Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×
 


Reply
 
Thread Tools Display Modes
 
Old 03-15-2008, 05:59 PM   #11
Member
 
Join Date: Sep 2007
Posts: 91
Truly environmentally better??

I have read with ethanol, that in the US it is not a net environmental plus because of the energy that has to be consumed to create the ethanol (this is not true, apparently, of ethanol made in Brazil because processing sugar cane is more efficient than processing corn, as we do in the US). I was wondering if the value of Biodiesel offsets the environmental costs of creating it.
__________________

diver110 is offline   Reply With Quote
Old 03-15-2008, 09:51 PM   #12
Site Team
 
BroncoHauler's Avatar
 
Join Date: May 2007
Location: Southern New Mexico
Posts: 9,799
Depends on the source of the biodiesel. If it's a result of growing soy beans or some other organic oil source just for biodiesel, it's not an energy saver. It is however better for your diesel engine. If the source of the biodiesel is recycled organic oil (e.g. cooking oil), I think there is an energy savings.

The subsidies (spelling?) to make ethanol have driven up the price of corn and consequently pork. Hmmm, pork ... as in Congressional add-ins?


Herb
__________________

__________________
SMB-less as of 02/04/2012. Our savings account is richer, but our adventures are poorer.
BroncoHauler is offline   Reply With Quote
Old 03-16-2008, 10:36 AM   #13
Member
 
windom's Avatar
 
Join Date: Mar 2008
Location: Durango, CO
Posts: 30
biodiesel isn't ethanol!

Quote:
Depends on the source of the biodiesel. If it's a result of growing soy beans or some other organic oil source just for biodiesel, it's not an energy saver.
Not true (although there are other issues involved). While corn-based ethanol barely justifies the energy use (for every unit of energy used to produce it, 1.2-1.8 units are created), plant-based biodiesel is a lot more efficient with an energy return ratio of 3.2. Also, since growing the source crop captures CO2, biodiesel is almost carbon neutral (almost, because 10% of raw input is methanol).

The other issues include the very real problems of replacement of food crop acreage with fuel crop acreage, and energy used to work the fields. This varies with the type of crop.

Disclaimer: I'm an investor in and a staff member of San Juan BioEnergy which is a biodiesel startup in Dove Creek, Colorado. We have just begun building our plant, which will crush locally grown sunflower seeds into oil; the majority of this will be sold as food oil, but some of it, along with recaptured cooking oil, will be made into biodiesel. Sunflowers grow well in this high desert without irrigation or other intensive farming practices, and are a good rotation crop for wheat and beans, which are the traditional crops grown here in SW Colorado.

I would be happy to answer questions or discuss biodiesel! In fact, we bought a diesel-engine Sportsmobile (last week :-) with an eye to running off biodiesel - figure we'll put our money where our mouth is, so to speak.
__________________
2001 EB E350 4x4 Diesel, new to us March 2008
windom is offline   Reply With Quote
Old 03-16-2008, 11:53 AM   #14
Site Team
 
BroncoHauler's Avatar
 
Join Date: May 2007
Location: Southern New Mexico
Posts: 9,799
Re: biodiesel isn't ethanol!

Quote:
Originally Posted by windom
Quote:
Depends on the source of the biodiesel. If it's a result of growing soy beans or some other organic oil source just for biodiesel, it's not an energy saver.
Not true (although there are other issues involved). While corn-based ethanol barely justifies the energy use (for every unit of energy used to produce it, 1.2-1.8 units are created), plant-based biodiesel is a lot more efficient with an energy return ratio of 3.2. Also, since growing the source crop captures CO2, biodiesel is almost carbon neutral (almost, because 10% of raw input is methanol).

The other issues include the very real problems of replacement of food crop acreage with fuel crop acreage, and energy used to work the fields. This varies with the type of crop.

Disclaimer: I'm an investor in and a staff member of San Juan BioEnergy which is a biodiesel startup in Dove Creek, Colorado. We have just begun building our plant, which will crush locally grown sunflower seeds into oil; the majority of this will be sold as food oil, but some of it, along with recaptured cooking oil, will be made into biodiesel. Sunflowers grow well in this high desert without irrigation or other intensive farming practices, and are a good rotation crop for wheat and beans, which are the traditional crops grown here in SW Colorado.

I would be happy to answer questions or discuss biodiesel! In fact, we bought a diesel-engine Sportsmobile (last week :-) with an eye to running off biodiesel - figure we'll put our money where our mouth is, so to speak.
Yep, blew that one. Guess I was talking out of my ass. Methane injection for diesels? Sorry, that's a whole other topic.


Herb
__________________
SMB-less as of 02/04/2012. Our savings account is richer, but our adventures are poorer.
BroncoHauler is offline   Reply With Quote
Old 03-16-2008, 12:29 PM   #15
Member
 
windom's Avatar
 
Join Date: Mar 2008
Location: Durango, CO
Posts: 30
Hee, well, we are looking at using methane digesters to create fairly carbon-neutral methanol for biodiesel production. So perhaps one day talking out your ass will power your Sportsmobile!
__________________

__________________
2001 EB E350 4x4 Diesel, new to us March 2008
windom is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Sportsmobile Registry

Jnlola

jnlola

MoMo

skyrat
Add your Sportsmobile
Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Sportsmobile SIP or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 12:58 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
×