Re: [DIYbio] free food

Hi Yunfan

Although an interesting project I don't see small scale production of ammonia playing a large role in alleviating malnutrition.

The link you give for generating liquid nitrogen requires a source of pure nitrogen, it does not produce by itself pure nitrogen. Liquefaction and distillation can be used to purify nitrogen but at small scale pressure swing adsorption is more commonly used - https://en.wikipedia.org/wiki/Pressure_swing_adsorption

The pressures you are talking about are dangerous. It does not matter that compressors are available that can achieve such high pressures. Careful thought must be given to the choice of materials, wall thickness, couplings etc. Add in the high temperatures and the exothermic reaction and you risk a quite spectacular explosion.

There are better ways to increase food production. Many of them will be far safer and better leverage the experience of those on this mailing list.

On 13 January 2015 at 21:40, Yunfan Jiang <jyf1987@gmail.com> wrote:

i googled and 1 psi = 6894 pa

so 3700 psi = 3700 * 6894 = 25 507 800 Pa = 25.5 MPa

to Simon:

if you dont do liquefying process, how can you got pure nitrogen ? although there is almost 80% of air is nitrogen gas, you still can promise its safe when you use air instead of pure nitrogen gas in haber process

2015-01-14 10:11 GMT+08:00 Matthew Bertram <bertram.matthew@gmail.com>:

Only 25 MPa?!?!? This is about 3700psi. I assure you that is a lot of pressure for any DIY project.

On Jan 13, 2015 6:03 PM, "Yunfan Jiang" <jyf1987@gmail.com> wrote:

yes, haber process is what i talk, and according to wikipedia (http://en.wikipedia.org/wiki/Haber_process), it only require about 15-25MPa, in my location(china), many cheap air compressors could stand with that, so its not that dangerous if you dont need factory producting rate. the only dangerous thing is the product itself .

2015-01-14 5:09 GMT+08:00 Sebastian Cocioba <scocioba@gmail.com>:

I guess the haber process using electrolysis to produce the hydrogen needed. Seems very dangerous to store on a larger scale. The temperature and pressure would be a bit of an issue since that sounds more like a terrible accident waiting to happen. DIY liquid nitrogen would be nice for snap freezing and freeze drying stuffs, tho.

On Tue, Jan 13, 2015 at 3:30 PM, Simon Quellen Field <sfield@scitoys.com> wrote:

How do you plan to get nitrate fertilizer from liquid nitrogen?

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On Mon, Jan 12, 2015 at 6:28 PM, Yunfan Jiang <jyf1987@gmail.com> wrote:

i think its the central enegy supplyment which limit the food distribution

people doing self-efficient farming for thousand years, then why its big farm is so popular today? because of the big farm could rise producting rate by using chemical fertilizer and farm machine

these elements can not be producted by a self-efficient farm itself which forced them to join the market, and market love high profit, so finally big farm became popular.

i think a self-own power station could solve this, especially when the power come from sunlight directly

for eg, you could made liquid nitrogen at home by using simple machines (such as air compressor)  ,the most cost is the power, if you have your own free power supply(via your solar station or other types) , you then got 

almost free(or very cheap) nitrogen fertilizer. check this link(http://www.instructables.com/id/Homemade-liquid-nitrogen-generator/) for home made liquid nitrogen

and you could use mushroom to producting plastic for daily use materials

BTW, please search this "Enzymatic transformation of nonfood biomass to starch"

2015-01-13 0:08 GMT+08:00 <scocioba@gmail.com>:

I think the issue is more of food distribution and infrastructure rather than an overall lack of food. Most developed nations could even be considered as having too much food. Think of how much food is wasted each day from the restaurant industry each day. Now think of how the hell we could possibly ship said food to people in need around the world without spoilage. Giving people free food rather than free land and farming equipment, government support, and education isn't the best idea. It will solve the acute symptoms but not the chronic situation.



Sebastian S. Cocioba
CEO & Founder
New York Botanics, LLC
Plant Biotech R&D

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From: christophe malvasio
Sent: ‎1/‎12/‎2015 10:15 AM
To: diybio@googlegroups.com
Subject: [DIYbio] free food

hi all
many peoples on our planet don't have enough food
many projects to give peoples free food had been rejected by those peoples
for example algae rejected cause the growing process was done with recycle ...
so is there a way that a common project for every one here can born to give free food for poor peoples ?
thanks 

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