After the domestic fuel ethanol production project was halted, the production of fuel ethanol on non-food routes became extremely hot. Cellulose ethanol production has also been sought after by many companies.
This technology uses waste straw to produce fuel ethanol that replaces refined oil. According to the situation held by the reporter, there are a lot of projects that have been built and under construction currently using the technology in China. COFCO and Denmark Novozymes (the world's largest industrial enzyme preparation and microbiological preparation company) have invested 50 million yuan in Heilongjiang to jointly build a pilot base for the use of corn straw as cellulosic ethanol. The current scale is 500 tons/year. Hopefully, As soon as possible to expand to 5,000 tons / year; Jilin Fuel Ethanol Co., Ltd., said the person concerned, they have also started using straw to produce fuel ethanol, the annual output of 3,000 tons of the project, is expected to put into operation within the year; recently heard news, Henan Tianguan Enterprise Group The fiber ethanol project in Nanyang City has entered the final stage of construction and installation. This is China's first fiber ethanol production line with an annual output of 3,000 tons. According to the progress of the project, the project is scheduled to start production in October this year.
However, although straw fuel ethanol production has been regarded as a future development direction by domestic and foreign experts, and many domestic companies have spared no effort to participate, but from the current situation, straw ethanol production technology and cost have not achieved substantial The breakthrough is still too much to stay on the concept of speculation. There are several major reasons for this.
The first major bottleneck that exists is the serial development of cellulolytic enzymes. Starting from lignocellulose to produce fuel ethanol, biomacromolecules must be degraded to small sugars that can be used by yeast to produce ethanol. Lignocellulosic degradation technology can be achieved using two different technological routes of acid hydrolysis and enzymatic hydrolysis. The acid hydrolysis method requires high temperature, high pressure, and many inhibitors, fermentation difficulties, there are environmental problems. Enzymatic hydrolysis is relatively mild and only requires hydrolysis at room temperature. The selectivity is high, the inhibitor is less, and the purity of sugar is also high. However, the acquisition and use of cellulose hydrolyzing enzymes not only have the problem of high price, but also because of the strong correspondence, there is a problem of selection, and the pretreatment technology is complicated.
Second, there are also problems in the development of strains used for the five-carbon sugar fermentation technology project. Whether using grain or straw to produce fuel ethanol requires microbial fermentation. Straw ethanol is mainly made of cellulose and hemicellulose. Hemicellulose is hydrolyzed to produce five carbon sugar (xylose) and ethanol is produced. However, the conversion rate of the five-carbon sugar fermenting strain is very low, and the five-carbon sugar (xylose) does not easily produce ethanol. This requires the discovery of a good five-carbon sugar fermentation strain specifically designed to eat "coarse grains." No company has yet developed a five-carbon sugar fermentation strain with high utilization. Therefore, under the current circumstances, the cost of using straw to produce fuel ethanol is high, and companies are not cost-effective.
The third issue is the shipping radius. Corn stalks have the characteristics of hollowness and elasticity, with a weight of only 100-200 kilograms per cubic meter, and a weight of 720-750 kilograms per cubic meter of corn. If smashing, the process of removing the stress of corn stalks will generate energy consumption, and the transportation process will consume a lot of energy. Therefore, it is reasonable that the transportation radius of corn stalks should not exceed 50 km.
According to reports, at present, the country's rural areas can produce 700 million tons of straw each year. If they are used to produce fuel ethanol, they can be converted to 100 million tons, equivalent to three Daqing oil fields. The annual corn stalk in China is more than 150 million tons. Therefore, the prospect of using corn stalks to produce fuel ethanol is promising. The problem now is that if we want to make greater breakthroughs in technology, cost, and transportation, it will be difficult to achieve without three to five years of effort. It is understood that straw fuel ethanol is not only in China, but also a problem in the world.
Frame and fork: steel, painted finished,inner decals
Handle bar: aluminium alloy
Stem: aluminium alloy
Grip: rubber,colorful
Saddle: plastic shell,color PVC cover
Seat post: steel,CP with aluminium quick-release
Pedal: aluminium,ED axle with steel ball
Tire: natural rubber
Inner tube: butyl,A/V
Brake Lever: black, aluminium
Single stand: black, aluminium
Shifting lever: integrated aluminium
2. Features:
Durable
Easy to operate
Green product
Strong Packing
Perfect appearance
Perfect pre-sales & after-sales service
3. Package: SKD 85%, 1set/carton+woven bag or CKD 100% 2sets/4sets per carton
4. Additional Information:
Shortest delivery time
OEM & ODM are acceptable
An ISO9001:2008 Approved factory
Owning right of Imp. & Exp., export directly
Any inspections are acceptable, such as, CIQ, SGS, BV etc.
Supplying any Preferential Certificate of Origin(Such as, FORM A, FORM E, FORM F etc.)
We always stick to" The Lowest Profits & The Longest Co-operations".
This technology uses waste straw to produce fuel ethanol that replaces refined oil. According to the situation held by the reporter, there are a lot of projects that have been built and under construction currently using the technology in China. COFCO and Denmark Novozymes (the world's largest industrial enzyme preparation and microbiological preparation company) have invested 50 million yuan in Heilongjiang to jointly build a pilot base for the use of corn straw as cellulosic ethanol. The current scale is 500 tons/year. Hopefully, As soon as possible to expand to 5,000 tons / year; Jilin Fuel Ethanol Co., Ltd., said the person concerned, they have also started using straw to produce fuel ethanol, the annual output of 3,000 tons of the project, is expected to put into operation within the year; recently heard news, Henan Tianguan Enterprise Group The fiber ethanol project in Nanyang City has entered the final stage of construction and installation. This is China's first fiber ethanol production line with an annual output of 3,000 tons. According to the progress of the project, the project is scheduled to start production in October this year.
However, although straw fuel ethanol production has been regarded as a future development direction by domestic and foreign experts, and many domestic companies have spared no effort to participate, but from the current situation, straw ethanol production technology and cost have not achieved substantial The breakthrough is still too much to stay on the concept of speculation. There are several major reasons for this.
The first major bottleneck that exists is the serial development of cellulolytic enzymes. Starting from lignocellulose to produce fuel ethanol, biomacromolecules must be degraded to small sugars that can be used by yeast to produce ethanol. Lignocellulosic degradation technology can be achieved using two different technological routes of acid hydrolysis and enzymatic hydrolysis. The acid hydrolysis method requires high temperature, high pressure, and many inhibitors, fermentation difficulties, there are environmental problems. Enzymatic hydrolysis is relatively mild and only requires hydrolysis at room temperature. The selectivity is high, the inhibitor is less, and the purity of sugar is also high. However, the acquisition and use of cellulose hydrolyzing enzymes not only have the problem of high price, but also because of the strong correspondence, there is a problem of selection, and the pretreatment technology is complicated.
Second, there are also problems in the development of strains used for the five-carbon sugar fermentation technology project. Whether using grain or straw to produce fuel ethanol requires microbial fermentation. Straw ethanol is mainly made of cellulose and hemicellulose. Hemicellulose is hydrolyzed to produce five carbon sugar (xylose) and ethanol is produced. However, the conversion rate of the five-carbon sugar fermenting strain is very low, and the five-carbon sugar (xylose) does not easily produce ethanol. This requires the discovery of a good five-carbon sugar fermentation strain specifically designed to eat "coarse grains." No company has yet developed a five-carbon sugar fermentation strain with high utilization. Therefore, under the current circumstances, the cost of using straw to produce fuel ethanol is high, and companies are not cost-effective.
The third issue is the shipping radius. Corn stalks have the characteristics of hollowness and elasticity, with a weight of only 100-200 kilograms per cubic meter, and a weight of 720-750 kilograms per cubic meter of corn. If smashing, the process of removing the stress of corn stalks will generate energy consumption, and the transportation process will consume a lot of energy. Therefore, it is reasonable that the transportation radius of corn stalks should not exceed 50 km.
According to reports, at present, the country's rural areas can produce 700 million tons of straw each year. If they are used to produce fuel ethanol, they can be converted to 100 million tons, equivalent to three Daqing oil fields. The annual corn stalk in China is more than 150 million tons. Therefore, the prospect of using corn stalks to produce fuel ethanol is promising. The problem now is that if we want to make greater breakthroughs in technology, cost, and transportation, it will be difficult to achieve without three to five years of effort. It is understood that straw fuel ethanol is not only in China, but also a problem in the world.
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Our Mountain Bike is easy to operate in any outfit with a low step-through frame that's great for any pepole. Have strong packing and Perfect appearance. The mountain bicycle have a light weight and comfortable handle grips and seat .We have Perfect pre-sales & after-sales service.
Our Mountain Bike is easy to operate in any outfit with a low step-through frame that's great for any pepole. Have strong packing and Perfect appearance. The mountain bicycle have a light weight and comfortable handle grips and seat .We have Perfect pre-sales & after-sales service.
Key Specifications/Special Features
1. Specifications:Frame and fork: steel, painted finished,inner decals
Handle bar: aluminium alloy
Stem: aluminium alloy
Grip: rubber,colorful
Saddle: plastic shell,color PVC cover
Seat post: steel,CP with aluminium quick-release
Pedal: aluminium,ED axle with steel ball
Tire: natural rubber
Inner tube: butyl,A/V
Brake Lever: black, aluminium
Single stand: black, aluminium
Shifting lever: integrated aluminium
2. Features:
Durable
Easy to operate
Green product
Strong Packing
Perfect appearance
Perfect pre-sales & after-sales service
3. Package: SKD 85%, 1set/carton+woven bag or CKD 100% 2sets/4sets per carton
4. Additional Information:
Shortest delivery time
OEM & ODM are acceptable
An ISO9001:2008 Approved factory
Owning right of Imp. & Exp., export directly
Any inspections are acceptable, such as, CIQ, SGS, BV etc.
Supplying any Preferential Certificate of Origin(Such as, FORM A, FORM E, FORM F etc.)
We always stick to" The Lowest Profits & The Longest Co-operations".
After Service
1.If the package is broken because of the Express, you can complain with them.
2. Man-made damaged, buyers take full responsibility.
3.You may return most new, unused items sold within 7 days after you received the goods for exchange or refund. Pls contact us before you return. Our service representitive will help you and Handle Returns and Refunds Gracefully as a part of our business.
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