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Publication No: EP4519651 [European Patent Office (EPO)] Application No: EP2022940802
Title: A THERMOGRAVIMETRIC REACTOR (TGR) TO STUDY WEIGHT CHANGES OF SOLIDS AND A PROCESS THEREOF
Publication Date: 12-03-2025 File Date: 06-05-2022
Inventor(s): Chavan, Prakash Dhondiram; Saha, Sujan; Sahu, Gajanan; Datta, Sudipta; Chauhan, Vishal; Dhaigude, Nilesh Dhananjay; Singh, Pradeep Kumar
IPC Classification: G01N 000500
Abstract:
Thermogravimetric Reactor (TGR) and process to study weight change behaviour of carbonaceous solids/catalysts during thermo-chemical reactions in gaseous environment up to operating temperature of 1000ºC and at atmospheric pressure are disclosed. The device includes vertical tube reactor, digital weighing balance, gas feeding system equipped with volumetric flow controllers, rotameters, isolation valves and non-return valves to introduce inert and reactive gases into the reactor. It has a movable electrical furnace heater for sudden heating/cooling of sample as per requirement. It has sample feeding/loading system comprising containers of different sizes and shapes with a hanging arrangement. There is arrangement to test the product gas composition with on line gas analyzer in the exit line or collecting the outgoing gas from the sampling port for off line gas analysis. The system has control panel to store and display data including process parameters.
Startup Options: ADVANTAGES OF THE INVENTION
  • The present device has a wide range of operational flexibility for temperature, sample type (lump/granular/powder form), sample weight, gaseous reactant, residence time, particle size, and particle density.
  •  It has a balance chamber above the reactor tube to house a digital weighing balance to measure the accurate weight of the solid materials up to 100 g with an accuracy of 0.0001%. 
  • The said device has gas cooling, condensing, scrubbing and cleaning system to remove contaminants from the product gas.
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Industrial Applications Electromagnetics [Physics] Instrumentation, Appliances, Devices Applications [Instrumentation, Appliances, Devices] Measurement [Instrumentation, Appliances, Devices] Thermodynamics [Physics]