Abrégé

The present invention relates to a process and system for the preparation of blocks of sulphur of a shape and size suitable for storage, handling and transport. The process according to the invention is performed by means of controlled pouring and assisted solidification of liquid sulphur in formworks supported by pallets for the handling and transport of the blocks thus obtained.

Classes IPC  ?

• C01B 17/02 - Préparation du soufrePurification

Abrégé

The present invention relates to a process for the preparation of articles of manufacture made of or based on sulphur, which comprises cooling of liquid sulphur in a volume of containment until the sulphur mass solidifies and forming of the product, characterised in that elastic pressure waves are applied to the cooling mass of liquid sulphur to produce a crystalline suspension of solid sulphur in liquid sulphur. The invention also claims sulphur-based articles obtainable by the process.

Classes IPC  ?

• C01B 17/02 - Préparation du soufrePurification
• B22D 27/08 - Secouage, vibration, ou retournement des moules
• C04B 28/36 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant du soufre, des sulfures ou de sélénium

Abrégé

A process and a corresponding system for the accumulation and use of thermal energy at medium or high temperatures, wherein a primary heat-carrier fluid is accumulated in a secondary accumulation section; it is subsequently fed to a heating section, where the primary fluid is heated and receives thermal energy; then, once heated, it is fed to a primary accumulation section, where the primary fluid is accumulated at the maximum temperature and from where it is collected for heat exchange with a secondary fluid, as part of a thermodynamic cycle for the production of electrical/mechanical energy; and wherein finally the primary fluid, after transferring heat to the secondary fluid and thereby cooling down, is fed and returns again to the secondary accumulation chamber, thus closing the cycle. Advantageously, the primary and secondary accumulation sections of the primary fluid, both epigeal and hypogeal, are of the tankless type, so that they do not involve the use of self- supporting tanks, or similar containers, and can be constructed in various ways, for example with a geological/artificial barrier, or in one or more natural cavities, such as those formed in a rock salt mine, or artificial cavities, provided or not with reinforcement and/or containment works. Moreover the primary heat-carrier fluid, used in this process to accumulate thermal energy, can be of the type including organic substances such as bitumen and/or the like.

Classes IPC  ?

• F28D 20/00 - Appareils ou ensembles fonctionnels d'accumulation de chaleur en généralAppareils échangeurs de chaleur de régénération non couverts par les groupes ou
• F01K 3/12 - Ensembles fonctionnels caractérisés par l'emploi d'accumulateurs de vapeur ou de chaleur ou bien de réchauffeurs intermédiaires de vapeur comportant plusieurs accumulateurs
• C09K 5/10 - Substances liquides