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Ha marang-rang a lihlahisoa tsa ethanol a tiisa kapa a nyamela, bahlahisi ba bangata ba ethanol ba khetha ho tsepamisa maikutlo ho tlhahiso ea boleng ho tsoa ho li-coproducts. Lihlahisoa tse omisitsoeng tsa distiller tse nang le lihlahisoa (DDGS) have long been an undervalued coproduct. Empa ho 28 ho 32 liprotheine tsa liphesente, e na le protheine e ngata haholo ho elelloa boleng ba eona bo felletseng joaloka phepo e ntle, athe ka nako e ts'oanang e na le protheine e tlase haholo hore e ka sebelisoa maemong a phahameng haholo bakeng sa phepelo ea monogastric e kang ea liphoofolo tse tsoang metsing, swine, and poultry.
This is a common challenge across the animal feed industry and represents a huge opportunity in the field of precision animal nutrition, ho hlalosoa e le ho fepa phoofolo e fang litlhoko tsa eona tsa phepo e nepahetseng. Menyetla e meng, such as the rapid growth of aquaculture and the high cost and limited availability of fish meals, matlafatsa mokhoa ona oa mmaraka.
Omella, Wet, and Electrostatics tsoa, multiple technologies have entered the market to address the need to generate high-protein coproducts. These technologies can be classified into two segments: tse kopantsoeng le ts'ebetso ea tlhahiso ea ethanol mme li sebetsa melatsoaneng ea lits'ebetso tse metsi. And those that occur after the ethanol production process and operate on dry process streams. The wet technologies often utilize combination of separation methods that rely on particle size modification such as grinding, khethollo ea boholo ba phatsa joalo ka ho sefa kapa ho hlahloba, le karohano ea bongata joalo ka karohano ea leholiotsoana ho arola tomoso ho fiber ea semela. These systems may be before or after the fermentation stage. Leha ho le joalo, the separation of protein from fiber occurs before distillers grains are dried. These wet systems are integrated into ethanol process and therefore operate simultaneously with ethanol plant.
Ka lehlakoreng le leng, dry processing methods are independent of the ethanol production process mme sebakeng sa hoo o sebetse molatsoaneng oa DDGS ka kotloloho. Litsamaiso tse joalo hangata li sebelisa ho sila, air classification, or dry sieving. Mokhoa o mong oa lipale o sebelisa karohano ea motlakase ho hlahisa protheine e phahameng ea DDGS ka ho tlosa fiber ka ntle ho metsi, Ts'ebetso ea morao-rao e ikemetseng molemong oa tlhahiso ea ethanol.
Electrostatics ke ntho e etsahalang hoo e batlang e le motho e mong le e mong ea kileng a itemohela bophelo ba letsatsi le letsatsi, empa ke ba fokolang ba kopaneng le bona maemong a indasteri. It is the effect of rubbing a balloon on a person’s hair. Ha balune ea rabara e kopana le moriri oa motho, e tlosa lielektrone moriri. Lebaka ke hobane rabara le lipolima tse ngata li na le motlakase o phahameng (kamano ea lielektrone). Balune e sala le tefiso e mpe ea letlooa, kaha bokeletseng dieleketerone tse eketsehileng, 'me moriri oa taba o na le tefiso e ntle. Electrical charges repel each other, kahoo moriri oa sehlooho o ema ka sepheo sa ho holisa sebaka se pakeng tsa likhoele tse ling tse hlatsoitsoeng hantle.
Tabeng ea DDGS, protein and fiber acquire opposite electrical charges upon contact with each other, allowing them to be separated from each other in a high-strength electric field.
Electrostatics is not a new phenomenon and has a large number of real-world and industrial applications. Electrostatic karohano has been used by selected industries for many years. In mineral processing and recycling applications, electrostatic karohano e bile ka tšebeliso ea khoebo bakeng sa bonyane 50 lilemo tse. Electrostatic karohano ea thepa e thehiloeng limela e se e fuputswa ka tse fetang 140 lilemo tse, le litokelo tsa molao tsa pele tsa karohano electrostatic tsa middlings phofo koro filed pele ho moo 1880.
tsoa, ts'ebetso ea motlakase e amohetse tlhokomelo e ngata e le mokhoa oa ho tsepamisa mohopolo liprotheine tsa limela. Nts'etsopele ena e potlakile nakong e fetileng 10 ho 20 lilemo tse, le liunivesithi tse ngata tsa lipatlisiso tsa Europe le U.S. sebelisa mekhoa electrostatic karohano ho mefuta e fapaneng mefuta e ea thepa ho akarelletsa le DDGS, lijo oilseed, le lierekisi le li-pulse. Ho tsoa patlisisong ena, ho hlakile hore mekhoa electrostatic na le monyetla oa ho hlahisa e ncha, liprotheine tsa limela tsa boleng bo holimo le lihlahisoa, le ho fana ka mokhoa o mong oa mekhoa ea ho etsa metsi.
Mekhoa ea karohano electrostatic fana ka menyetla fetang mekhoa metsi karohano, ho kenyelletsa theko le ts'ebetso ea ts'ebetso ho tsoa ts'ebetsong ea tlhahiso ea ethanol. Mekhoa ea karohano ea motlakase e fana ka monyetla oa ho hloka lik'hemik'hale kapa metsi. That makes cleaning easier since the rate of bacterial growth is reduced in dry products. 'Me karohano ea motlakase e bonolo, ka hore ha e fetole ts'ebetso ea protheine ea tlhaho.
ST Helmets & Technology esale sebelisa karohano electrostatic ka dikopo liindasteri ho tloha 1995. It is used to process fly ash from coal power plants. tse fetang 20 boima ba lithane tse limilione tsa sehlahisoa fofa molora li se li sebetswa ke separators STET hlomamisa ka U.S.. a le mong.
Leha ho ba bang, repurposing technology to process fly ash (diminerale e khalase ea aluminosilicate e setseng ho mashala a tukang bakeng sa motlakase) ho tsepamisa mohopolo liprotheine tsa semela tse tsoang DDGS ho ka utloahala ho makatsa. In truth, 'maraka oa DDGS le' maraka oa molora oa fofa li arolelana lintho tse ts'oanang ka mokhoa o makatsang. Bakeng sa qalo, both products are generated in large volumes in the U.S. With an estimated 36 million metric tons of distillers grains produced by the U.S. indasteri ea ethanol ka 2019. Ka papiso, U.S. indasteri ea matla a mashala e hlahisitsoeng hohle 35 limilione tse likete tsa metha ea molora oa fofa ho 2017. Lihlahisoa ka bobeli li rekisoa ka maqhubu a tlase. Their value is highly dependent on processing and transporting large volumes at low costs.
Both DDGS and fly ash ultimately derive their value from displacing other higher-cost materials. Fofa molora bakeng sa samente, the most expensive component in ready-mix concrete. DDGS e hlōlisana le mehloli e meng ea protheine e kang soya, canola, and sunflower meal, hara tse ding.
DDGS and fly ash have to make the journey from low-value waste stream to value-added coproduct. Fly ash was long considered a waste product. To be landfilled until low-cost technologies enabled it to be recycled as a value-added component in ready-mix concrete. DDGS e entse phetoho e tšoanang, from being considered a low-value feed material to becoming a manufactured feed ingredient. It is globally exported and increasingly sold under trademarked names with an emphasis on quality and consistency.
Qetellong, it looks likely that the long-term trend of maximizing the value of ethanol coproducts, ho kenyelletsa le lijo-thollo tsa distiller, e tla tsoelapele. Mekhoa ea ts'ebetso ea theknoloji e tla tsoelapele ho ba bohlokoa ho ntlafatsa ts'ebetso ea tekheniki ea lihlahisoa tsa protheine. hape, shaping their value-creation potential for the ethanol industry.
Mahlale ana a tla hloka ho bonts'a ts'ebetso e ts'oanang, phahameng tšepahala, low cost, and rapid return of capital to end users. Iteanye le rona now for more information.
