Joke Collection Website - Cold jokes - Is the "oil tree" discovered by scientists that can produce fuel expected to solve the energy crisis?
Is the "oil tree" discovered by scientists that can produce fuel expected to solve the energy crisis?
But decades later, in 1973, with the expansion of human demand for energy, "oil tree" once again became a hot topic for scientists. At that time, American scientists traveled almost all over the world and finally discovered the existence of "oil trees" again. But at this time, the number is not much, and we will continue to look for and study in the future to know more "oil tree" species appear.
What kind of tree is "oil tree"
According to scientists' search, there are actually many kinds of "oil trees". Among them, in Calvin, Brazil, scientists discovered a tree called "Kupeiba", which is comparable to the best in "oil tree". This kind of tree is a kind of tree, which can be up to 30 meters high and 1 meter thick on Long Island. What's even more surprising is that when this tree drills a hole with a diameter of 5 cm in the trunk, it can flow out a substance similar to diesel oil, and the "oil" that flows out in two or three hours can reach one or two liters. Of course, you can also use it directly.
So this tree is very good, but I don't know why, scientists didn't continue this tree, and there was no news later. At present, the most common "oil tree" is jatropha curcas, followed by rubber tree. These trees produce up to 40 liters of fuel per kloc-0/tree, so many countries in the world are planting these trees now. In China, there are a large number of "Jatropha curcas" distributed in Guangdong, Guangxi, Sichuan, Guizhou and other provinces.
These plants are native to tropical America, and we also saw the benefits of this "oil tree", so we cultivated them. Jatropha curcas fruit has an oil content as high as 60%, which can extract biodiesel that is sulfur-free and pollution-free and meets Euro IV emission standards, so it has become a very important energy resource in China, and the scale of planting Jatropha curcas in barren hills and wasteland is not small, so this plant is very popular. Of course, in the same way, you can also use oil directly, so it is also a kind of "oil tree".
"Oil Tree"-How Strong is Jatropha curcas?
First of all, it needs to be explained that the stems, leaves, skins and seeds of Jatropha curcas all contain highly toxic sap, which needs special attention. However, because Jatropha curcas is a species with high oil yield, it is difficult for human beings to choose. However, as the resources of the earth become less and less, human beings have to avoid its disadvantages and plant them. As we said above, the oil content of Jatropha curcas fruit is as high as 60%, and the oil content of its seeds is also 60-80%. According to the planting situation of jatropha curcas per hectare.
It is estimated that 2.7 tons of jatropha oil can be produced, so it can be directly supplied to thousands of households, and jatropha can be regarded as an "energy savior". Of course, this is also the "savior of oil", but today humans have not used the "oil tree" in large quantities, so many people know less. At the same time, in addition to the "oil tree" we have already introduced, there are some similar trees, such as: Euphorbia humifusa, green elm, Xigu coconut, Simmondwood and so on. , all belong to the "oil tree" population, so scientists continue to expand the oil tree species group in order to alleviate energy.
Is the "oil tree" expected to solve the energy crisis?
Indeed, from the perspective of energy, "oil tree" can alleviate the energy crisis, but it is unlikely to completely solve the energy problem. From our brief introduction, we can know that although the oil produced by "oil tree" can be used as a part of edible oil in life, it is similar to "oil product" rather than absolute oil, so it must be treated before it can be used, because the most used oil now is transportation.
At the same time, judging from the 2.7 tons of oil produced by 1 hectare, it is impossible for a large automobile to solve the energy crisis in less than half a year, but it may be alleviated, so it is a kind of "new energy" or "natural" green energy, but the gap in solving the energy crisis is still very large. If the "oil tree" can really solve the energy crisis, then mankind will not start the competition mode because of energy problems now.
abstract
So generally speaking, although there are many kinds of "oil trees", the energy they collectively generate is not very large. Even jatropha curcas with 1 hectare can produce 2.7 tons of oil in a short time, so it is still very small. This is the general situation. To solve the energy crisis, it may be necessary for human beings to start from saving resources and develop some wind energy, solar energy and hydropower. So there is still a certain probability to alleviate the energy crisis, but it is basically impossible to completely solve the energy crisis. The earth's resources will only be used less and less, and the demand will always exceed the renewable capacity.
I am the defender of the beautiful ecological environment, and I am glad to answer your question.
I just wrote an answer a few days ago, that is, how long will the energy of the earth run out? I briefly analyzed all the common energy sources on the earth except direct utilization of solar energy. As a result, if the current consumption rate is followed, the earth's energy will be exhausted in about 200 years. Even if we improve the level of science and technology, improve the efficiency of energy utilization and find some new energy sources, the earth's conventional energy will be exhausted around 1000. Therefore, the pressure of the energy crisis facing our planet is still great.
In recent years, with the development of energy science and biotechnology, people are increasingly aware that there will be broad prospects for us to extract synthetic chemical products and energy from biomass, because the biomass synthesized by plants on the earth is estimated to reach more than 200 billion tons every year. Of course, most of the biomass formed by plant photosynthesis is carbohydrates, which cannot be directly synthesized into oil composed of hydrocarbons. However, after in-depth investigation and experimental research, scientists have discovered many plants that can synthesize hydrocarbons through photosynthesis. The photosynthesis of these plants is very thorough. Some of the oil they throw out can be directly used in diesel vehicles, and some can also be made into diesel oil through some processes. So these plants were named "oil tree" or "diesel tree" by scientists, and no plants that can be used to refine gasoline have been found yet.
Here are some examples of "oil trees".
1, Eucalyptus: Different Eucalyptus has different oil content. At present, there are 20-30 kinds of eucalyptus with high oil content in more than 500 kinds of eucalyptus in the world, such as eucalyptus radiata, eucalyptus maple, eucalyptus shrub, eucalyptus globulus and eucalyptus citriodora. These are the oil contents of eucalyptus leaves and branches. Some scientific research institutions have done experiments, and planting the above eucalyptus varieties with high oil content can produce about 90 liters of "oil" 1 hectare 1 year.
2. Phoebe bournei: This tree species is distributed in Hainan, Guangdong, Guangxi and other places in China. Its wood core contains light brown flammable oily liquid. If the tree grows to more than 10 meter, a hole is cut in the trunk or the branch is broken, the oil will flow out by itself. According to statistics, a mature nanmu can produce more than 6 liters of "diesel oil" a day, which can be directly used by diesel engines after filtration.
Jatropha curcas originated in America, and now it is also distributed in Guangdong, Guangxi and Yunnan-Guizhou regions of China. The part with high oil content is fruit, and the oil content can reach more than 60%. According to the calculation, 1 hectare can generally extract 1.300 liters of biodiesel.
4. Amorpha americana: It is reported that this plant has the highest oil yield in the world. It is native to America and also distributed in southern and southwestern provinces of China. Its oily part is a latex-like substance that flows out. It is estimated that 1 hectare 1 year can produce about 1500 liters of oil.
Compared with traditional fossil energy, biomass energy is cleaner, more environmentally friendly and renewable, showing its unique advantages. At present, countries around the world pay more and more attention to the development and utilization of biomass energy, and the development of biomass energy industry has become a major strategic move of governments around the world. However, restricted by the two major factors of plant photosynthetic efficiency and plant area, if we plant such trees in all places where trees can be planted on the earth at the current rate of oil consumption, it will not meet our needs. Moreover, at present, our biotechnology and molecular chemistry technology can only extract biodiesel from it, and the fuel varieties developed are very single, which also determines that the current "oil tree" can not replace traditional oil.
It is believed that with the continuous attention and increased investment of the country, we will develop and innovate more high-tech biomass, and the industrial development prospects in the biomass field will be broader and broader. In addition, with the increasingly mature utilization of new energy sources such as nuclear energy, solar energy and geothermal energy, the energy crisis on the earth will gradually ease.
With the development of society and the progress of science and technology, the energy problem is becoming more and more prominent. On the one hand, the energy supply is insufficient and the world energy distribution is uneven; On the other hand, the use of fossil energy has emitted a lot of greenhouse gases, which has caused great harm to the environment. Ensuring a country's energy security plays an important role in ensuring its economic development and people's lives. If there is no energy, our cars can't run, our electricity can't be used, and our society can't function normally.
Later, scientists discovered an oil tree that can produce fuel. What is this "oil tree"? Can it become a life-saving straw for human beings to solve energy problems?
Petroleum tree
As early as 1928, American scientists discovered the "oil tree", but at that time, the energy crisis had not yet appeared, the energy demand was still very small, and the concept of using trees as petroleum fuel had not yet formed. So what exactly is an oil tree?
The sap of some plants contains hydrocarbons, that is, the liquid flowing from the bark, trunk, roots and fruits of these plants can be burned, which is what we call oil trees.
Trees themselves contain a lot of carbon, so their branches can be used as firewood. But the biggest difference between oil trees and the trees we see on weekdays is that the oil they produce can be burned. We can get oil without cutting down trees.
1973, Calvin, an American scientist, discovered a tree called "Kupiba" in Brazil. This kind of tree is very tall, it can grow to 30 meters high and its diameter is 1 meter. The most amazing thing about this tree is that it can emit an oily juice, which is close to diesel oil and can be burned directly without any treatment. Not only that, this tree also produces a lot of oil, and it can produce 2-4 kilograms of oil within two hours.
Happily, there are many such oil trees, which are likely to exist widely around us. It is said that in North America, Western Europe and Africa, there is an oily Euphorbia, and the viscous liquid flowing from them is also a fuel similar to petroleum. In addition, there are oil palm trees, oil Phoebe trees and so on.
Scientists have achieved many good results by planting some "oil trees" through experiments, and the results of oil production are very gratifying. It is more environmentally friendly to dig oil directly by planting trees for oil production. Planting trees can not only get fresh air, but also get a lot of "oil", which is quite a bit of a feeling of killing two birds with one stone. Moreover, what we get is more like "renewable fuel".
Can oil trees solve the energy crisis?
From many latitudes, the advantages of developing oil trees outweigh the disadvantages for human beings. But I think it is still difficult to solve the oil problem by oil trees because the output is not large enough. A tree can only get about 2 kilograms of oil an hour. Obtaining these fuels on a large scale is very expensive, which is not necessarily much easier than oil exploration.
In addition, there is another problem: at most, oil trees provide new oil substitutes for human beings, but they are still not clean energy. Even if people try to obtain this renewable energy, they will still produce a lot of greenhouse gases. Most of the oil obtained from oil trees can not be directly used as fuel, and many of them need further processing, so it is difficult to produce on a large scale, which may lead to high fuel cost.
Nevertheless, the emergence of oil trees shows us a possibility to solve energy problems, and there may be many unexpected answers around us. In today's deteriorating ecological environment and climate environment, we should not only ensure the normal supply of energy, but also choose to use clean energy and use clean energy.
Summary:
The energy problem is the most important problem faced by mankind since the 20th century, and solving the energy problem is of great significance to the long-term development of mankind. Scientists discovered this oil tree as early as the 1970s. The sap of this tree has the characteristics of petroleum and diesel oil. Although it is renewable, it is difficult to produce on a large scale, and it will also produce a lot of greenhouse gases.
Do you think oil trees are valuable? Can you solve the energy problem?
Don't think about it. Develop magnetism. Everything was solved during the development.
Oil tree oil is a kind of hydrocarbon, which is transformed from ancient organisms. Underground or seabed oil is the remains of organisms deposited underground millions of years ago. Under the action of microorganisms, it decays and is formed by pressure and heating under the cover of sediments. The oil thus formed comes too slowly and in limited quantities. As early as 1928, when American scientist Edison was studying rubber trees, he found that the juices of several plants contained hydrocarbons. The liquid flowing from the bark, trunk, roots, leaves and fruits of these plants can be burned. Before scientists came to study them, the juice of some plants was used as fuel by local people. Unfortunately, there was no energy crisis at that time, and people were not interested in using plants to produce fuel, so they didn't pay attention.
Oil tree is only heard of, but not seen. What is the output of oil trees? The total output is not much. This is just a joke.
In real life, methanol and ethanol can already partially replace oil! From a technical point of view, organic matter can be synthesized into gasoline, depending on economic feasibility!
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