{"id":4541,"date":"2020-07-05T00:16:46","date_gmt":"2020-07-05T00:16:46","guid":{"rendered":"https:\/\/www.ufrgs.br\/lasid\/?page_id=4541"},"modified":"2020-07-16T03:21:16","modified_gmt":"2020-07-16T03:21:16","slug":"destaquesimulador","status":"publish","type":"page","link":"https:\/\/www.ufrgs.br\/lasid\/destaquesimulador\/","title":{"rendered":"In\u00edcio – Destaque Simulador"},"content":{"rendered":"\t\t
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Estudo avalia a combustibilidade de carv\u00f5es em simulador de PCI<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Publicado em:\u00a0<\/strong>5\/07\/2020<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\tA inje\u00e7\u00e3o de carv\u00e3o pulverizado atrav\u00e9s das ventaneiras dos altos-fornos j\u00e1 \u00e9 uma tecnologia consolidada que tem como principal objetivo a redu\u00e7\u00e3o do consumo de coque, reduzindo o custo de produ\u00e7\u00e3o bem como as emiss\u00f5es de CO2. Assim, na pr\u00e1tica industrial \u00e9 desej\u00e1vel operar sob elevadas taxas de inje\u00e7\u00f5es. Entretanto, o aumento progressivo da inje\u00e7\u00e3o de carv\u00e3o atrav\u00e9s das ventaneiras tende a provocar mudan\u00e7as delet\u00e9rias a opera\u00e7\u00e3o no alto-forno, provocados principalmente pelo excesso de carv\u00e3o n\u00e3o queimado gerados no processo. Assim, considerando a necessidade do desenvolvimento de uma ferramenta adequada para a avalia\u00e7\u00e3o da performance combust\u00edveis s\u00f3lidos para inje\u00e7\u00e3o em altos-fornos, o Laborat\u00f3rio de Siderurgia da UFRGS construiu um reator automatizado capaz de submeter combust\u00edveis s\u00f3lidos a condi\u00e7\u00f5es que se aproximam das condi\u00e7\u00f5es observadas na zona de combust\u00e3o do alto-forno. Procurando aprimorar o projeto do Simulador, o Me. Hector Picarte teve como tema da disserta\u00e7\u00e3o de mestrado a evolu\u00e7\u00e3o metodol\u00f3gica da opera\u00e7\u00e3o do reator a partir da avalia\u00e7\u00e3o do comportamento de diferentes carv\u00f5es sob diferentes condi\u00e7\u00f5es de opera\u00e7\u00e3o.\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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O que foi feito...<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Foram avaliados o comportamento de diferentes carv\u00f5es, do antracito aos alto vol\u00e1teis, em termos da efici\u00eancia de combust\u00e3o e da varia\u00e7\u00e3o da press\u00e3o no processo a partir de ensaios no Simulador de PCI (figura ao lado) sob diferentes concentra\u00e7\u00f5es de oxig\u00eanio e massas de carv\u00f5es injetadas. A metodologia utilizada no simulador permitiu a classifica\u00e7\u00e3o dos carv\u00f5es em rela\u00e7\u00e3o as suas efici\u00eancias de combust\u00e3o. Com base no registro da varia\u00e7\u00e3o da press\u00e3o foi estimado o tempo de resid\u00eancia das part\u00edculas de carv\u00e3o na zona termicamente afetada do reator bem como o impacto da press\u00e3o parcial de oxig\u00eanio sobre o comportamento do carv\u00e3o durante o processo.<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\"\"\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Quer saber mais? <\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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A \u00edntegra da disserta\u00e7\u00e3o do Me. Hector Picarte pode ser acessada aqui<\/strong>.<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

Estudo avalia a combustibilidade de carv\u00f5es em simulador de PCI Publicado em:\u00a05\/07\/2020 A inje\u00e7\u00e3o de carv\u00e3o pulverizado atrav\u00e9s das ventaneiras dos altos-fornos j\u00e1 \u00e9 uma tecnologia consolidada que tem como principal objetivo a redu\u00e7\u00e3o do consumo de coque, reduzindo o custo de produ\u00e7\u00e3o bem como as emiss\u00f5es de CO2. Assim, na pr\u00e1tica industrial \u00e9 desej\u00e1vel …<\/p>\n

In\u00edcio – Destaque Simulador<\/span> Leia mais »<\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-global-header-display":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":""},"_links":{"self":[{"href":"https:\/\/www.ufrgs.br\/lasid\/wp-json\/wp\/v2\/pages\/4541"}],"collection":[{"href":"https:\/\/www.ufrgs.br\/lasid\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.ufrgs.br\/lasid\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.ufrgs.br\/lasid\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ufrgs.br\/lasid\/wp-json\/wp\/v2\/comments?post=4541"}],"version-history":[{"count":12,"href":"https:\/\/www.ufrgs.br\/lasid\/wp-json\/wp\/v2\/pages\/4541\/revisions"}],"predecessor-version":[{"id":5352,"href":"https:\/\/www.ufrgs.br\/lasid\/wp-json\/wp\/v2\/pages\/4541\/revisions\/5352"}],"wp:attachment":[{"href":"https:\/\/www.ufrgs.br\/lasid\/wp-json\/wp\/v2\/media?parent=4541"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}