All Questions
Tagged with fuel organic-chemistry
17 questions
7
votes
0
answers
321
views
Is a hydrocarbon bio-battery feasible?
Hydrocarbons have some of the highest energy densities and specific energies of any chemical fuel. Unfortunately, our primary use of them is in thermal engines, whose efficiency is limited by Carnot'...
- 263
6
votes
1
answer
188
views
Is it more economical to liquify natural gas to ship overseas or convert it to propane (C3H8) and ship it overseas?
Problem statement: Companies want to frack oil wells and then export natural gas overseas using transport via high pressure pipeline followed by liquefaction at a terminal port.
If the methane ...
- 61
5
votes
1
answer
3k
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Is there a way to turn cellulose into sugar at home?
I know that once you have sugars, you can ferment, distill, and dehydrate to create 95+% ethanol. I've also read about cellulosic ethanol, with the new step there being the breakdown of the cellulose ...
- 1,633
5
votes
0
answers
3k
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Why do branched hydrocarbons burn more efficiently (complete & clean combustion)?
Branched and cycled hydrocarbons usually a higher octane number than their straight chain counterparts. This is due to a more complete and clean (no residue) combustion. In addition, there is no ...
- 213
4
votes
2
answers
525
views
What are the major environmental drawbacks with using methane as a combustable fuel?
What are the biggest environmental issues with using methane, $\ce{CH4}$, (which is found as the major energy source in natural gas, shale gas, biogas, and synthetic natural gas), as a combustible ...
- 141
3
votes
1
answer
684
views
How does tetraethyl lead prevent knocking?
My understanding of knocking is that in a spark ignition engine as the fuel is being compressed it heats up. The heat causes some of the oxygen to break up into oxygen radicals the $\ce{O^.}$ ...
- 149
3
votes
1
answer
4k
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Why do highly branched alkanes have higher octane numbers than their corresponding linear isomer?
The octane number of fuels are based on a set of primary reference fuels, which are mixtures of iso-octane and n-heptane. Now iso-octane being branched alkane has very less tendency to react and given ...
- 141
2
votes
1
answer
4k
views
Why does diesel have a higher energy density than gasoline?
One of the primary reasons why hydrocarbons produce energy is the production of water during the combustion process.
I've been trying to find out why diesel is considered to have a higher energy ...
- 31
2
votes
1
answer
365
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What chemicals can remove or greatly reduce the smell of burning diesel fuel?
I am not a chemist myself but I am trying to solve a practical problem I am experiencing.
I have a nicely working diesel stove but it produces some smell.
I've read that adding urea to the exhaust may ...
2
votes
1
answer
142
views
Biodiesel synthesis
I want to do the synthesis of biodiesel with the cooking oil (it contains colza and sunflower oils) in ethanol and KOH. After 1 hour of reaction, I let the solution to rest for 3 days.
At this stage,...
- 37
1
vote
1
answer
581
views
Can plastic be used as fuel for vehicles? [closed]
I don't have much of a background in chemistry, but I know that plastics are largely made of carbon, as is oil. Is there any way to "covert", i.e. a plastic water bottle, into a substance that can be ...
- 159
1
vote
0
answers
106
views
What Is The Heat Of Combustion Of Diesel And How Do I Find It? [closed]
I need help in finding the heat of combustion of diesel, no where online can i find it, and my chemistry teacher does not know how to find it....
- 11
0
votes
1
answer
51
views
Why do some biofuels have a maximal blending ratio?
ICAO has several conversion processes for sustainable aviation fuel (SAF) with various maximal blending ratios. What would happen if we tried to increase the blending ratio with these processes?
0
votes
1
answer
148
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How do antioxidants work? [closed]
A friend and I are doing a project that involves the process behind manufacturing Jet A-1 and specifically the specifications highlighted in DEF 91-91. I was interested to see the information at the ...
- 3
0
votes
0
answers
26
views
Can we revers the process of plastics to fuel
I am a 10th grade student who is trying to convert plastics into fuel.
My question is that when we can make plastic from oil/fuel then can we revers the process?
But we should be able to revers the ...
- 11
-2
votes
1
answer
1k
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How do i get acetic acid from vinegar?
I'm trying to improve my rocket project, but, since the competition only allows the use of vinegar and sodium bicarbonate as its fuel, I had an idea of using the vinegar in a different way. My plan ...
-4
votes
1
answer
413
views
What can I use as a fuel for an engine with carbon dioxide as the oxidizer?
On Mars carbon dioxide is abundant. It is plausible to utilize a fuel in an engine that can use carbon dioxide as an oxidizer? I know this is a strange inquiry, but could a engine be made to use $\ce{...
- 1