{"id":94459,"date":"2021-06-26T08:52:06","date_gmt":"2021-06-26T00:52:06","guid":{"rendered":"https:\/\/www.alpapowder.com\/estudo-de-caso\/dessulfurizacao-de-gases-de-combustao\/"},"modified":"2022-05-12T16:20:53","modified_gmt":"2022-05-12T08:20:53","slug":"dessulfurizacao-de-gases-de-combustao","status":"publish","type":"page","link":"https:\/\/www.alpapowder.com\/pt-pt\/estudo-de-caso\/dessulfurizacao-de-gases-de-combustao\/","title":{"rendered":"Dessulfuriza\u00e7\u00e3o de gases de combust\u00e3o"},"content":{"rendered":"<section class=\"wpb-content-wrapper\"><p>[vc_row unlock_row_content=&#8221;yes&#8221; row_height_percent=&#8221;80&#8243; override_padding=&#8221;yes&#8221; h_padding=&#8221;0&#8243; top_padding=&#8221;0&#8243; bottom_padding=&#8221;0&#8243; overlay_alpha=&#8221;50&#8243; equal_height=&#8221;yes&#8221; gutter_size=&#8221;0&#8243; column_width_percent=&#8221;100&#8243; shift_y=&#8221;0&#8243; z_index=&#8221;0&#8243;][vc_column column_width_percent=&#8221;100&#8243; position_vertical=&#8221;middle&#8221; gutter_size=&#8221;3&#8243; override_padding=&#8221;yes&#8221; column_padding=&#8221;4&#8243; style=&#8221;dark&#8221; back_color=&#8221;accent&#8221; overlay_alpha=&#8221;80&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; width=&#8221;1\/2&#8243;][vc_custom_heading heading_semantic=&#8221;h1&#8243; text_size=&#8221;h1&#8243;]Princ\u00edpios b\u00e1sicos de bicarbonato de s\u00f3dio para dessulfuriza\u00e7\u00e3o de gases de combust\u00e3o[\/vc_custom_heading][vc_column_text]O bicarbonato de s\u00f3dio (bicarbonato de s\u00f3dio, NaHCO3) pode ser usado como adsorvente para dessulfuriza\u00e7\u00e3o de gases de combust\u00e3o Ela remove os poluentes \u00e1cidos dos gases de combust\u00e3o por quimiotecnia, e tamb\u00e9m remove algumas subst\u00e2ncias inorg\u00e2nicas e org\u00e2nicas vestigiais por adsor\u00e7\u00e3o f\u00edsica. O bicarbonato de s\u00f3dio em p\u00f3 \u00e9 pulverizado diretamente no g\u00e1s de combust\u00e3o de alta temperatura, onde se decomp\u00f5e para produzir carbonato de s\u00f3dio Na<sub>2<\/sub>CO<sub>3<\/sub>, H<sub>2<\/sub>O e CO<sub>2<\/sub>.<\/p>\n<p>NaHCO<sub>3<\/sub>\u00a0+ HCl \u2192 NaCl + H<sub>2<\/sub>O + CO<sub>2<\/sub><br \/>\n2NaHCO<sub>3<\/sub>\u00a0+ SO<sub>2<\/sub>\u00a0+ \u00bd O<sub>2<\/sub>\u00a0\u2192 Na<sub>2<\/sub>SO<sub>4<\/sub>\u00a0+ H<sub>2<\/sub>O + 2CO<sub>2<\/sub><br \/>\nNaHCO<sub>3<\/sub>\u00a0+ HF \u2192 NaF + H<sub>2<\/sub>O + CO<sub>2<\/sub><\/p>\n<p>Normalmente, a temperatura dos gases de combust\u00e3o est\u00e1 entre 140 e 250 \u00b0C. Devido \u00e0 alta atividade do adsorvente de bicarbonato de s\u00f3dio, um ligeiro excesso de bicarbonato de s\u00f3dio (fator estequiom\u00e9trico entre 1,1 e 1,3) \u00e9 geralmente suficiente .<\/p>\n<p>Por raz\u00f5es de transporte e armazenamento, a mat\u00e9ria-prima do bicarbonato de s\u00f3dio \u00e9 normalmente granulada grosseiramente (valor D50 de cerca de 200 \u00b5m). Para atingir alta reatividade, o adsorvente deve ter uma grande \u00e1rea de superf\u00edcie espec\u00edfica, portanto o bicarbonato de s\u00f3dio deve ser mo\u00eddo at\u00e9 uma certa finura antes de ser injetado no tubo de g\u00e1s de combust\u00e3o. Por exemplo, para remover SO<sub>2<\/sub>, o bicarbonato de s\u00f3dio deve ser mo\u00eddo a uma finura de D90 &lt; 20 \u03bcm; para a remo\u00e7\u00e3o de HCl, somente D90 &lt; 35 \u03bcm \u00e9 necess\u00e1rio. Se o sistema for operado corretamente, mais de 95% do SO<sub>2<\/sub> pode ser removido; o HCl pode at\u00e9 ser removido em at\u00e9 99%.[\/vc_column_text][\/vc_column][vc_column column_width_percent=&#8221;100&#8243; position_vertical=&#8221;middle&#8221; align_horizontal=&#8221;align_center&#8221; gutter_size=&#8221;3&#8243; override_padding=&#8221;yes&#8221; column_padding=&#8221;0&#8243; back_color=&#8221;color-jevc&#8221; back_image=&#8221;116257&#8243; overlay_color=&#8221;color-jevc&#8221; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; align_medium=&#8221;align_center_tablet&#8221; medium_width=&#8221;0&#8243; align_mobile=&#8221;align_center_mobile&#8221; mobile_width=&#8221;0&#8243; width=&#8221;1\/2&#8243; uncode_shortcode_id=&#8221;871009&#8243; back_color_type=&#8221;uncode-palette&#8221; overlay_color_type=&#8221;uncode-palette&#8221;][vc_empty_space empty_h=&#8221;5&#8243;][vc_empty_space empty_h=&#8221;3&#8243;][\/vc_column][\/vc_row][vc_row row_height_percent=&#8221;0&#8243; 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product_items=&#8221;title,price,media|featured|onpost|original&#8221; portfolio_items=&#8221;title,media|featured|onpost|original&#8221; project_items=&#8221;title,media|media|onpost|original,text|excerpt,icon|sm,acf-field_607e48db91dd6,spacer|half&#8221; screen_lg=&#8221;1000&#8243; screen_md=&#8221;600&#8243; screen_sm=&#8221;300&#8243; single_width=&#8221;6&#8243; images_size=&#8221;sixteen-nine&#8221; single_overlay_color=&#8221;color-jevc&#8221; single_overlay_opacity=&#8221;50&#8243; single_text_anim_type=&#8221;btt&#8221; single_padding=&#8221;1&#8243; single_title_dimension=&#8221;h5&#8243; single_border=&#8221;yes&#8221; custom_order=&#8221;yes&#8221; order_ids=&#8221;19264,19265,18999,18996,18998,18995,18997,18967&#8243; single_icon=&#8221;fa fa-plus2&#8243;][\/vc_column][\/vc_row][vc_row unlock_row_content=&#8221;yes&#8221; row_height_percent=&#8221;0&#8243; override_padding=&#8221;yes&#8221; h_padding=&#8221;0&#8243; top_padding=&#8221;0&#8243; bottom_padding=&#8221;0&#8243; back_color=&#8221;color-lxmt&#8221; overlay_alpha=&#8221;50&#8243; equal_height=&#8221;yes&#8221; gutter_size=&#8221;0&#8243; column_width_percent=&#8221;100&#8243; shift_y=&#8221;0&#8243; z_index=&#8221;0&#8243; inverted_device_order=&#8221;yes&#8221;][vc_column column_width_percent=&#8221;100&#8243; align_horizontal=&#8221;align_center&#8221; gutter_size=&#8221;3&#8243; override_padding=&#8221;yes&#8221; column_padding=&#8221;0&#8243; style=&#8221;dark&#8221; overlay_alpha=&#8221;6&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; css_animation=&#8221;bottom-t-top&#8221; sticky=&#8221;yes&#8221; width=&#8221;1\/2&#8243;][uncode_index el_id=&#8221;index-131707&#8243; loop=&#8221;size:10|order_by:date|post_type:portfolio|by_id:93544|taxonomy_count:10&#8243; gutter_size=&#8221;3&#8243; portfolio_items=&#8221;title,media|featured|onpost|original,acf-field_608bc5c592a93,spacer|half,link|default-shape|small_size|Saber mais&#8221; screen_lg=&#8221;1000&#8243; screen_md=&#8221;600&#8243; screen_sm=&#8221;480&#8243; single_text=&#8221;overlay&#8221; single_width=&#8221;12&#8243; single_style=&#8221;dark&#8221; single_overlay_opacity=&#8221;50&#8243; single_overlay_anim=&#8221;no&#8221; single_h_align=&#8221;right&#8221; single_padding=&#8221;2&#8243; single_title_dimension=&#8221;h4&#8243; single_border=&#8221;yes&#8221;][\/vc_column][vc_column column_width_percent=&#8221;100&#8243; position_vertical=&#8221;middle&#8221; gutter_size=&#8221;2&#8243; override_padding=&#8221;yes&#8221; column_padding=&#8221;4&#8243; style=&#8221;dark&#8221; back_color=&#8221;accent&#8221; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; css_animation=&#8221;bottom-t-top&#8221; animation_delay=&#8221;200&#8243; width=&#8221;1\/2&#8243;][uncode_block id=&#8221;85796&#8243; inside_column=&#8221;yes&#8221;][vc_empty_space empty_h=&#8221;2&#8243;][vc_column_text]<strong>Baixa taxa de falhas, opera\u00e7\u00e3o est\u00e1vel<br \/>\n<\/strong>Adequado para opera\u00e7\u00e3o cont\u00ednua, o tempo de opera\u00e7\u00e3o anual excede 8000 horas.[\/vc_column_text][vc_separator sep_color=&#8221;color-146634&#8243;][vc_column_text]<strong>Ajuste autom\u00e1tico da quantidade de dessulfurizante pulverizado de inje\u00e7\u00e3o<br \/>\n<\/strong>A flutua\u00e7\u00e3o da concentra\u00e7\u00e3o de subst\u00e2ncias nocivas no g\u00e1s de combust\u00e3o \u00e9 monitorada em tempo real e ajuste autom\u00e1tico da quantidade de dessulfurizante pulverizado de inje\u00e7\u00e3o.[\/vc_column_text][vc_separator sep_color=&#8221;color-146634&#8243;][vc_column_text]<strong>Capacidade de entrada de grande volume de ar<br \/>\n<\/strong>A temperatura de esmagamento pode ser reduzida. Uma unidade de ar frio est\u00e1 dispon\u00edvel como op\u00e7\u00e3o para requisitos mais rigorosos de temperatura.[\/vc_column_text][vc_separator sep_color=&#8221;color-146634&#8243;][vc_column_text]<strong>Limpo e a prote\u00e7\u00e3o ambiental<br \/>\n<\/strong>Todo o sistema \u00e9 fechado para o esmagamento, menos poeira, baixo ru\u00eddo, o processo de produ\u00e7\u00e3o \u00e9 limpo e a prote\u00e7\u00e3o ambiental.[\/vc_column_text][vc_separator sep_color=&#8221;color-146634&#8243;][vc_column_text]<strong>N\u00e3o irritante e n\u00e3o t\u00f3xico<br \/>\n<\/strong>O agente auxiliar (bicarbonato de s\u00f3dio) e os res\u00edduos s\u00e3o n\u00e3o-irritantes e n\u00e3o t\u00f3xicos.<\/p>\n<p>[\/vc_column_text][vc_separator sep_color=&#8221;color-146634&#8243;][vc_column_text]<strong>F\u00e1cil de desmontar e limpar<br \/>\n<\/strong>Estrutura compacta, o moinho e o ventilador s\u00e3o f\u00e1ceis de desmontar e limpar. A limpeza on-line opcional est\u00e1 dispon\u00edvel para evitar a ader\u00eancia e o bloqueio do material e reduzir o tempo de inatividade.[\/vc_column_text][vc_separator sep_color=&#8221;color-146634&#8243;][vc_column_text]<strong>Sistema de controle inteligente<br \/>\n<\/strong>Uma opera\u00e7\u00e3o chave, monitoramento on-line da concentra\u00e7\u00e3o de di\u00f3xido de enxofre, volume de ar do sistema, volume de alimenta\u00e7\u00e3o, temperatura de moagem e outros par\u00e2metros chave.[\/vc_column_text][vc_separator sep_color=&#8221;color-146634&#8243;][vc_column_text]<strong>Tritura\u00e7\u00e3o e classifica\u00e7\u00e3o integradas<br \/>\n<\/strong>O dimensionamento ideal do produto pode ser obtido atrav\u00e9s do ajuste da velocidade da roda classificadora.<\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>[vc_row unlock_row_content=&#8221;yes&#8221; row_height_percent=&#8221;80&#8243; override_padding=&#8221;yes&#8221; h_padding=&#8221;0&#8243; top_padding=&#8221;0&#8243; bottom_padding=&#8221;0&#8243; overlay_alpha=&#8221;50&#8243; equal_height=&#8221;yes&#8221; gutter_size=&#8221;0&#8243; column_width_percent=&#8221;100&#8243; shift_y=&#8221;0&#8243; z_index=&#8221;0&#8243;][vc_column column_width_percent=&#8221;100&#8243; position_vertical=&#8221;middle&#8221; gutter_size=&#8221;3&#8243; override_padding=&#8221;yes&#8221; column_padding=&#8221;4&#8243; style=&#8221;dark&#8221; back_color=&#8221;accent&#8221; [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"parent":94314,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-94459","page","type-page","status-publish","hentry","page_category-por-industria"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.alpapowder.com\/pt-pt\/wp-json\/wp\/v2\/pages\/94459","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.alpapowder.com\/pt-pt\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.alpapowder.com\/pt-pt\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/pt-pt\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/pt-pt\/wp-json\/wp\/v2\/comments?post=94459"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/pt-pt\/wp-json\/wp\/v2\/pages\/94459\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/pt-pt\/wp-json\/wp\/v2\/pages\/94314"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/pt-pt\/wp-json\/wp\/v2\/media?parent=94459"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}