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Study of the slow batch pyrolysis of mixtures of plastics, tyres and forestry b...
Paradela, Filipe; Pinto, Filomena; Ramos, Ana M.; Gulyurtlu, Ibrahim; Cabrita, IsabelIn this work was studied the effect of experimental conditions in the production of liquid compounds from slow batch pyrolysis of mixtures of plastics, tires and pines wastes. The major compounds formed were toluene, ethylbenzene, and linear alkanes from C5 to C10 (each reaching yields around 5% w/w of the initial waste mixture). The pyrolysis reaction time and temperature improved the production of those speci...
Recovery of wastes by pyrolysis: effect of experimental conditions
Paradela, Filipe; Pinto, Filomena; Ramos, Ana M.; Gulyurtlu, Ibrahim; Cabrita, IsabelThis work aimed to study the recovery of three types of waste by the process of pyrolysis: biomass, plastics and used tyres. The effects of experimental conditions in products yield and composition were studied. The increase of reaction time increased alkane content both in gas phase from 53% to 70% v/v and in liquid fraction from 48% to 60% w/w. The rise of reaction temperature led to a decrease of liquid yiel...
Efeito do tamoxifeno no perfil das proteínas plasmáticas em condição de diabete...
P. Silva,Teresa Cristina; Mota,Saul B.; Almeida,Maria Margareth C.; Ferreira,Elaine Cristina S.; Ururahy,Marcela A. G.; Bezerra,João FelipeOBJETIVO: Considerando-se que importantes avanços científicos têm sido obtidos através de estudos com Diabetes mellitus experimental, e que a ação do tamoxifeno em humanos permanece obscura, o presente trabalho objetiva acompanhar as modificações promovidas pelo diabetes e tamoxifeno no perfil eletroforético das proteínas plasmáticas. MÉTODOS: Foram utilizados 27 ratos fêmeas Wistar (180-220g peso corporal), di...
An overview of portuguese chemical engineering undergraduate laboratories
Mendes, Adélio; Henriques, Carlos; Portugal, Inês; Alves, M. M.; Castro, Almiro; Ramos, Ana M.The UNESCO’s World Declaration on Higher Education for the Twenty-First Century, Vision and Action (1998) states in its paragraph “Innovative educational approaches: critical thinking and creativity”: “[…] New pedagogical and didactical approaches should be accessible and promoted in order to facilitate the acquisition of skills, competencies and abilities for communication, creative and critical analysis, inde...
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