Fixed-bed Reactor Acetylene Reaction Catalytic Device
Basic Configuration Requirements
This fixed-bed reaction device is a practical gas-liquid-solid on-line reaction evaluation system, which can realise gas-solid-liquid-solid-gas-liquid-gas-liquid-solid reaction process, and use the temperature controller to control the temperature of the reaction accurately and complete the catalytic reaction. The tail end of the reactor is equipped with an interface, which can be connected with analytical instruments such as chromatograph, mass spectrometer, flue gas analyser, etc., and the reaction product enters into the optional analytical instruments for on-line analysis, so the device can be used to study the reaction performance of the catalyst such as conversion rate, product selectivity and catalyst life.
The device uses an open-type insulated tubular reactor with good heating stability and temperature uniformity, and the device provides a single or multiple material inlets, which can be multiple gas, liquid, gas carrying liquid vapour or liquid entering and then gasified. The back end of the reactor can be equipped with coolers, liquefiers, etc. to separate the products of the reaction. Separated gas products can be individually analysed on-line in the analytical instrument, and liquid products are collected and then fed into the sample for analysis. The gas-liquid separator is equipped with a three-way valve at the inlet of the upper end of the separator, through the switching of the three-way valve can be replenished to the collector to prevent the catalyst loss due to the pressure difference between the collector and the discharge of the liquid.
The device has the advantages of compact structure, small volume, precise flow and temperature control, easy to dismantle and load catalyst, as well as specialised design according to users' requirements. The device is widely used in the laboratory research of scientific research institutes, for example, for the evaluation of catalyst reaction performance and the study of catalyst structure-effect relationship.
Features
1. Using stainless steel reaction tube with metal arc surface hard seal structure way at both ends;
2. Adopting single-section open-type heat preservation reactor with high temperature resistance, good heating stability and temperature uniformity;
3. The open-type heat preservation reactor adopts double thermocouples for temperature control and display, and the temperature measuring and displaying thermocouples are all inserted under the catalyst from bottom to top;
4. The intelligent controller is used to control the flow rate of the mass flow meter and the temperature of the reactor, thus realising the modulation of the reaction conditions of the whole system;
5. The reactor is a special structure, with M-type heaters placed in the hollow area at the upper and lower ends of the reactor to heat up the hollow area and ensure that there is no cold spot after the carburettor and the reaction pipe import and export pipelines and the reaction pipe joints, and that there is no need to dismantle the heating tape repeatedly when dismantling the reaction pipe;
6. The tail end of the reactor is equipped with a three-way valve, through the operation of the valve handle of the three-way valve can control the reaction gas into the gas-liquid separator (condenser and collector) or in the heat preservation state (pipeline insulation throughout the whole process) directly into the analytical instruments connected to the tail end of the reactor for testing;
7. The upper end of the collector is equipped with a three-way valve, through the switching of which the collector can be replenished to prevent catalyst loss due to pressure difference in the collector discharge;
8. It can be equipped with temperature alarm system, low flow alarm and pressure relief system, which is safe and reliable;
9. The gas path on the panel is intuitively visible, which is convenient for the experimenter to operate away from the computer;
Technical Specifications
1.reactor design pressure 1-12 MPa, reaction pressure 1~10 MPa, the whole set of devices need to be resistant to corrosion of highly corrosive liquids, the use of special materials reaction tube, graphite gasket sealing at both ends, the reaction tube pressure resistance 1-10 MPa, not less than 10 MPa back pressure valve;
2. two-way gas, a liquid, of which the gas using a mass flow meter to control the flow, the liquid using a high-pressure pump quantitative, through a long thin needle introduced into the carburetor for gasification, gas flow meter precision ± 0.5% F.S, accuracy ± 0.5% F.S, pressure 1-10 MPa, the design needs to meet the more than three kinds of gas on-line dynamic distribution of gas, pulse reaction, and transient gas switching, with a digital High-pressure infusion pump: flow rate and setting range 0.010~4.999 ml/min, maximum pressure not less than 42 MPa, flow rate accuracy: ±0.5%, flow rate accuracy: ±0.2%;
3. Adopt open-type heat preservation reactor with high temperature resistance, good heating stability and temperature uniformity, using fibre sintered chamber, electric furnace wire heating, high linearity of programmed temperature control, reactor temperature: 25~900 oC; reactor temperature curve: linearity can reach 99.999%, repeatability not less than 1 oC; programmed rate of temperature rise: 0.5~90 oC/min, can be set up to program temperature reduction Procedure;
4. Adopting double thermocouples for temperature control and display, the temperature measuring and displaying thermocouple is inserted above the catalyst from top to bottom;
5. Equipped with special material reaction tube (resistant to high corrosive liquid corrosion), length between hexagonal 300-327 mm, ID 10-14 mm, OD 18-22 mm, straight tube, graphite gasket sealing at both ends, with liner tube, catalyst loading in the reaction tube: 0-6 ml (can be customised according to customers' requirements), fast function of cooling down of the reactor;
6. Equipped with a special structure mixer to achieve uniform gas mixing through repeated expansion and contraction of gas during gas flow, so it can be used for online gas distribution;
7. Supporting the corresponding control table, each section of the furnace are used in the programme to raise the temperature control table, equipped with serial function and dual input mode, take the channel in the measured value of the low or high main control measurement value;
8. The reactor needs to adopt special structure, the hollow area at the upper end of the reactor needs to adopt M-type heater to heat the hollow area to prevent the existence of cold spots, and there is no need to wrap the heating tape around the joints of the reaction tube, which is convenient for the dismantling of the reaction tube; Thermal insulation box: 25~300 oC, with the temperature control accuracy of <±1 oC; Equipped with high-pressure make-up gas to reduce the pressure difference and prevent the loss of catalyst;
9. The tail end of the reactor is equipped with a gas-liquid separator, which is a double-layer structure, made of stainless steel, with a condensation coil inside, and the outer layer is passed into the condensate for cooling, in order to carry out gas-liquid separation of the reaction products; the gas-liquid separator is a double-layer structure, with the mezzanine layer going to the condensate, with the outer volume of 100-120 ml and the inner volume of 40-50 ml;
10. with computer programme software, can control the reactor temperature and gas flow, display the reaction temperature, and real-time recording of temperature and flow rate curve; and can edit the heater heating, flow rate settings, intensity, power and other actions, to achieve one-key operation; and equipped with a complete test software, the test program can be programmed according to customer requirements, and can be completed to determine the results of the automated generation, and at the same time can be determined on the results of data post-processing. At the same time, the measured results can be post-processed;
11. Adopting aluminium profile frame, aluminium alloy panel and combined mode, customers can make part of the adjustment by themselves.
Delivery of technical data
1 set of operation manual
1 set of certificate
1 set of warranty card
1 set of device general arrangement diagram and PID flow chart
