This will be done by developing and creating a training program that will sufficiently train the participants by conducting a pyroprocessing training with necessary theoretical presentations to acquaint the personnel with the technology and procedures for operating pyroprocessing systems, including preheater, calciner, kiln, and clinker cooler.

Thermodynamic modeling of the molten salt systems is critical in the design of advanced nuclear power plants, materials recycling, and many other important clean energy applications. As one of the most capable computational thermodynamic approaches, the CALPHAD (Calculation of Phase Diagrams) method has been widely used for …

et al., Pyroprocessing Technology Development at KAERI. was 325 A by extrapolation. As the current efficiency of. this ER was 80%, the throughput was 17.9 kg U in a day. If more than 40 kg of ...

This is the first build for a full system pyroprocessing model intended to quantify safeguardability for different facility designs and material throughput goals. The model is developed with Python. It offers a modular environment which is conducive to the use of discrete event simulation and the batch nature of pyroprocessing.

At the heart of the Portland Cement manufacturing process is the pyroprocessing system. This system transforms the raw mix into clinkers, which are grey, glass-hard, spherically shaped nodules that …

Several fundamental differences between the nature of aqueous reprocessing flow sheets and those proposed in pyroprocessing present substantial challenges to deploying current techniques developed for aqueous flow sheets directly to pyroprocessing systems. Briefly, pyroprocessing is a batch process, while PUREX is …

Idaho National Laboratory, P.O. Box 1625, Idaho Falls, ID 83416-6180, USA Email:[email protected]. At the end of May 2007, 830 and 2600 kilograms of EBR-II driver and blanket metal fuel have been treated by a pyroprocess since spent fuel operations began in June 1996. A new metal waste furnace has completed out-of-cell …

The ultimate goal is to demonstrate the viability of pyroprocessing as a practical solution to used fuel management. 1.2 Historical Background The conceptual design under this CRADA project was based on work …

Pyrorotor ®. Discover the Pyrorotor – our most advanced technology for processing alternative fuels. Learn more. Pyroredox ®. Say no to NO X with the Pyrodedox ®: the ultimate solution for cost-effective NO X emissions reduction. Learn more. Rotary Kilns. …

The key technology of pyroprocessing is the electrorefining process, where the materials are electrochemically transported from anode to the cathode through the electrolyte. Modeling can be a promising method to optimize system design, predict the separation efficiency, and monitor the operations.

Abstract. A compact, efficient method for recycling IFR fuel is being developed. This method, known as pyroprocessing, capitalizes on the use of metal fuel …

What we do. We focus on innovative, commercially viable electrochemical processes for the back end of the nuclear fuel cycle. We can efficiently recover actinides to recycle into fresh fuel, immobilize waste in durable waste forms, and model the long-term performance of waste forms in possible disposal facilities. We recently designed highly ...

Unlike the PUREX process, which produces a pure plutonium product, pyro-processing produces a depleted uranium ingot and a mixed ingot of depleted uranium and transuranic elements (neptunium, plutonium, americium, and curium) in the ratio 1:1. This seems to suggest that pyro-processing has a lower nuclear proliferation risk …

The key step of the pyroprocessing is the electrorefining of uranium in LiCl-KCl molten salt. ... is a system that consists of a fast-spectrum nuclear reactor that uses metallic fuel and liquid ...

@article{osti_10185588, title = {Development of IFR pyroprocessing technology}, author = {Laidler, J J and Battles, J E and Miller, W E and Gay, E C}, abstractNote = {A metallic fuel alloy, nominally U-20Pu-10Zr, is the key element of the IFR fuel cycle. This metallic fuel permits the use of an innovative reprocessing method, …

Pyroprocessing of spent nuclear fuels uses the LiCl–KCl molten salt as an electrolyte, which contains dissolved fission products and can be very corrosive to the structural alloys.

A compact, efficient method for recycling IFR fuel is being developed. This method, known as pyroprocessing, capitalizes on the use of metal fuel in the IFR and provides separation of actinide elements from fission products by means of an electrorefining step. The process of electrorefining is based on well-understood …

Electrochemical reprocessing, also referred to as pyroprocessing, is a technique for recycling actinides from used nuclear fuel (UNF) to produce fuel for future reactors. Here, UNF is dissolved in …

This project addresses the problem of achieving accurate material control and accountability (MC&A) around pyroprocessing electrorefiner systems. Spent nuclear fuel pyroprocessing poses a unique challenge with respect to reprocessing technology in that the fuel is never fully dissolved in the process fluid. In this case, the process fluid is ...

Pyroprocessing has been explored for metal fuel cycle and nitride fuel cycle in Japan. Metal fuel fast reactor, which can achieve a high breeding ratio over 1.3, and its fuel cycle is a compact system by integrating pyroprocessing. Oxide fuel can be also treated by converting to metals by reduction. Separation of transuranium elements from …

This project addresses the problem of achieving accurate material control and accountability (MC&A) around pyroprocessing electrorefiner systems. Spent nuclear fuel pyroprocessing poses a unique challenge with respect to reprocessing technology in that the fuel is never fully dissolved in the process fluid. In this case, the process fluid is ...

And that is the reason why. are the most important factors in the success of thyssenkrupp Polysius clinker manufacturing systems. While meeting the range of requirements imposed on the burning system, the plant supplier has the crucial task of optimising the overall pyroprocessing concept by combining high-performance individual machines.

@article{osti_7037207, title = {An overview of the formation of SO sub x and NO sub x in various pyroprocessing systems}, author = {Nielsen, P B and Jepsen, O L}, abstractNote = {The regulations on SO{sub 2} and NO{sub x} emission from cement plants in the United States are briefly described in this paper and compared with European …

monitoring the mass of liquid salt in molten salt systems, the gamma spectroscopy data of salt samples from the pyroprocessing facilities in Idaho National Laboratory were acquired and analyzed. The primary focus is the uncertainty analysis of the gamma radioactivity of 154Eu isotope in the molten salts.

The Pyroprocessing Files. The article by Ralph Vartabedian in the Los Angeles Times highlights the failure of the Department of Energy's decades-long effort to chemically process a stockpile of spent nuclear fuel at Idaho National Laboratory, ostensibly to convert the waste to forms that would be safer for disposal in a geologic repository.

An alternative approach to monitoring the pyrochemical process (pyroprocessing) for spent nuclear fuel treatment is proposed and examined. This approach relies on modeling and the real-time analysis of process readings. Using an electrorefiner model, named ERAD, cathode potential and cell current were identified as …

As the input feed to the system increases, a greater contribution of energy and exergy entering the system is spent on clinker formation, resulting in less energy and exergy being wasted from the system; thus, first and second law efficiencies increase. Although, the efficiency of the system improves by increasing the feed rate, the free lime ...

drive system with planetary gear unit, the splined kiln tyre, the inlet and outlet seals, the air-cooled inlet trough, and the hydraulic axial thrust system. However, the drive system with self-aligning pinion and the floating tyre (as a more favourably priced alternative to the splined tyre) are specific features of the 3-support kiln.

Reuse of ER salt would, thus, greatly reduce the volume of ceramic waste produced during the pyroprocessing of spent nuclear fuel. This final portion of the joint I-NERI research project is to demonstrate the separation of fission products from molten ER salt by two methods previously selected during phase more » two (FY-08) of this project.

Pyroprocessing. Fives designs and supplies high-performance pyroprocessing solutions, including complete burning lines. Its reliable and proven technologies, such as the rotary …