Designed by Buss, Built 1989, operated only 3 months due to business conditions
8 m x 10 x 9 m high, modular system Buss Loop Reactor System
The reaction mixture is fed into the reaction autoclave and then circulated through the reaction heat exchanger and then back into the autoclave through a unique reaction mixer which also introduces the reaction gas (H2, EO, NH3, etc). Mixing is intensive, constant, and with high sheer forces that produces high diffusion rates across the catalyst boundary layer.
The intensive mixing provides optimal reaction contact. Any undissolved, dispersed gas is disengaged in the autoclave and returns to the head space. As the reaction gas is consumed, fresh gas is introduced to maintain a constant reaction pressure. The temperature of the reaction mixture is controlled by the reaction heat exchanger.
Catalyst is added in a suspension of raw material or solvent. The centrifugal pump used to circulate the reaction mixture is specifically designed to handle suspended catalysts. It has a special seal system that is protected by a pressurized flushing system.
This system provides for: - Shorter reaction times resulting from higher specific mass transfer rates - Excellent selectivity giving high quality and maximum yields - Reduction in catalyst consumption at minimum catalyst loading - Simple design for easy in product changeover with quick cleaning - High uptime through limited moving parts
Buss Loop Reactor
Buss reaction mixer
Product Circulation pump
Catalyst Filtration and recovery system
Modicon PLC based control system
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• Reduction of derivatives of nitrobenzene and chlorinated nitro benezene• Alkylations• Acetylations and reduction of pharmacaeuticals, • Reduction of nitriles to primary amines• Oleochemical ethoxylations & alkoxylations• Selective reductions in fragrances
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