Processos de tratar uma corrente gasosa contendo água de efetuar a fluoração de um composto de fabricar 1,1,1,2-tetrafluor-etano de reduzir o teor de água de uma corrente do produto gasoso quente e de separar água de um gás de descarga planta para conduzir um processo de fluoração recipiente de contenção e planta de destiliação

• Main Authors: JAMES MALCOLM FORSYTH, ANN SAN LIOW, RALPH JONES DOY, CHARLES BRIAN BLAKE, NEIL DAVID SHILLING, ROWLAND JOHN PORTER BRIERLEY, BRIAN SCOFIELD, JANE ANDREA EILEEN ROBERTS, STEPHEN JOHN ADAMS
• Format: Patent
• Language: Portuguese
• Published: 28.11.1995
• Edition: 6
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; APPARATUS THEREFOR; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; GENERAL METHODS OF ORGANIC CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR RELEVANT APPARATUS; TRANSPORTING

Water present in a hot gaseous product stream from a reactor system A.B (FIG. 1) containing hydrogen fluoride is separated from the stream in order to eliminate a potentially corrosive combination of water and HF. The water is removed by contacting the gaseous product stream with liquid HF in a distillation column so as to obtain a bottoms product containing liquid HF and water and a top product containing dry HF and the product to be recovered. The invention encompasses the separation process, a vessel for carrying out the process (FIGS. 2 to 4), a control system for the liquid HF supply to the distillation column (FIGS. 5 and 6) and a recovery system for recovering HF employed during operation of the reactor system in different regimes employing HF as a fluorination agent, as a diluent during catalyst regeneration and/or catalyst prefluorination (FIG. 7).