{"id":757,"date":"2011-04-06T10:33:00","date_gmt":"2011-04-06T09:33:00","guid":{"rendered":"https:\/\/www.biobasedpress.eu\/wordpress\/?p=757"},"modified":"2018-01-15T15:54:03","modified_gmt":"2018-01-15T14:54:03","slug":"eerste-en-tweede-generatie","status":"publish","type":"post","link":"https:\/\/www.biobasedpress.eu\/nl\/2011\/04\/eerste-en-tweede-generatie\/","title":{"rendered":"Eerste en tweede generatie"},"content":{"rendered":"<p><strong>In het debat over biobrandstoffen neemt het onderscheid tussen eerste generatie en tweede generatie technologie\u00ebn een belangrijke plaats in. Bij eerste generatie technologie\u00ebn wordt brandstof geproduceerd uit voedingsstoffen zoals zetmeel (uit ma\u00efs), suiker (uit suikerriet) of koolzaadolie. Bij tweede generatie technologie\u00ebn wordt de brandstof gewonnen door omzettingen uitgaande van vezels uit hout of gras, of uit speciaal te kweken \u2018tweede generatie gewassen\u2019 als Miscanthus. Voor de acceptatie van biobrandstof maakt de oorsprong van de brandstof veel uit.<\/strong><\/p>\n<p>Bij het maken van chemicali\u00ebn en materialen uit groene grondstoffen speelt het onderscheid tussen eerste en tweede generatie technologie\u00ebn minder. In vergelijking met energie zijn voor materialen en chemicali\u00ebn veel kleinere volumes grondstoffen nodig. Bovendien is voor energiegebruik en broeikasgasemissies niet zozeer de gebruikte technologie van belang, maar de vraag of we de hele plant gebruiken. Bij de productie van biomaterialen uit tarwe bijvoorbeeld: als all\u00e9\u00e9n de korrel nuttig wordt gebruikt, is de emissie van broeikasgassen veel hoger dan wanneer alle onderdelen van de plant meedoen, bijvoorbeeld stro voor de productie van procesenergie.<\/p>\n<p><strong>Productiviteit<br \/>\n<\/strong>Uit een recente studie van Wageningen UR en Copernicus Instituut van de Universiteit Utrecht blijkt dan dat in West-Europa productie van biomaterialen uit de hele suikerbiet (eerste generatie) tot minder uitstoot leidt van broeikasgassen, dan productie uit Miscanthus (tweede generatie), eenvoudig doordat de productie van suikerbiet per hectare zo veel groter is dan die van Miscanthus. Ook al is momenteel de overheersende mening dat tweede generatie technologie\u00ebn noodzakelijk zijn voor de doorbraak van groene grondstoffen \u2013 in de praktijk kunnen eerste generatie technologie\u00ebn misschien nog lang in gebruik zijn, simpelweg vanwege hun efficiency.<\/p>\n<p><em>Met dank aan de WTC, Wetenschappelijke en Technologische Commissie voor de biobased economy<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In het debat over biobrandstoffen neemt het onderscheid tussen eerste generatie en tweede generatie technologie\u00ebn een belangrijke plaats in. Bij eerste generatie technologie\u00ebn wordt brandstof geproduceerd uit voedingsstoffen zoals zetmeel &#8230; <a title=\"Eerste en tweede generatie\" class=\"read-more\" href=\"https:\/\/www.biobasedpress.eu\/nl\/2011\/04\/eerste-en-tweede-generatie\/\" aria-label=\"Lees meer over Eerste en tweede generatie\">Lees verder<\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rop_custom_images_group":[],"rop_custom_messages_group":[],"rop_publish_now":"initial","rop_publish_now_accounts":[],"rop_publish_now_history":[],"rop_publish_now_status":"pending","footnotes":""},"categories":[249],"tags":[37,11,126,36],"class_list":["post-757","post","type-post","status-publish","format-standard","hentry","category-groene-grondstoffen","tag-biopolymeren","tag-duurzaamheid","tag-gewassen","tag-tweede-generatie"],"yoast_head":"<title>Eerste en tweede generatie - Bio Based Press<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.biobasedpress.eu\/nl\/2011\/04\/eerste-en-tweede-generatie\/\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Eerste en tweede generatie - Bio Based Press\" \/>\n<meta property=\"og:description\" content=\"In het debat over biobrandstoffen neemt het onderscheid tussen eerste generatie en tweede generatie technologie\u00ebn een belangrijke plaats in. 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