Unit Operations Lab in Bangladesh

EDIBON teaching and research units for the unit operations laboratory, supplied, installed and commissioned in Bangladesh by Vvon with faculty training included. 57 units available.

57 products from 1 manufacturer: EDIBON.

Products

• CAGC: Computer Controlled Gas Absorption Column — EDIBON: A packed absorption column for studying hydrodynamics and mass transfer between a gas and a liquid. Ammonia or carbon dioxide is absorbed from an air mixture into water flowing down the packing, so students can measure pressure drop, flooding and absorption efficiency.
• CAG/CD: Double Column Gas Absorption Unit — EDIBON: A two column unit that covers both absorption and desorption in packed towers. Working with the columns in sequence lets students follow a solute into the liquid and then strip it out again, reproducing the operating conditions used in chemical and environmental plant.
• CAPC: Computer Controlled Wetted Wall Gas Absorption Column — EDIBON: A wetted wall column in which a thin liquid film flows down a tube in contact with a gas stream. The oxygen and deoxygenated water system is used, with a desorption column supplying the stripped water, so film mass transfer coefficients can be measured directly.
• LPSA: Laboratory Scale Pressure Swing Adsorption Unit — EDIBON: A laboratory plant for running adsorption tests by the pressure swing technique. A mixture can be synthesised from up to four gas feeds and then separated on the adsorbent bed, so students can study cycle time, purge ratio and product purity.
• QALFC: Computer Controlled Fixed Bed Adsorption Unit — EDIBON: A fixed bed column for demonstrating gas adsorption. Students follow the movement of the mass transfer zone through the bed, record breakthrough curves and study how flow rate, concentration and bed depth change the adsorption capacity obtained.
• QSAC: Computer Controlled Adsorptive Air Drying Unit — EDIBON: A damp air drying plant that removes moisture by adsorption, with transparent columns and continuous regeneration of the adsorbent. Two circuits allow one column to dry the air while the other is regenerated, which is how industrial dryers alternate in service.
• FPCC: Computer Controlled Unit to Study Flow through Packed Columns — EDIBON: A transparent packed column that can be run with water, air or both together to simulate an absorption column. It is used to measure pressure drop against gas and liquid rates, to observe loading and flooding and to compare different packing materials.
• TCEC: Computer Controlled Boiling Heat Transfer Unit — EDIBON: A unit in which a heating element mounted horizontally inside a glass chamber boils a refrigerant, so the boiling curve can be traced. Students observe convective, nucleate and film boiling, locate the critical heat flux and measure condensation on the cooling coil.
• TFEC: Computer Controlled Flow Boiling Demonstration Unit — EDIBON: A demonstration unit built around two concentric glass tubes carrying a refrigerant and a heating fluid in cross flow. It allows the flow boiling regimes inside a tube to be seen and measured, which supports teaching on evaporators and two phase flow.
• QUCC: Computer Controlled Crystallization Unit — EDIBON: A unit for the study of cooling crystallisation, aimed at substances whose solubility changes with temperature. Students control the cooling profile and agitation and examine how they affect nucleation, crystal growth and the size distribution of the product.
• QUCC/A: Computer Controlled Advanced Crystallization Unit — EDIBON: An advanced cooling crystallisation unit that allows the industrial mass transfer operation to be seen and measured in more detail than the basic model. It supports work on supersaturation, seeding, residence time and the recovery of the crystalline product.
• QDTLC: Computer Controlled Liquid Mass Transfer and Diffusion Unit — EDIBON: A teaching unit for measuring diffusion in liquid systems. Students determine diffusion coefficients from concentration measurements and relate them to temperature and solution composition, which introduces the basic theory behind mass transfer operations.
• QDTGC: Computer Controlled Gaseous Mass Transfer and Diffusion Unit — EDIBON: A unit for studying the diffusion of a volatile liquid vapour into a gas. The rate of evaporation from a capillary is measured against temperature and air flow, allowing the gas phase diffusion coefficient to be calculated and compared with published values.
• UDCC/A: Advanced Computer Controlled Continuous Destillation Unit — EDIBON: A continuous fractional distillation unit built around a packed column that can be operated with different packings. A feed system supplies the column while reflux, boil up and product rates are controlled, so students can carry out full mass and energy balances.
• UDCC: Computer Controlled Continuous Distillation Unit — EDIBON: A continuous distillation unit with a boiler that accepts interchangeable columns, an eight plate column and a packed column with Raschig rings being supplied. Students compare plate and packed operation and study reflux ratio, plate efficiency and product composition.
• UDDC: Computer Controlled Batch Distillation Unit — EDIBON: A batch distillation unit with a boiler that accepts interchangeable plate and packed columns. It is used to follow the change in still and distillate composition through a batch, and to study the effect of reflux ratio on separation and on cycle time.
• TTEC: Computer Controlled Bench Top Cooling Tower — EDIBON: A bench top cooling tower in which heated water is pumped to distribution manifolds at the top of the packing while air is drawn upwards. Students measure approach, range and cooling capacity and construct the energy and mass balance for the tower.
• SBANC: Computer Controlled Tray Drier — EDIBON: A tray drier consisting of a tunnel through which heated air is passed over trays holding the wet solid. Sample weight, air temperature, humidity and velocity are followed so that drying rate curves and the critical moisture content can be determined.
• SSPC: Computer Controlled Spray Drier — EDIBON: A spray drier for producing powders from aqueous emulsions, solutions, suspensions and colloids. A peristaltic pump feeds the liquid to a nozzle in the drying chamber, so students can relate inlet temperature, feed rate and atomisation to powder yield and moisture.
• SDCC: Computer Controlled Spray Dryer and Chiller Unit — EDIBON: A unit that combines spray drying and spray chilling in one chamber, so liquids can be turned into powders either by evaporating the solvent or by solidifying a melt. It allows the two operating modes to be compared on the same feed material.
• BLIO: Freeze Dryer — EDIBON: A freeze dryer that carries out lyophilisation inside a transparent chamber, with control of chamber pressure and of the heated trays. Students follow the freezing, primary drying and secondary drying stages and measure the moisture removed from the product.
• EPAC: Computer Controlled Rising Film Evaporator — EDIBON: A rising film evaporator used to concentrate a non-volatile solute by evaporating water from the feed. The design suits heat sensitive products because contact time is short, and students can measure evaporation capacity, steam economy and product concentration.
• EPDC/C: Computer Controlled Falling Film Evaporator — EDIBON: A falling film evaporator in which the feed flows down the inside of a heated tube as a thin film. It gives high heat transfer coefficients at low temperature difference, so students can compare its performance with rising film operation on the same duty.
• EDPAC: Computer Controlled Double Effect Rising Film Evaporator — EDIBON: A two effect evaporator with single glass tube evaporators that can be run in series, in parallel or as a true double effect. It lets students measure the steam economy gained by reusing vapour from the first effect to heat the second.
• EPFC: Computer Controlled Thin Film Evaporator — EDIBON: A thin film evaporator in which a rotating wiper spreads the feed over the heated wall. It is used to study the operating variables that control thin film evaporation, and suits viscous or heat sensitive products that cannot be handled in a conventional evaporator.
• UELLC: Computer Controlled Liquid-Liquid Extraction Unit — EDIBON: A laboratory scale column for separating the components of a liquid mixture by contacting it with an immiscible solvent. Students measure the distribution of solute between the phases, determine stage efficiency and study the effect of flow ratio on recovery.
• UESLC: Computer Controlled Solid-Liquid Extraction Unit — EDIBON: A continuous multistage extraction unit that removes a soluble fraction from a solid using a solvent in countercurrent flow. It teaches leaching, stage calculations and solvent recovery, and lets students study the effect of solvent rate on extraction yield.
• QEDC: Computer Controlled Batch Solvent Extraction and Desolventising Unit — EDIBON: A batch unit for solid and liquid extraction that is particularly suited to recovering oil from oily seeds and then desolventising the meal. Students follow both the extraction and the solvent stripping stages and measure the oil recovered.
• TFUC: Computer Controlled Continuous and Batch Filtration Unit — EDIBON: A filtration unit that carries two different filters, a vertical nylon plate filter and a second filter element, so batch and continuous filtration can be compared. Students measure filtrate rate against time and study cake build up and filter medium resistance.
• AFPMC: Computer Controlled Plate and Frame Filter Press — EDIBON: A plate and frame filter press in which the number of frames and the type of filter cloth can be changed. A suspension is pumped through the press so that students can study filtration and clarification, cake washing and the pressure and flow relationship.
• EMLS: Liquid/Solid Mixing Unit — EDIBON: A mixing rig with a variable speed motor and mechanical fittings that accept a range of interchangeable agitators. It is used to study the mixing of liquids and solids, including power consumption, impeller choice, baffling and the time needed to reach a uniform mixture.
• QCDIC: Computer Controlled Disc Centrifuge — EDIBON: A disc stack centrifuge for studying the separation of emulsions by centrifugal force. It reproduces the operating principles of industrial centrifuges, so students can relate separation efficiency to rotational speed, feed rate and the density difference of the phases.
• PFTC: Computer Controlled Drum Cell Filter — EDIBON: A rotary drum filter for studying the continuous filtration of liquids carrying suspended solids. The drum, vacuum system and scraper can be watched in operation, and students measure filtrate rate and cake moisture against drum speed and submergence.
• LFFC: Computer Controlled Fixed and Fluidized Bed Unit — EDIBON: A unit with two transparent columns, one for air and one for water, so flow through a particle bed can be studied in both fluids at once. Students measure pressure drop across fixed and fluidised beds, find the minimum fluidisation velocity and check the Carman Kozeny equation.
• TTLFC: Computer Controlled Fluidization and Fluid Bed Heat Transfer Unit — EDIBON: A unit that gives visual and quantitative results for air flowing through a packed bed and then a fluidised bed of granular material. A heated probe allows bed to surface heat transfer coefficients to be measured as the bed passes from fixed to fluidised.
• EECC: Computer Controlled Corrosion Study Unit — EDIBON: A unit that runs up to eight corrosion cells at the same time, each holding a test specimen mounted so that unwanted secondary effects are avoided. It is used to compare corrosion rates for different metals, electrolytes and protection methods.
• EIIC: Computer Controlled Ion Exchange Unit — EDIBON: A self contained unit with two transparent columns to be filled with anionic and cationic resins, plus a spare column and a controlled feed pump. Students follow demineralisation, measure breakthrough by conductivity and carry out resin regeneration.
• QMS: Solids Handling Study Unit — EDIBON: A bench that introduces the handling of bulk solids, covering size reduction, mixing, transport, discharge and weighing. It gives students practical work on hopper flow, conveying and particle size analysis, which are often missing from a chemical engineering course.
• SCS/60/CTS: Computer Controlled and Touch Screen 60 l Semicontinuous Centrifugal Separator — EDIBON: A 60 l semicontinuous centrifugal separator supplied as a pilot plant, used by EDIBON to demonstrate the recovery of lignin from lignocellulosic biomass. It allows solid and liquid separation at pilot scale to be studied under computer and touch screen control.
• CAG: Gas Absorption Column — EDIBON: Designed to study hydrodynamic and absorption processes in a packed column, the Gas Absorption Column, "CAG", is a laboratory-scale unit.
• QUCB: Crystallization Unit — EDIBON: Designed by EDIBON, the Crystallization Unit, "QUCB", is a unit for studying the cooling crystallization process. It was developed to study the crystallization reaction of constituents whose solubility changes with temperature.
• QUCB/A: Advanced Crystallization Unit — EDIBON: Designed by EDIBON, the Advanced Crystallization Unit, "QUCB/A", is a crystallization unit based on the cooling method. It allows observation and study of the mass transfer industrial operation in which a solid is formed from a homogeneous phase (dissolved solute).
• QDTG: Gaseous Mass Transfer and Diffusion Unit — EDIBON: Designed by EDIBON, the Gaseous Mass Transfer and Diffusion Unit, "QDTG", allows students to become familiar with the theoretical concepts of mass transfer unit operations, specifically the diffusion of a volatile liquid in an inert gas. In doing so, it yields experimental data and results that are useful for a practical understanding of the process and, therefore, for the technical training of students.
• QDTL: Liquid Mass Transfer and Diffusion Unit — EDIBON: Designed by EDIBON, the Liquid Mass Transfer and Diffusion Unit, "QDTL", is a teaching unit that allows students to become familiar with the notions of mass transfer theory, especially diffusion in liquid systems. This yields experimental data and results that are useful for an ideal practical understanding of the process and, consequently, for the technical teaching of students.
• UDCB: Continuous Distillation Unit — EDIBON: Designed by EDIBON, the Distillation Unit, "UDCB", is a powerful laboratory tool for studying the variables that affect the distillation process.
• UDDB: Batch Distillation Unit — EDIBON: Designed by EDIBON, the Batch Distillation Unit, "UDDB", supports the experimental study of the principles and variables involved in the distillation process.
• SSPB: Spray Drier — EDIBON: Designed by EDIBON, the Spray Drier, "SSPB", makes it possible to study processes involving aqueous emulsions, solutions, suspensions and colloidal solutions.
• EDPAB: Double Effect Rising Film Evaporator — EDIBON: Designed by EDIBON, the "EDPAB" unit makes it possible to observe and control a serial, parallel or double effect evaporation process.
• EPAB: Rising Film Evaporator — EDIBON: Designed by EDIBON, the Rising Film Evaporator, "EPAB", is used to study the operating processes of a rising film evaporator. It monitors all the variables needed for a complete study of the process under the working conditions and investigates the effects of varying process parameters, such as vacuum, temperature, flow, etc., on rising film evaporation.
• UELL: Liquid-Liquid Extraction Unit — EDIBON: Continuous extraction of one or several components using a solvent can be studied with the Liquid-Liquid Extraction Unit, "UELL". Contact between the two phases takes place inside the vertically oriented packed column, where they circulate in countercurrent.
• UESLB: Solid-Liquid Extraction Unit — EDIBON: Designed by EDIBON, the Solid-Liquid Extraction Unit, "UELSB", allows a continuous, countercurrent solid-liquid extraction process to be carried out. This is the method most commonly used in industry, because it is the one with the highest efficiency.
• EFLP: Deep Bed Filter Unit — EDIBON: Filtration in open and closed circuit can be studied with the Deep Bed Filter Unit, "EFLP", which also makes it possible to visualise the bed washing process.
• SCS/1000/CTS: Computer Controlled and Touch Screen 1000 l Semicontinuous Centrifugal Separator — EDIBON: Designed by EDIBON, the Computer Controlled and Touch Screen 1000 l Semicontinuous Centrifugal Separator, "SCS/1000/CTS", is a pilot plant that demonstrates the obtaining of lignin from lignocellulosic biomass for further research and study.
• TFUB: Continuous and Batch Filtration Unit — EDIBON: The principles of continuous and batch filtration under constant pressure and constant flow operation are demonstrated by the Continuous and Batch Filtration Unit, "TFUB".
• LFF: Fixed and Fluidized Bed Unit — EDIBON: The flow of a fluid through a bed of particles, both fixed and fluidized, can be fully studied using the Fixed and Fluidized Bed Unit, "LFF".
• EEC: Corrosion Study Unit — EDIBON: Designed by EDIBON, the Corrosion Study Unit, "EEC", allows the simultaneous study of corrosion in up to eight corrosion cells.
• EII: Ion Exchange Unit — EDIBON: Designed for the study of water softening in a single bed, the Ion Exchange Unit, "EII", also supports water demineralization in a double bed system.

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