{"id":3014,"date":"2024-03-19T10:51:21","date_gmt":"2024-03-19T02:51:21","guid":{"rendered":"https:\/\/www.lneya.com\/news\/cooling-heating-distillation.html"},"modified":"2024-03-19T11:02:42","modified_gmt":"2024-03-19T03:02:42","slug":"cooling-heating-distillation","status":"publish","type":"post","link":"https:\/\/tw.lneya.com\/pt\/news\/cooling-heating-distillation.html","title":{"rendered":"A exist\u00eancia de destila\u00e7\u00e3o e controlo da temperatura durante a destila\u00e7\u00e3o - controlo din\u00e2mico da temperatura Sundi"},"content":{"rendered":"<p>\t\t\t\t\t\t<span style=\"font-family:Arial;font-size:16px;\">A destila\u00e7\u00e3o existe em ind\u00fastrias como a biofarmac\u00eautica e a petroqu\u00edmica. A destila\u00e7\u00e3o laboratorial inclui a destila\u00e7\u00e3o sob v\u00e1cuo, a destila\u00e7\u00e3o de percurso curto, a destila\u00e7\u00e3o em pel\u00edcula fina, a destila\u00e7\u00e3o a vapor, a destila\u00e7\u00e3o em batelada, a destila\u00e7\u00e3o azeotr\u00f3pica, a destila\u00e7\u00e3o industrial (destila\u00e7\u00e3o multi-efeito), etc.<\/span><\/p>\n<p><span style=\"font-family:Arial;font-size:16px;\">Assim, o controlo da temperatura deve ser efectuado na fase de tratamento da destila\u00e7\u00e3o. No entanto, o controlo da temperatura \u00e9 apenas uma das muitas vari\u00e1veis do processo de press\u00e3o, caudal e composi\u00e7\u00e3o na destila\u00e7\u00e3o, e \u00e9 tamb\u00e9m uma vari\u00e1vel cr\u00edtica. Manter a baixa temperatura do condensador no equipamento de destila\u00e7\u00e3o para extrair os componentes necess\u00e1rios.<\/span><\/p>\n<p><span style=\"font-family:Arial;font-size:16px;\">Por exemplo, na extra\u00e7\u00e3o de hidrocarbonetos, a medi\u00e7\u00e3o da temperatura \u00e9 um par\u00e2metro de controlo comum no processo de arrefecimento e aquecimento da destila\u00e7\u00e3o. Dependendo da aplica\u00e7\u00e3o e do fluido do processo, o controlo da temperatura pode ser utilizado para arrefecer o destilado para condensar produtos altamente vol\u00e1teis na fase l\u00edquida, ou para aquecer o fluido do processo para evaporar componentes altamente vol\u00e1teis para facilitar a separa\u00e7\u00e3o.<\/span><\/p>\n<p><span style=\"font-family:Arial;font-size:16px;\">A instala\u00e7\u00e3o da unidade come\u00e7a por ligar o circulador\/refrigerador de aquecimento \u00e0 entrada e \u00e0 sa\u00edda no trajeto curto. Ap\u00f3s a liga\u00e7\u00e3o, regular a temperatura para 50 \u00b0C. Quando a temperatura atingir os 50 graus Celsius, aumentar a temperatura da manta para 140 \u00b0C. Nesta altura, podem surgir algumas reac\u00e7\u00f5es na sua cabe\u00e7a e \u00e9 prov\u00e1vel que a sua armadilha de frio esteja a pingar. \u00c0 medida que a manta aquece, a transfer\u00eancia de calor da manta para o bal\u00e3o de ebuli\u00e7\u00e3o ser\u00e1 mais proeminente e poder\u00e1 ver a temperatura do term\u00f3metro de cabe\u00e7a mudar rapidamente. Deixar a manta aquecer at\u00e9 cerca de 10 \u00b0C abaixo da temperatura definida. O aumento gradual da temperatura evitar\u00e1 que a manta ultrapasse a temperatura definida. Depois de a temperatura da manta atingir os 130 \u00b0C, regular a temperatura para 220 \u00b0C. (Alguns materiais podem necessitar de uma temperatura ligeiramente superior para completar a destila\u00e7\u00e3o. Devem ser evitadas temperaturas superiores a 250 \u00b0C).<\/span><\/p>\n<p><span style=\"font-family:Arial;font-size:16px;\">O arrefecimento do destilado \u00e9 normalmente efectuado por v\u00e1rios m\u00e9todos: arrefecimento por ventilador, refrigera\u00e7\u00e3o ou torre de arrefecimento. Para al\u00e9m do processo de arrefecimento do destilado, o processo de aquecimento tamb\u00e9m est\u00e1 envolvido no processamento do destilado. Nos processos qu\u00edmicos, a destila\u00e7\u00e3o fraccionada ou as colunas de destila\u00e7\u00e3o s\u00e3o utilizadas para separar a mistura nas suas partes constituintes ou frac\u00e7\u00f5es. A classifica\u00e7\u00e3o baseia-se na diferen\u00e7a de volatilidade (ou seja, no ponto de ebuli\u00e7\u00e3o).<\/span><\/p>\n<p><span style=\"font-family:Arial;font-size:16px;\">Se tiver v\u00e1rios processos que exijam aquecimento e arrefecimento, pode ser uma melhor op\u00e7\u00e3o comprar um chiller com uma gama de temperaturas mais ampla que possa aquecer e arrefecer.<br \/><\/span><br \/><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/tw.lneya.com\/wp-content\/uploads\/2023\/05\/banner2-1.jpg\" alt=\"\" width=\"880\" height=\"229\" title=\"\" align=\"\"><\/p>\n<p><span style=\"font-family:Arial;font-size:16px;\">O sistema de controlo din\u00e2mico de temperatura SUNDI \u00e9 utilizado para testes de tens\u00e3o de componentes mec\u00e2nicos ou electr\u00f3nicos ou testes relacionados com a temperatura de cosm\u00e9ticos e materiais, bem como para a simula\u00e7\u00e3o de condi\u00e7\u00f5es ambientais e processos de envelhecimento. A gama de temperaturas \u00e9 de -120 \u2103 a 350 \u2103, com v\u00e1rios reactores, reactores, sistemas de vapor para controlo da temperatura.<\/span><\/p>\n<p><span style=\"font-family:Arial;font-size:16px;\">Outro ponto importante \u00e9 a escolha de um meio condutor t\u00e9rmico adequado para garantir o funcionamento est\u00e1vel do sistema. \u00c9 muito importante escolher o meio correto de acordo com a temperatura de funcionamento do sistema. O sistema de controlo din\u00e2mico da temperatura SUNDI adopta um design de tubo totalmente fechado e adopta um permutador de calor de placas de alta efici\u00eancia, que reduz a necessidade de fluido de transfer\u00eancia de calor, melhora a taxa de utiliza\u00e7\u00e3o de calor do sistema e atinge rapidamente uma temperatura elevada. O meio condutor de calor no sistema fechado, com um contentor, expande a circula\u00e7\u00e3o do meio condutor de calor e n\u00e3o participa no contentor. Quer a temperatura seja alta ou baixa, a temperatura do tanque de expans\u00e3o \u00e9 elevada \u00e0 temperatura ambiente para 60 graus, o que pode reduzir a absor\u00e7\u00e3o e a humidade do meio condutor de calor durante o funcionamento. Riscos. Porque o controlo da temperatura envolve a qualidade do produto, a otimiza\u00e7\u00e3o e a estabilidade do processo, o que melhora a seguran\u00e7a das instala\u00e7\u00f5es e reduz os custos energ\u00e9ticos do processo.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tw.lneya.com\/wp-content\/uploads\/2023\/05\/sundi-2-1.jpg\" alt=\"\"><\/span><\/p>\n<p><span style=\"font-family:Arial;font-size:16px;\">Se tiver necessidade de arrefecimento e aquecimento de processos bioqu\u00edmicos, pode dirigir-se a LNEYA para uma consulta mais aprofundada, contactar (86) 13912479193 ou enviar um e-mail para sales@lneya.com<\/p>\n<p><\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>Distillation exists in industries such as biopharmaceutical and petrochemical industries. Laboratory distillation includes vacuum distillation, short-path distillation, thin-film distillation, steam distillation, batch distillation, azeotropic distillation, industrial distillation (multi-effect distillation), etc. Then, temperature control must be performed in the distillation treatment step. However, temperature control is only one of many process variables in pressure, flow rate 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