DuPont Recruits 500 Farmers for Non-Food Biofuel Project
Next year DuPont plans to complete one of the first and biggest commercial-scale cellulosic biorefineries in the world, which will make biofuel from corn stalks and leaves at this Nevada, Iowa construction site. (Source: DuPont)
I am sure your cost argument is valid but I wonder how much of that argument comes from a culture that is entrenched in how things have always been done and doesn't want to branch out and make the effort to do something new with the waste. I suppose it will take efforts like DuPont's (which I applaud, by the way) to see how this can be both environmentally and financially sound for all parties involved. Maybe you're right and it's policy that will change things and support this so it benefits the farmers as well.
Ann, don't get me wrong, but I still have to wonder about the economics of this. After one of your previous articles I was down on a farm here in Illinois. I asked the fatmer about it. He had significant corn stubble left in his fields. He was aware of the opportunity, but pointed out that he would have to bundle the stalks for them to be used. The indication was that it was not worth the cost. Costs include fuel, equipment wear and farmer time (and wear).
Getting the most from a raw material is very attractive from a social and environmental point of view. The problem comes in the economics. There was a recent article I saw about ethanol producers trying to get more out of the corn by developing secondary products. One was a protien that could be used to make plastics. So, even using the "leftovers" from a process, it turns out that it is cheaper to petroleum based products for the same purpose. These are the kind of engineering trade studies I have seen in a myriad of businesses.
It may take tax and environmental policies to tip the scales.
As the 3D printing and overall additive manufacturing ecosystem grows, standards and guidelines from standards bodies and government organizations are increasing. Multiple players with multiple needs are also driving the role of 3DP and AM as enabling technologies for distributed manufacturing.
A growing though not-so-obvious role for 3D printing, 4D printing, and overall additive manufacturing is their use in fabricating new materials and enabling new or improved manufacturing and assembly processes. Individual engineers, OEMs, university labs, and others are reinventing the technology to suit their own needs.
For vehicles to meet the 2025 Corporate Average Fuel Economy (CAFE) standards, three things must happen: customers must look beyond the data sheet and engage materials supplier earlier, and new integrated multi-materials are needed to make step-change improvements.
3D printing, 4D printing, and various types of additive manufacturing (AM) will get even bigger in 2015. We're not talking about consumer use, which gets most of the attention, but processes and technologies that will affect how design engineers design products and how manufacturing engineers make them. For now, the biggest industries are still aerospace and medical, while automotive and architecture continue to grow.
More and more -- that's what we'll see from plastics and composites in 2015, more types of plastics and more ways they can be used. Two of the fastest-growing uses will be automotive parts, plus medical implants and devices. New types of plastics will include biodegradable materials, plastics that can be easily recycled, and some that do both.
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