A biodisel manufacturing enterprise in Ningbo City has made use of the recycled gutter oil to produce biodisel, with an annual production of more than 6,000 tons. The enterprise named Ningbo Jieshen Green Energy Technology Co., Ltd is located in Jinshan Industrial Area of Fenghua City in Zhejiang Province.
It is the sole one in China domestic market that is engaged in recycling gutter oil and producing biodisel in Zhejiang Province of China. At present, its customers are mainly some buses and freighters in Shanghai because the recycled gutter oils are collected in Shanghai and its surrounding cities.
The workers poured those gutter oils into two of the five oilcans, and then those gutter oils flew into the factory and were processed into biodisel.
Vice president of the company Linjun Zhu says, “Those gutter oils are heated into a flowable state before residues of the gutter oils are filtered thorough the sieve; then the remaining raw oils are dehydrated under heated and high vacuum conditions. After the dehydration, the raw oils are mixed with methanol, sulfuric acid and catalysts undergoing at least two times of esterification. After the esterification, methanol is retrieved from the raw oils through the condenser under the low vacuum environment with a temperature of 85 ℃ ~ 90 ℃.”
If you walk into the plant, you would feel sort of searing heat. Steams now and then belch from the machines.
Conversion from gutter oils to the finished biodisel only costs less than 50 meters long production streamline. When people come to the last process, they would notice that the gutter oils of the soy sauce color have changed into a rice soup-colored liquid with sheer purities, that is the outcome of the process, biodisel.
Will Biodisel Generate Black Smog?
Can biodisel be used in diesel powered cars? A diesel lorry parks along the production ground, we may take an experiment.
The diesel lorrydriver fills fullthrottle all together with biodisel, and then the car starts running. Diesel lorrys traveling on the road in the plant for a while, the start-up phase is a bit difficult due to cold weather. But with the increased temperature of the lorry engine, power provided by the bio-diesel becomes a steady supply. There is no blown engine between the throttle and the shifting gear. Also there is no black smog discharged from the lorry exhaust pipe and no pungent smell after the diesel combustion.
The lorry is driven out of the plant and into the rampway section. Now lorry’s power weakened as the lorry is ascending. But after 1-2 seconds the advantages of bio-diesel show, the diesel lorry can move easily uphill.
Linjun Zhu says, “biodisel has a high flash point, so during the uphill, biodisel needs to reach 170 ℃inorder to provide the power. But this process is relatively short,and can’t affect the vehicle’s normal running. In addition, the biodisel contains lots of oxygen can be fully burnt in the engine. So biodisel has a relatively strong dynamic performance as long as to reach a flash point.”
Biodisel Sells Well
Last July, the Shanghai bus energy supplier Shanghai Yapu Petrol Group went to test the operation of the buses powered by biodisel.
The general manager Guoping Qian of Shanghai Yapu Petrol Group says, “After a series of tests, biodisel is ideal for the bus. We will promote all the buses to use biodisel which will help save energy, reduce carbon emissions, and decrease operating costs for public transport.”
Qian adds, "From the beginning of November last year, we have powered the freighters with biodisel. Every month we purchase more than one thousand tons of biodisel from Ningbo Jieshen Green Energy Technology Co., Ltd most of which are used to power the freighters on Shanghai Huangpu River. Besides, we have set up 6 bund biodisel filling stations.”
Biodisel is around one thousand yuan cheaper than petroleum diesel per ton.
Linjun Zhu says, “100 tons of gutter oils can generate 85 to 90 tons of biodisels via our technology. Now one ton of gutter oils cost around 4,400 yuan. Instead, the price of biodisel per ton is 7,500 yuan, which is around one thousand yuan cheaper than petroleum diesel per ton on the market. 10 to 15 tons of generated waste oils after refinement from the gutter oils can be sold at the price 3,500 yuan per ton as boiler fuels. So we can obtain more than 2,700 yuan profit deducting the cost when producing one ton of biodisel.”
More of Gutter Oil Feedstock Is Gathered from Shanghai.
“The biggest problem is that we can’t gather those gutter oils. “ Linjun says frankly, “The price 4,400 yuan for one ton of gutter oils they give is not competitive. In Ningbo, they simply can not acquire a large number of raw materials, only go to the surrounding cities such as Shanghai, Jiaxing to buy the gutter oils. At present we can gather 1,000 to 2,000 tons of gutter oils per month in Shanghai. Instead, we only can gather 100 tons of gutter oils or the least 30 tons of gutter oils per month in Ningbo. Now shanghai can provide the most feedstock, which at the same time increases transportation cost.”
Why can the company gather gutter oils in Shanghai instead of Ningbo? Linjun Zhu says, “Shanghai has imposed strict management and supervision on the gutter oil treatment. The related companies in Shanghai are more willing to sell their gutter oils to the companies like Ningbo Jieshen Green Energy Technology Co., Ltd. In Ningbo the current regulatory management on gutter oils remains further improvement. The gutter oils’s price is far less than the market price, so food waste treatment companies wouldn’t be willing to supply the feedstock.”
Biodisel Industry Needs Policy’s Support
Jianbing Ji, the head of Energy Engineering Research Center of Zhejiang University of Technology, says, “Food waste oils and oil plants can be used as feedstock of biodisel production, which will not only solve the food waste oil treatment but also yield some economic value and social value.”
Ji adds, “Ningbo City is very suitable to develop biodisel. Every day there is an enormous amount of newly generated food waste, and if the food waste is converted into biodisel, its volume is very considerable. However, how to let those food waste get into the biodisel companies needs effective policy guidance.”
No comments:
Post a Comment