{"id":400,"date":"2018-08-03T08:51:09","date_gmt":"2018-08-03T00:51:09","guid":{"rendered":"https:\/\/www.htoilmachine.com\/blog\/?p=400"},"modified":"2018-08-03T08:58:26","modified_gmt":"2018-08-03T00:58:26","slug":"types-of-biofuel","status":"publish","type":"post","link":"https:\/\/www.htoilmachine.com\/blog\/biodiesel\/types-of-biofuel\/","title":{"rendered":"Types Of Biofuel"},"content":{"rendered":"

Biofuels, like fossil fuels, come in a number of forms and meet a number of different energy needs. The class of biofuels is subdivided into two generations, each of which contains a number of different fuels that will be explored in this article.<\/p>\n

First Generation Biofuels<\/h2>\n

First generation biofuels are made from sugar, starch, or vegetable oil. They differ from \u201csecond generation biofuels\u201d in that their feedstock (the plant or algal material from which they are generated) is not sustainable\/green or, if used in large quantity, would have a large impact on the food supply. First generation biofuels are the \u201coriginal\u201d biofuels and constitute the majority of biofuels currently in use.<\/p>\n

Second Generation Biofuels<\/h2>\n

Second generation biofuels are \u201cgreener\u201d in that they are made from sustainable feedstock. In this use, the term sustainable is defined by the availability of the feedstock, the impact of its use on greenhouse gas emissions, its impact on biodiversity, and its impact on land use (water, food supply, etc.). At this point, most second generation fuels are underdevelopment and not widely available for use.<\/p>\n

Biofuel Table<\/h2>\n

This table breaks biofuels down by generation and then explores their uses, energy densities, and greenhouse gas impacts. Specific biofuels from the table are selected for further exploration on subsequent pages.\u00a0<\/span>

<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Fuel<\/strong><\/td>\nFeedstock<\/strong><\/td>\nEnergy Density<\/strong><\/p>\n

(megajoules\/kilogram)<\/strong><\/td>\n

Greenhouse Gas<\/strong><\/p>\n

CO2<\/sub>(kg\/kg)<\/strong><\/td>\n

Notes<\/strong><\/td>\n<\/tr>\n
First Generation<\/strong><\/td>\n<\/tr>\n
\n

Bioalcohol<\/strong><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Ethanol<\/strong><\/p>\n

Propanol<\/strong><\/p>\n

Butanol<\/strong><\/td>\n

Starches from wheat, corn, sugar cane, molasses, potatoes, other fruits<\/td>\nBy Type<\/p>\n

30<\/p>\n

34<\/p>\n

36.6<\/td>\n

By Type<\/p>\n

1.91<\/p>\n

N\/A<\/p>\n

2.37<\/td>\n

<\/td>\n<\/tr>\n
Biodiesel<\/strong><\/a><\/td>\nOils and fats including animal fats, vegetable oils, nut oils, hemp, and algae<\/td>\n37.8<\/td>\n2.85<\/td>\n<\/td>\n<\/tr>\n
Green Diesel<\/strong><\/td>\nMade from hydrocracking oil and fat feedstock<\/td>\n48.1<\/td>\n3.4<\/td>\nChemically identical to fossil fuel diesel<\/td>\n<\/tr>\n
Vegetable Oil<\/strong><\/a><\/p>\n

Castor Oil<\/strong><\/a><\/p>\n

Olive Oil<\/strong><\/a><\/p>\n

Fat<\/strong><\/p>\n

Sunflower Oil<\/strong><\/a><\/td>\n

Unmodified or slightly modified<\/td>\nBy Type<\/p>\n

39.5<\/p>\n

39<\/p>\n

32<\/p>\n

40<\/td>\n

By Type<\/p>\n

2.7<\/p>\n

2.8<\/p>\n

N\/A<\/p>\n

2.8<\/td>\n

<\/td>\n<\/tr>\n
Bioethers<\/strong><\/td>\nDehydration of alcohols<\/td>\nN\/A<\/td>\nN\/A<\/td>\nThese are additives to other fuels that increase performance and decrease emissions, particularly ozone<\/td>\n<\/tr>\n
Biogas<\/strong><\/td>\nMethane made from waste crop material through anaerobic digestion or bacteria<\/td>\n55<\/td>\n2.74 (does not take into account the direct effect of methane, which is 23X more effective as a GHG than CO2<\/sub><\/td>\nSame properties as methane from fossil fuels<\/td>\n<\/tr>\n
Solid Biofuels<\/strong><\/p>\n

Wood<\/strong><\/p>\n

Dried plants<\/strong><\/p>\n

Bagasse<\/strong><\/p>\n

Manure<\/strong><\/p>\n

Seeds<\/strong><\/td>\n

Everything from wood and sawdust to garbage, agricultural waste, manure<\/td>\nBy Type<\/p>\n

16-21<\/p>\n

10-16<\/p>\n

10<\/p>\n

10-15<\/p>\n

15<\/td>\n

By Type<\/p>\n

1.9<\/p>\n

1.8<\/p>\n

1.3<\/p>\n

N\/A<\/p>\n

N\/A<\/td>\n

This category includes a very wide variety of materials. Manure has low CO2<\/sub>\u00a0emissions, but high nitrate emissions.<\/td>\n<\/tr>\n
Second Generation<\/strong><\/td>\n<\/tr>\n
Cellulosic ethanol<\/strong><\/td>\nUsually made from wood, grass, or inedible parts of plants<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Algae – based biofuels<\/strong><\/td>\nMultiple different fuels made from algae<\/td>\nCan be used to produce any of the fuels above, as well as jet fuel<\/td>\nSee specific fuels above<\/td>\nMore expensive, but may yield 10-100X more fuel per unit area than other biofuels<\/td>\n<\/tr>\n
Biohydrogen<\/strong><\/td>\nMade from algae breaking down water.<\/td>\nHydrogen compressed to 700 times atmospheric pressure has energy density of<\/p>\n

123<\/td>\n

Does not have any greenhouse effect.<\/td>\nUsed in place of the hydrogen produced from fossil fuels<\/td>\n<\/tr>\n
Methanol<\/strong><\/td>\nInedible plant matter<\/td>\n19.7<\/td>\n1.37<\/td>\nMore toxic and less energy dense than ethanol<\/td>\n<\/tr>\n
Dimethylfuran<\/strong><\/td>\nMade\u00a0 from fructose found in fruits and some vegetables<\/td>\n33.7<\/td>\n<\/td>\nEnergy density close to that of gasoline. Toxic to respiratory tract and nervous system<\/td>\n<\/tr>\n
Fischer-Tropsch Biodiesel<\/strong><\/td>\nWaste from paper and pulp manufacturing<\/td>\n37.8<\/td>\n2.85<\/td>\nProcess is just an elaborate chemical reaction that makes hydrocarbon from carbon monoxide and hydrogen<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Biofuels, like fossil fuels, come in a number of forms and meet a number of different energy needs. The class of biofuels is subdivided into two generations, each of which contains a number of different fuels that will be explored in this article. First Generation Biofuels First generation biofuels are made from sugar, starch, or […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[242],"tags":[407],"yoast_head":"\nTypes Of Biofuel - Edible Oil Expeller Machinery<\/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.htoilmachine.com\/blog\/biodiesel\/types-of-biofuel\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Types Of Biofuel - Edible Oil Expeller Machinery\" \/>\n<meta property=\"og:description\" content=\"Biofuels, like fossil fuels, come in a number of forms and meet a number of different energy needs. 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