摘要:
It is described a converter (10) for exhaust gases of internal combustion engines, comprising a housing (13) which is provided with at least one inlet opening (14) for the exhaust gases to be converted and with at least one outlet opening (15) for the converted gases and includes a converting system (11), in which the converting system comprises a plurality of panels (12) of fibers (30) comprising a metallic center (31) covered with a layer of oxides (32) carrying catalytically active metals (33), said panels being arranged with an edge facing the inlet opening and with another edge facing the outlet opening, essentially parallel to each other, and kept spaced apart by means of metallic spacers (41, 41'; 51, 51'; 62; 70).
摘要:
A process for the purification of organometallic compounds or heteroatomic organic compounds from oxygen, water and from the compounds deriving from the reaction of water and oxygen with the organometallic or heteroatomic compounds whose purification is sought, comprising the operation of contacting the organometallic or heteroatomic compound to the purified in the liquid state or in form of vapor, pure or in a carrier gas, with a hydrogenated getter alloy, and optionally also with one or more gas sorber materials selected among palladium on porous supports and a mixture of iron and manganese supported on zeolites.
摘要:
A process for removing oxygen from ammonia at room temperature includes contacting the flow of ammonia to be purified with a getter material made up of a mixture of metallic iron and manganese with a weight ratio varying between about 7:1 and 1:1 and having a specific surface greater than about 100 m /g. The flow of ammonia to be purified is preferably contacted with, in addition to the getter material, a drying material so as to remove the humidity thereof.
摘要:
A process for removing oxygen from ammonia at room temperature includes contacting the flow of ammonia to be purified with a getter material made up of a mixture of metallic iron and manganese with a weight ratio varying between about 7:1 and 1:1 and having a specific surface greater than about 100 m2/g. The flow of ammonia to be purified is preferably contacted with, in addition to the getter material, a drying material so as to remove the humidity thereof.
摘要:
It is described a converter (10) for exhaust gases of internal combustion engines, comprising a housing (13) which is provided with at least one inlet opening (14) for the exhaust gases to be converted and with at least one outlet opening (15) for the converted gases and includes a converting system (11), in which the converting system comprises a plurality of panels (12) of fibers (30) comprising a metallic center (31) covered with a layer of oxides (32) carrying catalytically active metals (33), said panels being arranged with an edge facing the inlet opening and with another edge facing the outlet opening, essentially parallel to each other, and kept spaced apart by means of metallic spacers (41, 41'; 51, 51'; 62; 70).
摘要:
A process is described for the purification of organometallic compounds or heteroatomic organic compounds from oxygen, water and from the compounds deriving from the reaction of water and oxygen with the organometallic or heteroatomic compounds whose purification is sought, comprising the operation of contacting the organometallic or heteroatomic compound to be purified, in the liquid state or in form of vapor, pure or in a carrier gas, with a catalyst based on iron and manganese supported on zeolites, and optionally also with one or more gas sorber materials selected among hydrogenated getter alloys and palladium deposited on a porous support.
摘要:
A ballistic protection structure has a first ballistic layer made of a textile of synthetic fibers and a second ballistic layer comprising a first holding element on which slender metallic structures in the form of flat sheets and/or straight filiform elements are restrained. The metallic structures are restrained at different points of the first holding element and protrude therefrom generally perpendicularly. The free ends of the slender metallic structures are restrained to the first textile layer.