摘要:
The invention provides an improved ceramic packing element (1, 6, 8) suited to use as a bed limiter having a generally uniform cross-section in the length (l) direction with the basic shape of a bow-tie and having a plurality of through passages (5) parallel to the length dimension (L).
摘要:
The invention provides an improved ceramic packing element (1, 6, 8) suited to use as a bed limiter having a generally uniform cross-section in the length (l) direction with the basic shape of a bow-tie and having a plurality of through passages (5) parallel to the length dimension (L).
摘要:
An improved catalyst carrier is formed by a process that comprises the use of ceramic particle components with particle sizes chosen to ensure that a desired degree of porosity is obtained without recourse to the use of organic burnout materials.
摘要:
Ceramic bodies comprised mainly of zircon and wollastonite, with zircon being the dominant crystalline phase, show improved resistance to alkaline conditions at elevated temperatures than conventional bodies and excellent thermal stability.
摘要:
A catalyst for the selective reduction of nitrogen oxides to nitrogen in the presence of ammonia in the form of composite bodies formed from a mixture of anatase (5 to 40% by weight), a zeolite (50 to 90%), a bond material (0 to 30%, and, optionally, promoter selected from oxides of vanadium, molybdenum, and copper, in the amount of at least 0.1% by weight.