[et_pb_section fb_built=”1″ custom_padding_last_edited=”on|desktop” _builder_version=”4.27.0″ background_color=”#297FCA” use_background_color_gradient=”on” background_color_gradient_stops=”rgba(9,85,150,0.61) 0%|rgba(9,85,150,0.65) 100%” background_color_gradient_overlays_image=”on” background_image=”https:\/\/powerchem.se\/wp-content\/uploads\/2024\/08\/headway-jfR5wu2hMI0-unsplash-min-scaled.jpg” custom_padding=”150px||150px||true|false” custom_padding_tablet=”80px||80px||true|false” custom_padding_phone=”50px||50px||true|false” saved_tabs=”all” locked=”off” global_colors_info=”{}”][et_pb_row _builder_version=”4.16″ global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_post_title meta=”off” featured_image=”off” _builder_version=”4.27.0″ title_font=”||||||||” title_text_align=”left” title_text_color=”#ffffff” title_font_size=”50px” title_text_align_tablet=”center” title_text_align_phone=”center” title_text_align_last_edited=”on|tablet” title_font_size_tablet=”35px” title_font_size_phone=”30px” title_font_size_last_edited=”on|desktop” global_colors_info=”{}”][\/et_pb_post_title][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ custom_padding_last_edited=”on|tablet” _builder_version=”4.27.0″ _module_preset=”default” custom_padding=”30px||30px||true|false” custom_padding_tablet=”0px||0px||true|false” custom_padding_phone=”0px||0px||true|false” global_colors_info=”{}”][et_pb_row _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_heading title=”THE FUNCTIONING OF THE DIESEL PARTICULATE FILTER” _builder_version=”4.27.0″ _module_preset=”default” title_text_align=”center” custom_padding=”0px||0px||true|false” title_font_size_tablet=”21px” title_font_size_phone=”20px” title_font_size_last_edited=”on|tablet” global_colors_info=”{}”][\/et_pb_heading][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ custom_padding_last_edited=”on|tablet” _builder_version=”4.27.0″ _module_preset=”default” custom_padding=”0px||||false|false” custom_padding_tablet=”0px||0px||true|false” custom_padding_phone=”0px||0px||true|false” locked=”off” global_colors_info=”{}”][et_pb_row column_structure=”1_2,1_2″ custom_padding_last_edited=”on|tablet” _builder_version=”4.27.0″ _module_preset=”default” custom_padding_tablet=”0px||||false|false” custom_padding_phone=”0px||||false|false” custom_css_free_form=”selector {|| display: flex;|| align-items: center;|| flex-wrap: wrap;||}” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/powerchem.se\/wp-content\/uploads\/2024\/08\/pexels-tima-miroshnichenko-5640688-1-scaled.jpg” title_text=”pexels-tima-miroshnichenko-5640688 (1)” align=”center” align_tablet=”center” align_phone=”” align_last_edited=”on|desktop” _builder_version=”4.27.0″ global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.0″ text_font=”–et_global_body_font|500|||||||” text_text_color=”#000000″ header_font=”Nunito Sans|700|||||||” header_text_color=”#297FCA” header_line_height=”1.2em” global_colors_info=”{}”]<\/p>\n
Particulate matter is defined as anything that can accumulate on a special filter paper through which diesel exhaust passes during a defined test procedure. A particulate filter must regularly <\/span>regenerated<\/a>. In active regeneration, the temperature in the filter is increased to accelerate the oxidation of soot. [\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ custom_padding_last_edited=”on|desktop” _builder_version=”4.27.0″ _module_preset=”default” background_color=”#f8f8f8″ custom_padding_tablet=”30px||||false|false” custom_padding_phone=”30px||30px||true|false” locked=”off” global_colors_info=”{}”][et_pb_row column_structure=”1_2,1_2″ custom_padding_last_edited=”on|phone” _builder_version=”4.27.0″ _module_preset=”default” custom_margin=”50px||||false|false” custom_margin_tablet=”0px||||false|false” custom_margin_phone=”0px||||false|false” custom_margin_last_edited=”on|tablet” custom_padding=”0px||||false|false” custom_padding_tablet=”0px||||false|false” custom_padding_phone=”0px||||false|false” custom_css_free_form=”selector {|| display: flex;|| align-items: center;|| flex-wrap: wrap-reverse;||}” locked=”off” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.0″ text_font=”–et_global_body_font|500|||||||” text_text_color=”#000000″ header_font=”Nunito Sans|700|||||||” header_text_color=”#297FCA” header_line_height=”1.2em” custom_padding_tablet=”20px||||false|false” custom_padding_phone=”20px||||false|false” custom_padding_last_edited=”on|tablet” global_colors_info=”{}”]<\/p>\n Most modern diesel passenger cars have active control of the particulate filter with pressure drop measurement and temperature measurement (before and after the filter). Today, retrofit CCT (active particulate filter) systems are available that can be applied to older machines that were not originally equipped with filters. There are different types of particle filters, ceramic, sintered metal filters, and also so-called partial filters, which, however, have a low level of particle purification.<\/p>\n source <\/span>wikipedia<\/a><\/p>\n [\/et_pb_text][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/powerchem.se\/wp-content\/uploads\/2024\/08\/pexels-chevanon-1108101-1-scaled.jpg” title_text=”pexels-chevanon-1108101 (1)” align=”center” align_tablet=”center” align_phone=”” align_last_edited=”on|desktop” _builder_version=”4.27.0″ global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":" Particulate filter is a device on diesel engines to separate particles from the engine exhaust gases. With a particulate filter in the exhaust stream, up to 99.9% of particles can be removed. Particulate matter is defined as anything that can accumulate on a special filter paper through which diesel exhaust passes during a defined test […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":71338,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-71341","page","type-page","status-publish","hentry"],"yoast_head":"\n
\nDiesel particulate matter consists of <\/span>hydrocarbons<\/a> <\/span>from the fuel and <\/span>the lubricating oil<\/a>, <\/span>coal<\/a> <\/span>and <\/span>inorganic<\/a> <\/span>topics such as <\/span>sulphur<\/a> <\/span>and <\/span>ashes<\/a>.<\/p>\n
\nThis can be done passively where the filter is regenerated during normal operation or actively where the temperature in the filter is increased in different ways.
\nFor this to work better <\/span>oxidation temperatures<\/a> <\/span>of soot can be reduced by using additives in the fuel or by increasing the proportion <\/span>nitrogen dioxide<\/a> <\/span>in the exhaust gases.
\nNitrogen dioxide oxidizes <\/span>foolish<\/a> <\/span>at lower temperature than oxygen and can be formed by <\/span>oxidation<\/a> <\/span>of <\/span>nitric oxide<\/a> <\/span>over a <\/span>catalyst<\/a> <\/span>before the filter.
\nThe particulate filter can also be coated with catalytic material that contributes to the oxidation of nitrogen oxide. <\/p>\n
\nThis can be done by additional injection of fuel, either into the cylinder to increase the exhaust gas temperature or through an oxidation catalyst mounted before the filter in the exhaust gas stream.
\nThe oxidation of the fuel over the catalyst leads to an increase in temperature which accelerates soot combustion.
\nFor fuel to be oxidized in the catalyst, the catalyst temperature must exceed about 250\u00b0C, which can be a problem in some applications where the exhaust gas temperature is low for a long time.
\nOther ways to regenerate the filter are by using a burner before the filter or by electrical heating, either of the filter or the exhaust gas. <\/p>\n
\nAdvanced control algorithms determine when regeneration is required and monitor the condition of the filter.
\nOften a combination of passive and active regeneration is used. <\/p>\n
\nThese systems normally operate with a separate fuel injector in the exhaust pipe.
\nEarlier retrofittable particulate filters were often completely passive, resulting in frequent regeneration problems.
\nSome systems operate with a separate regeneration system with electrical heating of the filter but these usually require the filter to be dismantled or the machine to be shut down for an extended period of time. <\/p>\n
<\/strong><\/div>\n
\nNo, they can be cleaned quickly and easily with GAT particle filter products. <\/strong><\/div>\n