Welcome to the Energy Blog


  • The Energy Blog is where all topics relating to The Energy Revolution are presented. Increasingly, expensive oil, coal and global warming are causing an energy revolution by requiring fossil fuels to be supplemented by alternative energy sources and by requiring changes in lifestyle. Please contact me with your comments and questions. Further Information about me can be found HERE.

    Jim


  • SUBSCRIBE TO THE ENERGY BLOG BY EMAIL

After Gutenberg

Clean Break

The Oil Drum

Statistics

Blog powered by Typepad

« Are Super Efficient Buidings Justified? | Main | Sharp Expands Solar Cell Production »

October 31, 2006

TrackBack

TrackBack URL for this entry:
http://www.typepad.com/services/trackback/6a00d83451b5da69e200d834c3b4bd53ef

Listed below are links to weblogs that reference Dynamotive Breaks Ground for MegaCity Plant:

Comments

amazingdrx

Maybe the poet had something there with pyrolysis. This oxygen free system looks great.

The heat for pyrolysis could be provided from solar furnace/wind electric and the char used in a solid oxide fuel cell turbine system. This would provide for offpeak and high solar/wind output time period fuel processing, storing renewable energy in the form of biodiesel and char.

Then when grid backup is needed in low wind/solar power periods and high peak use the char is fed through the fuel cell/turbine. All emissions can go back into a solar collector/algae system to produce more algae biomass for pyrolysis refining.

Biodiesel and electrical grid backup, and a biogas digestor could produce backup fuel from waste that would also run fine in the fuel cell/turbine.

Coal would be obsolete in no time at all given mass production of these systems. Give american workers a chance at this taxpayers. they can win this peaceful battle over energy and end oil wars forever.

Harvey D.

This seems to be an efficient way to convert biomass + wastes into other forms of energy, including bio-oil.

What is the total energy efficiency of this type of transformation?

Can the process be fully operated on the energy produced? If so, how much energy is left?

Can bio-oil low heating energy (40%) be increased to a level similar to fossil diesel fuel with ethanol or buthanol? If so, how much would it take?.

What would be the impact on CO2 emmisions from engines using bio-oil versus fossil diesel fuel considering that about 2.5 times more bio-oil has to be used?

Engineer-Poet

If you are looking for better info on bio-oil, read this paper.

The energy value of bio-oil is roughly the same as that of dry biomass, so as a first guess the energy efficiency would be around 70%; the gas and perhaps some or all of the char would have to be burned to power the process.  It's largely composed of small organic molecules like acids (look at the pH!) and it's not stable over time.

Perhaps the chemists know ways to extract lots of valuable substances from such a brew, but I'm not a chemist.  What I do understand is that bio-oil is not miscible with petroleum diesel or fuel oil, would probably corrode fuel-system components and isn't easily substituted for either one.  Upgrading would require extracting the water and converting small molecules to straight hydrocarbons; maybe thermochemical conversion can do it, but it would be another step.

I think this sort of scheme is a good first step, but the major product (bio-oil) isn't very good for anything except maybe chemical synthesis.  Aside from turning waste into sterile and useful products, its biggest virtue is that it's easy to transport (though I've seen no word on how it smells).  My favorite scheme is still pyrolysis to charcoal and gas (no liquids), with the gas going to uses like SOFC's and the charcoal being used as either fuel for DCFC's (after de-ashing) or a carbon-sequestering soil amendment.  The charcoal scheme might still use some bio-oil, though; if powdered charcoal was wetted slightly and squeezed through a heated die, the pyrolysis of the bio-oil would help sinter the charcoal into pellets for easier handling.

ティファニー 激安

tiffany & coスウォッチ グループ ジャパンはこのほど、東京?銀座のニコラス?G?ハイエック センター内に「ティファニー ウォッチ ショールーム」をオープンした。男性向けの「アトラス ジェント スクエア クロノグラフ」、女性向けの「ティファニー ジェメア」をはじめ、希少性の高いアイテムも展示、販売される。Tiffany Rings
国内初のティファニー ウォッチ専門店となる同ショールームには、新作ウォッチがいち早く店頭に並ぶだけでなく、さまざまなフェアやイベントも開催される予定となっている。時計の専門知識を持つスタッフにより、利用客の要望にもきめ細かく対応するという。ティファニー 激安
同ショールームでも販売される「アトラス ジェント スクエア クロノグラフ」は、最高のムーブメントとして広く認められるフレデリック?ピゲ製自動巻キャリバー1285を搭載。さらに頑丈な40mmのステンレス スティール ケースとスポーティなデザインにより、毅然とした男の魅力を演出している。Tiffany ネックレス
「ティファニー ジェメア」は、18カラットのホワイトゴールドで作られた樽型のケースが特徴で、たくさんのダイヤモンドを散りばめた宝飾時計に仕上がっている。ダイヤモンド1列のモデルとダイヤモンド2列のモデルのほかに、時計の表面に610個のダイヤモンド(3.12カラット)を敷き詰めたフルパヴェのモデルも用意。Tiffany locksこれらの3モデルを、直径22mm / 18mmの2パターンで展開する。ティファニー
その他、ショールームのオープンを記念し、日本初登場となる「ステートメント ウォッチ」「5thアヴェニュー ウォッチ」なども特別展示されるティファニー
アメリカを代表する世界のプレミア?ジュエラー、ティファニーは1837年の創設以来、時を越えて多くの人々を魅了してきた。ティファニーのジュエリー、シルバー、ウォッチ、そのデザインの数々は何世代にもわたって世界中で愛され続けている。ティファニー 通販

iPhone 4 ケース

The energy value of bio-oil is roughly the same as that of dry biomass, so as a first guess the energy efficiency would be around 70%; the gas and perhaps some or all of the char would have to be burned to power the process. It's largely composed of small organic molecules like acids (look at the pH!) and it's not stable over time.

The comments to this entry are closed.

. .




Batteries/Hybrid Vehicles