The Experts below are selected from a list of 1341 Experts worldwide ranked by ideXlab platform

Michel Fauconet - One of the best experts on this subject based on the ideXlab platform.

  • Intensification of falling film melt crystallization process through micro and milli-structured surfaces
    Chemical Engineering and Processing: Process Intensification, 2015
    Co-Authors: Marie Le Page Mostefa, Hervé Muhr, Anthony Biget, Edouard Palasari, Michel Fauconet
    Abstract:

    This paper shows how falling film melt crystallization process can be intensified by using micro/ milli-structured surfaces. This work takes part in the development of purification techniques of bio-acrylic acid. The current acrylic acid synthesis is based on propylene, a Petroleum Derivative. Thus, a new production route of a bio-acrylic acid is developed, based on glycerol, a green by-product of oleochemistry and biofuel industry. However, the impurity profile of this bio-AA differs from that of propylene-based: crude bio-AA contains much more propionic acid (PA). Classical purification techniques do not allow the separation of these two chemicals whose structures are similar. [1] showed that falling film melt crystallization halves propionic acid contents in purified AA with yields reaching 60% and purification time less than five hours. Increasing the exchange surface between the cold surface and the melt to purify can improve heat transfer, decrease purification time and intensify melt crystallization process. Thus, micro/milli-structured crystallization surfaces have been designed and tested. Results show that these innovative surfaces can increase productivity by 84%. Heat transfer has been modeled during the crystallization process, and it clearly appears that thermal gradient is divided by ten with milli-structured surface compared to smooth surface. ã

Marie Le Page Mostefa - One of the best experts on this subject based on the ideXlab platform.

  • Intensification of falling film melt crystallization process through micro and milli-structured surfaces
    Chemical Engineering and Processing: Process Intensification, 2015
    Co-Authors: Marie Le Page Mostefa, Hervé Muhr, Anthony Biget, Edouard Palasari, Michel Fauconet
    Abstract:

    This paper shows how falling film melt crystallization process can be intensified by using micro/ milli-structured surfaces. This work takes part in the development of purification techniques of bio-acrylic acid. The current acrylic acid synthesis is based on propylene, a Petroleum Derivative. Thus, a new production route of a bio-acrylic acid is developed, based on glycerol, a green by-product of oleochemistry and biofuel industry. However, the impurity profile of this bio-AA differs from that of propylene-based: crude bio-AA contains much more propionic acid (PA). Classical purification techniques do not allow the separation of these two chemicals whose structures are similar. [1] showed that falling film melt crystallization halves propionic acid contents in purified AA with yields reaching 60% and purification time less than five hours. Increasing the exchange surface between the cold surface and the melt to purify can improve heat transfer, decrease purification time and intensify melt crystallization process. Thus, micro/milli-structured crystallization surfaces have been designed and tested. Results show that these innovative surfaces can increase productivity by 84%. Heat transfer has been modeled during the crystallization process, and it clearly appears that thermal gradient is divided by ten with milli-structured surface compared to smooth surface. ã

Hervé Muhr - One of the best experts on this subject based on the ideXlab platform.

  • Intensification of falling film melt crystallization process through micro and milli-structured surfaces
    Chemical Engineering and Processing: Process Intensification, 2015
    Co-Authors: Marie Le Page Mostefa, Hervé Muhr, Anthony Biget, Edouard Palasari, Michel Fauconet
    Abstract:

    This paper shows how falling film melt crystallization process can be intensified by using micro/ milli-structured surfaces. This work takes part in the development of purification techniques of bio-acrylic acid. The current acrylic acid synthesis is based on propylene, a Petroleum Derivative. Thus, a new production route of a bio-acrylic acid is developed, based on glycerol, a green by-product of oleochemistry and biofuel industry. However, the impurity profile of this bio-AA differs from that of propylene-based: crude bio-AA contains much more propionic acid (PA). Classical purification techniques do not allow the separation of these two chemicals whose structures are similar. [1] showed that falling film melt crystallization halves propionic acid contents in purified AA with yields reaching 60% and purification time less than five hours. Increasing the exchange surface between the cold surface and the melt to purify can improve heat transfer, decrease purification time and intensify melt crystallization process. Thus, micro/milli-structured crystallization surfaces have been designed and tested. Results show that these innovative surfaces can increase productivity by 84%. Heat transfer has been modeled during the crystallization process, and it clearly appears that thermal gradient is divided by ten with milli-structured surface compared to smooth surface. ã

Anthony Biget - One of the best experts on this subject based on the ideXlab platform.

  • Intensification of falling film melt crystallization process through micro and milli-structured surfaces
    Chemical Engineering and Processing: Process Intensification, 2015
    Co-Authors: Marie Le Page Mostefa, Hervé Muhr, Anthony Biget, Edouard Palasari, Michel Fauconet
    Abstract:

    This paper shows how falling film melt crystallization process can be intensified by using micro/ milli-structured surfaces. This work takes part in the development of purification techniques of bio-acrylic acid. The current acrylic acid synthesis is based on propylene, a Petroleum Derivative. Thus, a new production route of a bio-acrylic acid is developed, based on glycerol, a green by-product of oleochemistry and biofuel industry. However, the impurity profile of this bio-AA differs from that of propylene-based: crude bio-AA contains much more propionic acid (PA). Classical purification techniques do not allow the separation of these two chemicals whose structures are similar. [1] showed that falling film melt crystallization halves propionic acid contents in purified AA with yields reaching 60% and purification time less than five hours. Increasing the exchange surface between the cold surface and the melt to purify can improve heat transfer, decrease purification time and intensify melt crystallization process. Thus, micro/milli-structured crystallization surfaces have been designed and tested. Results show that these innovative surfaces can increase productivity by 84%. Heat transfer has been modeled during the crystallization process, and it clearly appears that thermal gradient is divided by ten with milli-structured surface compared to smooth surface. ã

Edouard Palasari - One of the best experts on this subject based on the ideXlab platform.

  • Intensification of falling film melt crystallization process through micro and milli-structured surfaces
    Chemical Engineering and Processing: Process Intensification, 2015
    Co-Authors: Marie Le Page Mostefa, Hervé Muhr, Anthony Biget, Edouard Palasari, Michel Fauconet
    Abstract:

    This paper shows how falling film melt crystallization process can be intensified by using micro/ milli-structured surfaces. This work takes part in the development of purification techniques of bio-acrylic acid. The current acrylic acid synthesis is based on propylene, a Petroleum Derivative. Thus, a new production route of a bio-acrylic acid is developed, based on glycerol, a green by-product of oleochemistry and biofuel industry. However, the impurity profile of this bio-AA differs from that of propylene-based: crude bio-AA contains much more propionic acid (PA). Classical purification techniques do not allow the separation of these two chemicals whose structures are similar. [1] showed that falling film melt crystallization halves propionic acid contents in purified AA with yields reaching 60% and purification time less than five hours. Increasing the exchange surface between the cold surface and the melt to purify can improve heat transfer, decrease purification time and intensify melt crystallization process. Thus, micro/milli-structured crystallization surfaces have been designed and tested. Results show that these innovative surfaces can increase productivity by 84%. Heat transfer has been modeled during the crystallization process, and it clearly appears that thermal gradient is divided by ten with milli-structured surface compared to smooth surface. ã