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Showing posts with label Energy. Show all posts
Showing posts with label Energy. Show all posts

Tuesday, September 8, 2015

Interconnected Carbon Nanosheets Derived from Hemp for Ultrafast Supercapacitors with High Energy



This is where I'm headed with the MOhemp Energy inventions: Hemp Batteries, Supercapacitors, Hemp Lignin, Energy Storage, etc

Abstract copied from: http://pubs.acs.org/doi/ipdf/10.1021/nn400731g

Abstract Image
We created unique interconnected partially graphitic carbon nanosheets (10–30 nm in thickness) with high specific surface area (up to 2287 m2 g–1), significant volume fraction of mesoporosity (up to 58%), and good electrical conductivity (211–226 S m–1) from hemp bast fiber. The nanosheets are ideally suited for low (down to 0 °C) through high (100 °C) temperature ionic-liquid-based supercapacitor applications: At 0 °C and a current density of 10 A g–1, the electrode maintains a remarkable capacitance of 106 F g–1. At 20, 60, and 100 °C and an extreme current density of 100 A g–1, there is excellent capacitance retention (72–92%) with the specific capacitances being 113, 144, and 142 F g–1, respectively. These characteristics favorably place the materials on a Ragone chart providing among the best power–energy characteristics (on an active mass normalized basis) ever reported for an electrochemical capacitor: At a very high power density of 20 kW kg–1 and 20, 60, and 100 °C, the energy densities are 19, 34, and 40 Wh kg–1, respectively. Moreover the assembled supercapacitor device yields a maximum energy density of 12 Wh kg–1, which is higher than that of commercially available supercapacitors. By taking advantage of the complex multilayered structure of a hemp bast fiber precursor, such exquisite carbons were able to be achieved by simple hydrothermal carbonization combined with activation. This novel precursor-synthesis route presents a great potential for facile large-scale production of high-performance carbons for a variety of diverse applications including energy storage.



Huanlei WangZhanwei XuAlireza KohandehghanZhi Li*Kai Cui,Xuehai TanTyler James StephensonCecil K. King’onduChris M. B. HoltBrian C. OlsenJin Kwon Tak§Don Harfield§Anthony O. Anyia§, andDavid Mitlin*

 Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 2 V4, Canada
 National Institute for Nanotechnology (NINT), National Research Council of Canada, Edmonton, Alberta T6G 2M9, Canada
§ Bioresource Technologies, Alberta Innovates-Technology Futures, Vegreville, Alberta, T9C 1T4, Canada
ACS Nano20137 (6), pp 5131–5141
DOI: 10.1021/nn400731g
Publication Date (Web): May 7, 2013
Copyright © 2013 American Chemical Society
*Address correspondence to lizhicn@gmail.comdmitlin@ualberta.ca.

Friday, July 3, 2015

Mobile Biodiesel Production Page 36



Biodiesel Processor (450 Gallons Per Day) $10,952.80
MOhemp Mobile Hemp Processing System


Biomass Pellet Machine Example Page 31


Biomass Pellet Machine turns the Hemp Stalk into fiber pellets-replacement for coal and wood.

Power: 30HP Diesel, 2 Cylinder Self Contained / Radiator with Fan / Electric Start
Weight: 1,350 lbs.
Production Capacity: Up to 1,000 Lbs. Per Hour
Dimensions: 72"long X 30" wide X 59" high with the muffler and 38" high without the muffler
Fuel Usage: Approximately 1 US gallon Per Hour
Material Use: All Biomass Products
Price: $10,500.00

Hemp Biomass Pellet Machine 



Wednesday, July 1, 2015

MOhemp Energy will be poised to help the state become Energy Efficient Page 25



Hemp Biodiesel Image #TN4Hemp


Hemp Building & Insulation image: Hemp Technologies




Missouri Governor Nixon Announces State Clean Power Plan Page 24



Over the past five years, Gov. Nixon has made clean, reliable, affordable and abundant energy a priority of his administration. Missouri state agencies have reduced energy use by more than 22 percent since the Governor signed an executive order in 2009 directing agencies to reduce their energy use by two percent each year. The Governor also signed the Energy Efficiency Investment Act to give investor-owned utilities an incentive to implement energy efficiency programs, which protect the environment and hold down costs for consumers.

In 2010, the Governor's Strategic Initiative for Economic Growth identified "Energy Solutions" as one of seven target industries with the highest potential for creating jobs and spurring economic growth. Last year, in recognition of energy's unique and growing importance to the state's economy, Gov. Nixon issued an executive order realigning the Division of Energy from the Department of Natural Resources to the Department of Economic Development, which the General Assembly approved.
http://blog.stlouisrenewableenergy.com/2015/05/missouri-ranks-6th-from-bottom.html & https://www.youtube.com/watch?v=-KfEAbcTwmM#action=share


Green and Sustainable Building Trends Page 22



1) Green building. Demand is finally coming back in the construction industry, and it’s coming back green. By 2016, more than half of all commercial and institutional construction will be environmentally sustainable, energy efficient or both. Green residential projects are on the rise as well. Abundant government subsidies and tax cuts for green building doesn’t hurt, either. IBISWorld projects 23% annual growth in the green building industry through 2016.

2) The US Green Building Council Colorado chapter predicts the following green building trends for 2015: Green construction powers industry:As a panel of developers and owners told us at our Commercial Real Estate Forum, green buildings are becoming a must-have for owners,” said Sharon Alton, executive director, USGBC Colorado.

3)I recently heard a powerful statistic presented by a guest speaker at Greenbuild 2013 in Philadelphia. Stuart Kaplow, an attorney and green building practitioner, said that over the last seven years, non-residential green building construction has grown from 1.4% to 44% of the construction market. He reminded the audience this represents a 3200% increase. So is green big? You bet it is. It continues to grow and it is the way most product manufacturers are using to reach out to designers.


Hemp Plant Biomass Energy Value Page 19



Biofuel Energy, January 2012-There’s a New Biofuel Crop in Town Work by Agricultural Research Service scientists in Florence, South Carolina, suggests that farmers in the Southeast could use the tropical legume sunn hemp (Crotalaria juncea) in their crop rotations by harvesting the fast-growing annual for biofuel. In 2004, when there was ample rainfall, the resulting sunn hemp biomass yield exceeded 4.5 tons per acre. This is equivalent to 82.4 gigajoules of energy per acre—close to the energy contained in 620 gallons of gasoline and well in the ballpark of other bioenergy crops, which have yields of anywhere from 30 to 150 gigajoules per acre. The higher heating value of sunn hemp biomass exceeded that of switchgrass, Bermudagrass, reed canarygrass, and alfalfa. And although reduced rainfall resulted in lower hemp biomass yields in 2006, sunn hemp’s higher heating value for both study years was 4 to 5 percent greater than that of cowpea.



Monday, June 29, 2015

IndustrialHemp Methane Energy Yield Harvest Times

Article

Anaerobic digestion of industrial hemp–Effect of harvest time on methane energy yield per hectare

Biomass and Bioenergy (Impact Factor: 3.41). 02/2011; 35(2):893-900. DOI: 10.1016/j.biombioe.2010.11.005

ABSTRACT There is a worldwide emphasis to increase the share of renewable transportation fuels. When using agricultural land for production of renewable transportation fuels, the energy output per hectare for different crops and transportation fuels is a crucial factor. In this study, the gross methane energy yield per hectare from anaerobic digestion of industrial hemp (Cannabis sativa L.), was determined at four different harvest times between July and October in Southern Sweden, a cold climate region. The biomass yield was determined for three years and the methane yield was determined for two years through the biochemical methane potential test.

  • The highest biomass yield, 16 tonnes dry matter per hectare on an average, and the highest methane energy yield per hectare was achieved when the hemp was harvested in September or October, with an average gross methane energy yield of 136 ± 24 GJ per hectare. 
  • There was no significant difference in the specific methane yield between the harvest times; the average being 234 ± 35 m3 per tonne volatile solids. 
  • Biogas from hemp turned out to be a high yielding alternative to the currently dominating renewable transportation fuels produced from crops grown in Sweden: ethanol from wheat and biodiesel from rapeseed.

Anaerobic digestion of industrial hemp–Effect of harvest time on methane energy yield per hectare (PDF Download Available). Available from: http://www.researchgate.net/publication/251628713_Anaerobic_digestion_of_industrial_hempEffect_of_harvest_time_on_methane_energy_yield_per_hectare [accessed Jun 29, 2015].

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