Manufacture and Supplier of Biodiesel Making Machinery ,Bofuels Making Machine in China

Biodiesel Making Machinery ,Bofuels Making Machine

In fact no car built today has such low manufacturing eco-costs as a Series Land Rover. And these old Land Rovers last and last: "My Land Rover is 41 years old and has prevented the need to build at least five replacements during that time." -- Series I owner, England, Land Rover Owners Internet mailing list, December 1999.

Land Rover stopped building the Series models in 1985. (See Project vehicles. See also The best car in the world.) The motor industry now produces 100,000 new vehicles a day worldwide. (See Car facts.)

But our critic had a point: the vehicles were green enough (even the blue one), but their fuel certainly wasn't. But we didn't plan to pollute the atmosphere with dirty fossil-fuel exhaust fumes all the way from Hong Kong to Cape Town. There are better, cleaner, fuels -- and you can make them yourself!

Why make biofuels?

We had three main aims in learning to make biofuels:

• Using renewable fuels for our journey and publicising them
• As a means of improving energy self-reliance in local communities
• As an environmental project for schools participating in Journey to Forever.

Both biodiesel and ethanol are clean, grow-your-own fuels that can be made on-site in villages or local communities from renewable, locally available resources, for the most part using simple equipment that a local workshop can make and maintain.

These fuels are among a wide range of sustainable local energy options. Others are methane (biogas) digesters that turn livestock, crop and food wastes into cooking and heating gas, solar energy (see Solar box cookers), wood gas, charcoal and fuelwood (good fuels unless overharvesting destroys the trees themselves), wind power, water power.

Usually the "answer" is in a mix of technologies. Biofuels can be used to power small-scale farm and local workshop machinery and electricity generators as well as vehicles. Knowing how to make them provides a useful set of ecological questions in investigating local energy options which are worth asking even if the final answer is "No".

For instance, should a crop such as peanuts be used to make fuel, or would the villagers be better off eating the peanuts? Or selling them? Should they press them to produce oil, for cooking or for selling or for fuel, and feed the high-protein seedcake residue to livestock, which in turn they can either eat or sell, while using the livestock wastes (and the crop wastes) to make compost to renew the soil, or to generate biogas for cooking and heating? (The heat generated by the composting process can also be harnessed for heating.) Or should they grow a different crop altogether?

Should a grain crop be distilled to make ethanol fuel or should the villagers eat the grain? If they use the grain for livestock feed, it can be used for ethanol and still feed the livestock: the fermentation process to produce ethanol converts the carbohydrates in the grain while leaving the protein, with the addition of the high-protein yeast that does the fermenting. The residue is high-quality livestock feed, which can be supplemented by forage crops which humans can't eat. This could mean improved utilization of the available resources.

This is the sort of question we'll have to find answers for in our work in rural villages. As always, it will be for the villagers to decide.