CN102994570B - Method for producing biomass energy alcohol by use of soapberry fruit peel fermentation - Google Patents
Method for producing biomass energy alcohol by use of soapberry fruit peel fermentation Download PDFInfo
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Abstract
The invention discloses a method for preparing biomass energy alcohol by use of soapberry fruit peel fermentation. The method comprises the following steps of: soaking dry soapberry fruit in water; after the peel becomes soft, separating the soaking liquid from the soapberry fruit; separating kernel from peel; smashing the peel, putting into the soaking liquid, and stirring and extracting for 2-7 hours; separating the peel residue, squeezing wet peel, and combining the soaking liquid and the squeezing liquid; performing high-temperature sterilization on the extraction liquid, cooling to 28-40 DEG C and preserving heat; adding dry yeast into some of the extraction liquid for activation; adding the action liquid into some of the extraction liquid for inoculation, and fermenting at 28-37 DEG C; activating residual extraction liquid when the fermentation stops, and adding required substances for further fermentation, wherein the total fermentation time is 4-10 days; preheating the fermentation mash liquid which then enters a coarse distillation tower, and performing ethanol primary separation; enabling the fermentation mash liquid to enter a rectifying tower to further obtain a gaseous product with relatively high mass concentration of ethanol; and enabling the gaseous product to enter a molecular sieve adsorption tower to obtain fuel ethanol. The method disclosed by the invention has simple technology and short activation time, does not need fermentation nutrient substances and is energy-saving and environment-friendly.
Description
Technical field
The present invention relates to a kind of method of utilizing Seed of Chinese Soapberry pericarp fermentative production alcohol, particularly a kind of method of utilizing sugar in Seed of Chinese Soapberry pericarp and glucosides to produce alcohol.
Background technology
Day by day exhausted at petroleum resources, under the situation that environmental protection consciousness is strengthened, people more value the social sustainable development pattern of coordinating consideration from resource, the energy and economic integration.Under this situation, people start to pay close attention to bioenergy, as the production research of fuel alcohol, biofuel, gasifying biomass and liquefied fuel equal energy source material.Seed of Chinese Soapberry (Sapindus mukorossi Gaerth.) is a kind of plant among the people, is familiar with since ancient times another name by people: circle Chinese honey locust, wood are suffered from son, Fructus Sapindi Mukouossi, skin soap etc.In a Jiangsu and Zhejiang Provinces generation, cultivation Seed of Chinese Soapberry tree, mostly as green belt, has a large amount of Seed of Chinese Soapberry to be really dropped or to be piled up in roadside every year, has caused the waste of resource.Seed of Chinese Soapberry is all precious from head to foot in fact: the pericarp of Seed of Chinese Soapberry contains abundant carbohydrate and saponin component, and kernel is rich in oil.Carbohydrate in Seed of Chinese Soapberry pericarp is mainly some monose and a small amount of oligosaccharides and polysaccharide such as fructose, rhamnosyl, pectinose; Saponin(e in Seed of Chinese Soapberry pericarp consists of sapogenin and glycosyl, and these carbohydrates and glycosyl can be microbial growth good carbon source is provided.In addition, in Seed of Chinese Soapberry pericarp, also contain the compositions such as ten multiple amino acids such as a small amount of nicotinic acid, organic acid, phenolic acid and iron, calcium, magnesium, potassium, sodium, phosphorus, can be microbial growth breeding nitrogenous source and mineral substance are provided.But have document to show, the thick saponin(e from Seed of Chinese Soapberry pericarp is to beer wine brewing sugar yeast bacterium and produce gastral cavity candidiasis and have obvious anti-microbial activity, and yeast is suppressed to stronger, so utilize the yeast Seed of Chinese Soapberry that ferments to produce alcohol and have certain risk and difficulty.
Summary of the invention
The object of the present invention is to provide a kind of method of utilizing Seed of Chinese Soapberry really to manufacture biomass energy alcohol, improve the added value of discarded Seed of Chinese Soapberry fruit, reduce environmental pollution, realize the object that industry energy conservation reduces discharging.The invention provides and utilize Seed of Chinese Soapberry to produce the most effective yeast strain of bio-ethanol and maximize the method for producing bio-ethanol by yeast strain is fermented.
The technical solution adopted in the present invention is a kind of method of utilizing Seed of Chinese Soapberry pericarp fermentation to produce biological matter energy ethanol, the method comprises the following steps: 1) dry Seed of Chinese Soapberry is really carried out to pre-treatment, be soaked in water, with vibratory screening apparatus, soak solution is separated with Seed of Chinese Soapberry fruit after pericarp maceration; 2) with peeler, the fruit stone of Seed of Chinese Soapberry fruit is separated with pericarp, and pulverize pericarp with wet process disintegrator, pericarp after pulverizing is incorporated in the soak solution of step 1), under the constant temperature atmospheric pressure state of 20 ℃-70 ℃, stir again and extract 2-7h, with vibratory screening apparatus, extracting solution is separated with the peel residue after pulverizing, and with squeezing machine, wet pericarp is squeezed, merge soak solution and pressed liquor; 3) extracting solution of above-mentioned gained is pumped in sterilization tank, in sterilization tank chuck, logical steam, is heated to 80-90 ℃ by extracting solution, maintains 1-2h, and then logical circulating water is incubated after 28-40 ℃, obtains Seed of Chinese Soapberry sterilizing extracting solution T kilogram; 4) get the Seed of Chinese Soapberry sterilizing extracting solution of 10%-60% T kilogram and add the weight dry yeast of part Seed of Chinese Soapberry sterilizing extracting solution 3%-10% for this reason, under 32-40 ℃ of temperature atmospheric pressure state, activate 15-40min, obtain activation solution; 5) activation solution is cooled to 32 ℃ ± 1 ℃, adds the Seed of Chinese Soapberry sterilizing extracting solution of 15%-60%T kilogram to inoculate, in 28-37 ℃ of fermentation, rotating speed 0-150r/min; 6) when occurring stuck fermentation, after residue Seed of Chinese Soapberry sterilizing extracting solution is activated by step 4), add, continue at 28-37 ℃ of condition of normal pressure bottom fermentation, rotating speed 0-150r/min, total fermentation time is 4-10 days; 7) by fermentation liquid, through being preheating to 30-60 ℃, to enter that tower presses be the decompression topping still of 0.2-0.5atm, carry out ethanol initial gross separation, it is the rectifying tower of 1.2-1.8atm that overhead product enters tower pressure after 60-100 ℃ of preheating, further obtain the gas-phase product of ethanol better quality concentration, then enter adsorbing tower with molecular sieve and obtain alcohol fuel.
Described pre-treatment that dry Seed of Chinese Soapberry is really carried out refers to that in dry Seed of Chinese Soapberry fruit, adding is the water of its 1-5 times weight, stirs and extracts 10-15h with 20-60r/min rotating speed under the constant temperature atmospheric pressure state of 20 ℃-70 ℃.
Certainly also can use fresh Seed of Chinese Soapberry really to make, soak the water use and can suitably reduce, because Seed of Chinese Soapberry is really seasonal fruit, be really the consumption foundation of whole making processes so take dry Seed of Chinese Soapberry.
For the dry yeast of ethanol fermentation, be one or more of high activity dried yeast, thermotolerant yeast, yellow wine yeast, cereuisiae fermentum, wine yeast.
During described activation Seed of Chinese Soapberry sterilizing extracting solution used be Seed of Chinese Soapberry sterilizing supernatant liquor or by Seed of Chinese Soapberry sterilizing supernatant liquor dilution 1-3 the liquid after doubly.
Described stuck fermentation refers in fermented liquid and no longer includes Bubble formation, at the bottom of bacterial classification is all settled down to tank.
Described alcohol distillation method is that the first step is slightly heated up in a steamer, second step rectifying; Slightly heat up in a steamer to ethanol content in distillate and be less than 0.5%(v/v), cut enters rectifying tower and carries out rectifying.
The present invention compares with existing research, has following obvious advantage and beneficial effect: 1. present method technique is simple, adopts dry yeast, can complete at short notice activation, has saved the operations such as a large amount of substratum used when fresh yeast activates continuously and sterilizing; 2. present method is extracted the suitable growth of the pH of Seed of Chinese Soapberry liquid own and fermentation, do not need to add in addition acids and regulate PH; And when fermentation starts, needn't add Nutrious fermented material, be a kind of method of energy-conserving and environment-protective.
Embodiment
The following examples can make professional and technical personnel more understand the present invention, but do not limit in any form the present invention.
Embodiment 1: in No. 1 extractor, add the dry Seed of Chinese Soapberry fruit of 16kg and 48kg tap water, at 70 ℃, rotating speed with 50r/min stirs extraction 8h, with vibratory screening apparatus, soak solution is separated with Seed of Chinese Soapberry fruit, and with peeler, fruit stone is separated with pericarp, then with wet process disintegrator, pulverize pericarp, pericarp after pulverizing is incorporated in soak solution, at 70 ℃, rotating speed with 50r/min stirs extraction 3h again, with vibratory screening apparatus, this soak solution is separated with Seed of Chinese Soapberry fruit, obtain 40kg soak solution, after squeezing machine squeezing, obtain pressed liquor 5kg, merge soak solution and pressed liquor, obtain extracting solution 45kg.This 45kg extracting solution is pumped into sterilization tank, and in sterilization tank chuck, logical steam (vapor pressure 0.2-0.3MPa) is heated to 80-90 ℃, maintains 1h, then insulation after logical circulating water to 32 ℃.Afterwards this sterilizing extracting solution of 35kg is squeezed in No. 2 fermentor tanks.5kg sterilizing extracting solution is pumped in No. 1 fermentor tank, add sterilized water and be diluted to 10kg, in No. 1 fermentor tank, getting yellow wine yeast 360g makes an addition in the sterilizing extracting solution that this 10kg diluted, circulating water to 28 ℃ after 32 ℃ of activation 15min, afterwards this activation solution is all added in No. 2 fermentor tanks to 28 ℃ of standing for fermentation.Ferment and within the 2nd day, occur stuck fermentation (phenomenon that conventionally there will be stuck fermentation in fermentation for about 2-5 days), getting 5kg sterilizing extracting solution adds yellow wine yeast 360g to activate in No. 1 fermentor tank again, after activation, this activation solution is all squeezed into fermentor tank relaying supervention ferment No. 2, ferment 5 days, in the Seed of Chinese Soapberry karusen obtaining, the volume fraction of ethanol is 7.5%.By fermentation liquid, through being preheating to 30 ℃, to enter that tower presses be the decompression topping still of 0.4atm, carry out ethanol initial gross separation, overhead product pumps into after 60 ℃ through being preheating to that to enter that tower presses be 1.52 rectifying tower, further obtain the gas-phase product of ethanol better quality concentration, then enter 4A adsorbing tower with molecular sieve and obtain high purity alcohol fuel (conventionally can select the dry yeast of a day hawk, Angel or other plate).
Embodiment 2: in No. 1 extractor, add the dry Seed of Chinese Soapberry fruit of 16kg and 32kg tap water, at 30 ℃, rotating speed with 43r/min stirs extraction 12h, with vibratory screening apparatus, this soak solution is separated with Seed of Chinese Soapberry fruit, and with peeler, fruit stone is separated with pericarp, then with wet process disintegrator, pulverize pericarp, pericarp after pulverizing is incorporated in soak solution, at 30 ℃, rotating speed with 43r/min stirs extraction 5h again, with vibratory screening apparatus, this soak solution is separated with Seed of Chinese Soapberry fruit, obtain 22kg soak solution, after squeezing machine squeezing, obtain pressed liquor 6kg, merge soak solution and pressed liquor, obtain extracting solution 28kg.This 28kg extracting solution is pumped into sterilization tank, and in sterilization tank chuck, logical steam (vapor pressure 0.2-0.3MPa) is heated to 80-90 ℃, maintains 1h, then insulation after logical circulating water to 28 ℃.Afterwards this sterilizing extracting solution of 4kg is pumped in No. 2 fermentor tanks.In No. 1 fermentor tank, get a day hawk high activity dried yeast, Angel wine yeast (day hawk high activity dried yeast 110g, Angel wine yeast 250g) altogether 360g make an addition in 12kg sterilizing extracting solution, circulating water to 28 ℃ after 32 ℃ of activation 15min.Afterwards this activation solution is all added in No. 2 fermentor tanks to 28 ℃ of standing for fermentation.Ferment and within the 3rd day, occur stuck fermentation, get again 12kg sterilizing extracting solution and add a day hawk high activity dried yeast, Angel wine yeast (day hawk high activity dried yeast 110g, Angel wine yeast 250g) 360g activates in No. 1 fermentor tank altogether, after activation, this activation solution is all pumped into fermentor tank relaying supervention ferment No. 2.Fermentation 5d, in the Seed of Chinese Soapberry karusen obtaining, the volume fraction of ethanol is 7.5%.By fermentation liquid, through being preheating to 50 ℃, to enter that tower presses be the decompression topping still of 0.57atm, carry out ethanol initial gross separation, overhead product pumps into after being preheating to 70 ℃ and enters tower pressure is 1.38 rectifying tower, further obtain the gas-phase product of ethanol better quality concentration, then enter 3A adsorbing tower with molecular sieve and obtain high purity alcohol fuel.
Also can use fresh Seed of Chinese Soapberry really to make, soaking the water using can suitably reduce, because Seed of Chinese Soapberry is really seasonal fruit, the time that can really make of fresh Seed of Chinese Soapberry is not long, so take dry Seed of Chinese Soapberry, is really the consumption foundation of whole making processes.
Embodiment 3: in No. 1 extractor, add the dry Seed of Chinese Soapberry fruit of 30kg and 30kg tap water, at 70 ℃, rotating speed with 20r/min stirs extraction 10h, with vibratory screening apparatus, this soak solution is separated with Seed of Chinese Soapberry fruit, and with peeler, fruit stone is separated with pericarp, then with wet process disintegrator, pulverize pericarp, pericarp after pulverizing is incorporated in soak solution, at 70 ℃, rotating speed with 50r/min stirs extraction 7h again, with vibratory screening apparatus, this soak solution is separated with Seed of Chinese Soapberry fruit, obtain 20kg soak solution, after squeezing machine squeezing, obtain pressed liquor 5kg, merge soak solution and pressed liquor, obtain extracting solution 25kg.This 25kg extracting solution is pumped in sterilization tank, and in sterilization tank chuck, logical steam (vapor pressure 0.2-0.3MPa) is heated to 80-90 ℃, maintains 1h, then insulation after logical circulating water to 30 ℃.Afterwards this sterilizing extracting solution of 8kg is pumped in No. 2 fermentor tanks.In No. 1 fermentor tank, get the golden wheat S-189 of middle Austria dry yeast 700g and make an addition in 7kg sterilizing extracting solution, circulating water to 30 ℃ after 35 ℃ of activation 30min.Afterwards this activation solution is all pumped in No. 2 fermentor tanks to 30 ℃ of standing for fermentation.Ferment and within the 3rd day, occur stuck fermentation, getting 10kg sterilizing extracting solution adds the golden wheat S-189 of middle Austria dry yeast 500g to activate in No. 1 fermentor tank again, after activation, this activation solution is all pumped into fermentor tank relaying supervention ferment No. 2, fermentation 7d, in the Seed of Chinese Soapberry karusen obtaining, the volume fraction of ethanol is 9.7%.Fermentation liquid is preheating to 40 ℃, and to enter that tower presses be the decompression topping still of 0.33atm, carry out ethanol initial gross separation, overhead product is preheating to 80 ℃ and pumps into that to enter that tower presses be 1.43 rectifying tower, further obtain the gas-phase product of ethanol better quality concentration, then enter 3A adsorbing tower with molecular sieve and obtain high purity alcohol fuel.
Embodiment 4: in No. 1 extractor, add 20kg Seed of Chinese Soapberry fruit and 100kg tap water, at 50 ℃, rotating speed with 30r/min stirs extraction 15h, with vibratory screening apparatus, this soak solution is separated with Seed of Chinese Soapberry fruit, and with peeler, fruit stone is separated with pericarp, then with wet process disintegrator, pulverize pericarp, pericarp after pulverizing is incorporated in soak solution, at 50 ℃, rotating speed with 30r/min stirs extraction 3h again, with vibratory screening apparatus, this soak solution is separated with Seed of Chinese Soapberry fruit, obtain 80kg soak solution, after squeezing machine squeezing, obtain pressed liquor 10kg, merge soak solution and pressed liquor, obtain extracting solution 90kg.This 90kg extracting solution is pumped in sterilization tank, and in sterilization tank chuck, logical steam (vapor pressure 0.2-0.3MPa) is heated to 80-90 ℃, maintains 1h, then insulation after logical circulating water to 37 ℃.Afterwards this sterilizing extracting solution of 25kg is pumped in No. 2 fermentor tanks.In No. 1 fermentor tank, get thermotolerant yeast, cereuisiae fermentum, high activity dried yeast (thermotolerant yeast 1.5kg, cereuisiae fermentum 1kg, high activity dried yeast 1.5kg) altogether 4kg make an addition in 50kg sterilizing extracting solution, circulating water to 37 ℃ after 40 ℃ of activation 40min, afterwards this activation solution is all pumped in No. 2 fermentor tanks to 37 ℃ of standing for fermentation.Ferment and within the 4th day, occur stuck fermentation, getting 15kg sterilizing extracting solution adds thermotolerant yeast, cereuisiae fermentum, a day hawk high activity dried yeast (thermotolerant yeast 350g, cereuisiae fermentum 500g, high activity dried yeast 500g) to be total to 1.35kg and to activate in No. 1 fermentor tank again, after activation, this activation solution is all pumped into fermentor tank relaying supervention ferment No. 2, fermentation 6d, in the Seed of Chinese Soapberry karusen obtaining, the volume fraction of ethanol is 8.4%.By fermentation liquid, through being preheating to 55 ℃, to enter that tower presses be the decompression topping still of 0.2atm, carry out ethanol initial gross separation, overhead product is preheating to 84 ℃ and pumps into that to enter that tower presses be 1.5 rectifying tower, further obtain the gas-phase product of ethanol better quality concentration, then enter 4A adsorbing tower with molecular sieve and obtain high purity alcohol fuel.
Claims (5)
1. a method of utilizing Seed of Chinese Soapberry pericarp fermentation to produce biological matter energy ethanol, is characterized in that: 1) dry Seed of Chinese Soapberry really carried out to pre-treatment, is soaked in water, and with vibratory screening apparatus, soak solution is separated with Seed of Chinese Soapberry fruit after pericarp maceration; 2) with peeler, the fruit stone of Seed of Chinese Soapberry fruit is separated with pericarp, and pulverize pericarp with wet process disintegrator, pericarp after pulverizing is incorporated in the soak solution of step 1), under the constant temperature atmospheric pressure state of 20 ℃-70 ℃, stir again and extract 2-7h, with vibratory screening apparatus, extracting solution is separated with the peel residue after pulverizing, and with squeezing machine, wet pericarp is squeezed, merge soak solution and pressed liquor; 3) extracting solution of above-mentioned gained is pumped in sterilization tank, in sterilization tank chuck, logical steam, is heated to 80-90 ℃ by extracting solution, maintains 1-2h, and then logical circulating water is incubated after 28-40 ℃, obtains Seed of Chinese Soapberry sterilizing extracting solution T kilogram; 4) get the Seed of Chinese Soapberry sterilizing extracting solution of 10%-60% T kilogram and add the weight dry yeast of part Seed of Chinese Soapberry sterilizing extracting solution 3%-10% for this reason, under 32-40 ℃ of temperature atmospheric pressure state, activate 15-40min, obtain activation solution; 5) activation solution is cooled to 32 ℃ ± 1 ℃, adds the Seed of Chinese Soapberry sterilizing extracting solution of 15%-60%T kilogram to inoculate, in 28-37 ℃ of fermentation, rotating speed 0-150r/min; 6) when occurring stuck fermentation, after residue Seed of Chinese Soapberry sterilizing extracting solution is activated by step 4), add, continue at 28-37 ℃ of condition of normal pressure bottom fermentation, rotating speed 0-150r/min, total fermentation time is 4-10 days; 7) by fermentation liquid, through being preheating to 30-60 ℃, to enter that tower presses be the decompression topping still of 0.2-0.5atm, carry out ethanol initial gross separation, it is the rectifying tower of 1.2-1.8atm that overhead product enters tower pressure after 60-100 ℃ of preheating, further obtain the gas-phase product of ethanol better quality concentration, then enter adsorbing tower with molecular sieve and obtain alcohol fuel.
2. a kind of method of utilizing Seed of Chinese Soapberry pericarp fermentation to produce biological matter energy ethanol according to claim 1, it is characterized in that: described pre-treatment that dry Seed of Chinese Soapberry is really carried out refers to that in dry Seed of Chinese Soapberry fruit, adding is the water of its 1-5 times weight, stirs and extracts 10-15h with 20-60r/min rotating speed under the constant temperature atmospheric pressure state of 20 ℃-70 ℃.
3. according to one kind of claim 1, utilize the method for Seed of Chinese Soapberry pericarp fermentation to produce biological matter energy ethanol, it is characterized in that: for the dry yeast of ethanol fermentation, be one or more of high activity dried yeast, thermotolerant yeast, yellow wine yeast, cereuisiae fermentum, wine yeast.
4. according to one kind of claim 1, utilize the method for Seed of Chinese Soapberry pericarp fermentation to produce biological matter energy ethanol, it is characterized in that: during described activation Seed of Chinese Soapberry sterilizing extracting solution used be Seed of Chinese Soapberry sterilizing supernatant liquor or by Seed of Chinese Soapberry sterilizing supernatant liquor dilution 1-3 the liquid after doubly.
5. according to one kind of claim 1, utilize the method for Seed of Chinese Soapberry pericarp fermentation to produce biological matter energy ethanol, it is characterized in that: described stuck fermentation refers in fermented liquid and no longer includes Bubble formation, at the bottom of bacterial classification is all settled down to tank.
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