed bed reactors at pressures to 1100 psig and temperatures to 600°F with batch reactions to 2000 psig on a commercial scale.When combined with the onsite synergies of batch and continuous distillations, CENTAURI offers multiple unit operations at a single site.

Hydrogenation in Practice - Lipid Library

Hydrogenation in Practice - Lipid Library

These reactors are essentially a vertical reactor tube in which the catalyst/feedstock mixture flows downward and into which hydrogen is injected at different stages. For fatty acid hydrogenation this works well but these reactors are less suited for triglyceride oils than the so-called fixed bed reactors.

FlowCAT offers flexible fixed-bed hydrogenation

FlowCAT offers flexible fixed-bed hydrogenation

Mar 22, 2010 · HEL, an international group of companies supplying process tools for the pharmaceutical industry, has introduced the FlowCAT continuous flow bench-top reactor, which is said to be a flexible and cost-effective choice in lab-scale fixed-bed hydrogenation.

Hydrodesulfurization - Wikipedia

Hydrodesulfurization - Wikipedia

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. The purpose of removing the sulfur, and creating products such as ultra-low-sulfur diesel, is to reduce the sulfur dioxide (SO 2) emissions that result from using those fuels .

Fixed bed reactors | Request PDF

Fixed bed reactors | Request PDF

Catalytic fixed-bed reactors are the most important type of reactor for the synthesis of largescale basic chemicals and intermediates. In these reactors, the reaction takes place in the form of a .

Front End CDHydro - raw gas hydrogenation achieved

Front End CDHydro - raw gas hydrogenation achieved

In the conventional steamcracker flowsheet, the selective hydrogenation of C2 and heavier acetylenes and dienes is accomplished in a series of fixed-bed reactor systems. As shown in Figure 1, the CDHydro process combines the hydrogenation step with the distillation step, thereby eliminating separate fixed-bed reactor systems.

Hydrogenation of 1,5,9‐cyclododecatriene in fixed‐bed .

Hydrogenation of 1,5,9‐cyclododecatriene in fixed‐bed .

Apr 16, 2004 · More, Robert L. Augustine, Stephen R. Schmidt, Continuous Liquid-Phase Hydrogenation of 1,4-Butynediol to High-Purity 1,4-Butanediol over Particulate Raney Nickel Catalyst in a Fixed Bed Reactor, Organic Process Research & Development, 10.1021/acs.oprd.6b00375, 21, 3, (327-335), (2017).

Modeling of Fixed-Bed Reactor for Hydrogenation of .

Modeling of Fixed-Bed Reactor for Hydrogenation of .

fixed-bed reactor, hydrogenation, numerical approach, pseudo-homogeneous model, catalytic reaction. 1. Introduction . Fixed-bed reactors are including one or more tube filled with catalyst particles and work vertically. Small amount of acetylene is harmful to the catalyst used in polymerization. Therefore, the acetylene in the

Gaseous Catalytic Hydrogenation of Nitrobenzene to Aniline .

Gaseous Catalytic Hydrogenation of Nitrobenzene to Aniline .

Gaseous hydrogenation of nitrobenzene over a Cu/SiO2 catalyst has been studied in a two-stage and in a single-stage fluidized bed reactor, at 513–553 K and atmospheric pressure.

The effect of potassium on Cu/Al2O3 catalysts for the .

The effect of potassium on Cu/Al2O3 catalysts for the .

The highly efficient selective hydrogenation of 5-hydroxymethylfurfural (HMF) to 2,5-bis(hydroxymethyl)furan (BHMF) was achieved in a fixed-bed reactor by using inexpensive potassium-doped Cu/Al 2 O 3 catalysts, which were prepared via a successive incipient wetness impregnation method. The characterization results revealed that the introduction of potassium could adjust the size .

Gaseous Catalytic Hydrogenation of Nitrobenzene to Aniline .

Gaseous Catalytic Hydrogenation of Nitrobenzene to Aniline .

Gaseous hydrogenation of nitrobenzene over a Cu/SiO2 catalyst has been studied in a two-stage and in a single-stage fluidized bed reactor, at 513–553 K and atmospheric pressure.

Hydrogenation of 1,5,9‐cyclododecatriene in fixed‐bed .

Hydrogenation of 1,5,9‐cyclododecatriene in fixed‐bed .

Apr 16, 2004 · The conversions and global hydrogenation rate were significantly higher in a trickle‐bed reactor than in the upflow reactor. Similarly, a significant temperature rise in the catalyst bed was observed for the downflow operation compared to the upflow mode, which is explained from wetting characteristics of the catalyst bed.

Dynamic Simulation of Adiabatic Catalytic Fixed-Bed .

Dynamic Simulation of Adiabatic Catalytic Fixed-Bed .

Fixed-bed tubular reactors are used widely in chemical process industries, for example, selective hydrogenation of acetylene to ethylene in a naphtha cracking plant. A dynamic model is required when the effect of large fluctuations with time in influent stream (temperature, pressure, flow rate, and/or composition) on the reactor performance is .

Evaluation of Sponge Metal Catalysts in a Trickle Bed .

Evaluation of Sponge Metal Catalysts in a Trickle Bed .

Nine sponge nickel catalysts were assessed for the reduction of an aliphatic nitro group in a trickle bed reactor. Focused beam reflectance measurement (FBRM) was used to assess the mechanical strength and particle size distribution of the catalysts. The continuous reduction of (S)-7-methyl-7-(nitromethyl)-1,4-dioxaspiro[4.5]decane was investigated using a Raney nickel catalyst in a fixed bed .

Catalytic transfer hydrogenation of maleic acid with .

Catalytic transfer hydrogenation of maleic acid with .

In a fixed bed reactor under a continuous flow of 15 wt% of MAc at a WHSV = 12 h −1 (contact time = 5 min), at 150 °C, 10 bar of N 2 and using a formic acid/maleic acid molar ratio = 1, a yield of SAc close to 98% was obtained, equivalent to a productivity of 1.87 g .

750 Gal Glass Lined Reactor | 5502 | New Used and Surplus .

750 Gal Glass Lined Reactor | 5502 | New Used and Surplus .

Hydrogenation is a billion-dollar industry. Hydrogenating means to add hydrogen to something. . Hydrocracking & Hydrotreating Industrially, hydrotreating and hydrocracking are performed in down flow 'trickle bed reactors', where the gas and the liquid feed are sent concurrently through a fixed bed plug flow reactor. Although the flow .

Developments in Hydrogenation Technology for Fine .

Developments in Hydrogenation Technology for Fine .

and Tsui illustrates the many reactor types available for hydrogenation and other types of gas-liquid mass transfer [2††]. In traditional, stirred tank reactors, hydrogen is fed through a sparge tube below a flat-blade Rushton turbine; however, the effectiveness of mixing and mass transfer

Modeling of fixed bed reactor for coal tar hydrogenation .

Modeling of fixed bed reactor for coal tar hydrogenation .

The hydrogenation experiments were carried out in a bench scale unit as shown in Fig. 1.The reaction section consists of two stage fixed bed in series, the internal diameter of each stage reactor is 2.3 cm and entire reactor length is of 80 cm.

Flexible Operation of Fixed‐Bed Reactors for a Catalytic .

Flexible Operation of Fixed‐Bed Reactors for a Catalytic .

Dec 16, 2015 · CO 2 hydrogenation over Fe catalysts to short‐chain hydrocarbons, which can be used to adjust the heating value of substitute natural gas, is investigated as example reaction. A specific reactor design for flexible operation with gas recycling is a consequence of the constraints resulting from product partial pressures and reaction temperature.

Generic Modeling of Fixed-bed Catalytic Reactors

Generic Modeling of Fixed-bed Catalytic Reactors

In fixed-bed catalytic reactors (FBCRs), catalyst particles are fixed to reactor bed, while . Metaxas et al. (2006) researched liquid-phase catalytic hydrogenation of benzene in a three-phase bench-scale reactor in downflow mode at high pressures and temperatures.

C4 Selective Hydrogenation - BASF Catalysts

C4 Selective Hydrogenation - BASF Catalysts

Catalyst E 347 1/8" is suited for fixed bed hydrogenation applications such as diolefin removal from pyrolysis gasoline or selective hydrogenation of olefinic C4 streams (removal of butadiene). This palladium on alumina catalyst is specially formulated for fixed bed hydrogenation applications where controlled pore distribution and surface are .

Developments in Hydrogenation Technology for Fine .

Developments in Hydrogenation Technology for Fine .

and Tsui illustrates the many reactor types available for hydrogenation and other types of gas-liquid mass transfer [2††]. In traditional, stirred tank reactors, hydrogen is fed through a sparge tube below a flat-blade Rushton turbine; however, the effectiveness of mixing and mass transfer

Hydrogenation of butynediol to cis‐butenediol catalyzed by .

Hydrogenation of butynediol to cis‐butenediol catalyzed by .

J.M. Winterbottom, H. Marwan, J. Viladevall, S. Sharma, S. Raymahasay, Selective catalytic hydrogenation of 2-butyne-1,4-diol to cis-2-butene-1,4-diol in mass transfer efficient slurry reactors, Heterogeneous Catalysis and Fine Chemicals IV, Proceedings of the 4th International Symposium on Heterogeneous Catalysis and Fine Chemicals, 10.1016 .