Download Algae Energy (Challenges and Efforts) PowerPoint Presentation

Iframe embed code :

Unable to generate embed code for this presentation.request for embed code @ mail[at]slidesfinder.com

Presentation url :

Home / Science & Technology / Science & Technology Presentations / Algae Energy (Challenges and Efforts) PowerPoint Presentation

Algae Energy (Challenges and Efforts) PowerPoint Presentation

PowerPoint is the world's most popular presentation software which can let you create professional Algae Energy (Challenges and Efforts) powerpoint presentation easily and in no time. This helps you give your presentation on Algae Energy (Challenges and Efforts) in a conference, a school lecture, a business proposal, in a webinar and business and professional representations.

The uploader spent his/her valuable time to create this Algae Energy (Challenges and Efforts) powerpoint presentation slides, to share his/her useful content with the world. This ppt presentation uploaded by worldwideweb in Science & Technology ppt presentation category is available for free download,and can be used according to your industries like finance, marketing, education, health and many more.

About This Presentation

worldwideweb

Description : Algae Energy (Challenges and Efforts) Presentation : Download Algae Energy (Challenges and Efforts) ppt presentation and make your presenation attractive

Tags : Algae Energy (Challenges and Efforts)

Published on : Dec 09, 2014
Views : 1289 | Downloads : 0

Download Now

Share on Social Media

Slide 1 -

Algae Energy - Challenges & Efforts Narasimhan Santhanam, Oilgae Presentation in Oct, 2008, Texas, USA

Slide 2 -

How difficult is it to achieve the energy Holy Grail?

Slide 3 -

Contents For each of the various aspects of algal energy Problems present Efforts & solutions

Slide 4 -

Aspects Considered End products Strains Oil yields GMOs Methods to grow algae Choice of cultivation plant Problems in cultivation Open pond systems Photobioreactors Harvesting Extraction Transesterification Energy input/output Land requirements Scaling up Quality of biodiesel

Slide 5 -

End Products Biodiesel Ethanol Hydrogen Methane Biomass

Slide 6 -

Biodiesel Greenfuel - recycled CO2 Solazyme - fermentation Blue Marble - polluted water systems Inventure - algae-jet-fuel Aquaflow - algae in sewage Aurora - GM algae Solix - CO2 from breweries

Slide 7 -

Biodiesel - continued Seambiotic - CO2 from powerplants Cellena

Slide 8 -

Ethanol Ethanol from GM cyanobacteria (Univ of Hawaii) Algodyne - algae PBR that can produce multiple end products (fuels), including ethanol Algenol - “algae produce ethanol in the gas form”

Slide 9 -

Hydrogen Using hydrogenase enzymes (triggered by sulphur deprivation) - biophotolysis Using Cu to block oxygen generation Manipulating genes that control the amount of chlorophyll DIY Algae Hydrogen Kit - Amy Franceschini & Jonathan Meuser - biophotolysis

Slide 10 -

Methane Methane production by pyrolysis (Wu et al, 1999) - direct pyrolysis of marine nanoplankton

Slide 11 -

Biomass “Under favourable conditions, some algae strains have produced over 180 T / ha /yr of biomass” Solena - Uses high temperatures to gasify algae.

Slide 12 -

Strains NREL’s ASP did not specify any one species as the best, though they concluded diatoms and green algae were promising Microalgae or macroalgae? Blue Marble - wild algae blooms Solazyme - Dunaliella species C. reinhardtii - sulphur deprived to produce hydrogen

Slide 13 -

Strains Others: Neochloris oleoabundans Scenedesmus dimorphus Euglena gracilis Prymnesium parvum Phaedactylum carterae Tetraselmius chui Tetraselmius suecica Isochrysis galbana Nannochloropsis salina Botryococcus braunii

Slide 14 -

Oil Yield Increasing oil yield by: Nutrient deprivation - Sulphur & Nitrogen deprivation Silicon depletion ACCase gene placed to increase fatty acid

Slide 15 -

GMO PetroAlgae - Environmentally-friendly algae Solazyme - Optimizing biochemical pathways for hydrocarbon production

Slide 16 -

Photosynthesis or Fermentation? Photosynthesis - many companies Fermentation - Solazyme FAO - “direct extraction of lipids appears to be a more efficient method for obtaining energy, than fermentation”

Slide 17 -

Choice of Plant Single or multi-purpose Multi-purpose Combined with power plants Combined with wastewater treatments and sewage Greenfuel - power plants Aquaflow - sewage Inventure - power plants?

Slide 18 -

Cultivation Problems Formulation of Medium Calcium, Magnesium can cause precipitation problems Water might require conditioning Montana Micronutrient Booster - GSPI

Slide 19 -

Cultivation Problems Provision of CO2 CO2 could cover a large part of operating costs Covered area carbonators - bubble covers In-pond carbonation sumps Recycling of non-lipid carbon from extraction residues

Slide 20 -

Cultivation Problems Water Circulation Paddle wheels Airlift pump Archimedes screw pump Gas lift mixing

Slide 21 -

Problems in Open Pond Light penetration Circulate algae using paddle wheels Placing the light in the system - submerged into the tank Passive optical system - Bionavitas

Slide 22 -

Problems in Open Pond Odour related problems Result mainly owing to lack of oxygen Planned cultivation and harvesting should take care of this

Slide 23 -

Problems in Open Pond Contamination, temperature, pH & salinity fluctations Owing to: Temperature & light variances Infiltration from local algae Evaporation, dust particles, rain. Solution Hybrid algae product system - cross between open and closed pond systems - GSPI Combo of open pond and PBR - Enhanced Biofuels & Technologies

Slide 24 -

Photobioreactor Problems Choice of PBR Dynamic Biogenics develops low-cost, scalable bioreactors Solix B iofuels - “Massively scalable PBRs” Texas Clean Fuels - optimized for CO2 sequestration and biofuel feedstock production Valcent - vertical bioreactor

Slide 25 -

Photobioreactor Problems Choice of PBR Origin Oil - Helix bioreactor Academic & Univ Centre in Nove Hrady - Czech Republic - Penthouse PBR using solar concentrators with linear fresnel lenses

Slide 26 -

Photobioreactor Problems Cost of PBR DEC Simgae system - simple, benefits of both & closed systems

Slide 27 -

Harvesting Method of Harvesting Besides simple sedimentation, all other methods are expensive The “expensive” methods - straining, filtering, flocculation Cost-effective (?) methods Induced bio-flocculation followed by sedimentation or flotation AlgoDyne Ethanol Energy - new process to harvest biomass from marine algal blooms

Slide 28 -

Harvesting Long harvesting period GreenFuel - harvests algae daily Advanced Biofuel Technologies - Over-expression of ACCase leads to overproduction of triglycerides

Slide 29 -

Harvesting Long harvesting period GreenFuel - harvests algae daily Advanced Biofuel Technologies - Over-expression of ACCase leads to overproduction of triglycerides

Slide 30 -

Harvesting Time of Harvesting Ability to determine the right time to extract oil from feedstock is critical Current methods to determine these are expensive, time consuming and unreliable BioGauge “bio-profiling” technology - from International Energy Inc.

Slide 31 -

Harvesting Harvesting Cost Aquaflow - developed a scalable method for harvesting algae in the wild

Slide 32 -

Extraction Choice of extraction Primary Expeller Solvent Extraction Super critical fluid extraction Less well-known Enzymatic extraction Osmotic shock Ultrasonic assisted extraction Soxhlet extraction

Slide 33 -

Extraction Cost of extraction Numbers quoted are quite high - what are the real numbers? Energy requirements OriginOil’s new method to extract oil without resorting to chemical solvents, using a process called lysing, built on their patented method of “Quantum Fracturing”

Slide 34 -

Transesterification High FFA could create transesterification problems Basu & Norris (2005) have developed a process to produce esters from feedstock that have a high FFA content using calcium and barium acetate as a catalyst. SRS Biodiesel - FSP-Series Acid Esterification pretreatment system for high-FFA feedstock

Slide 35 -

Energy Input & Output Best-case - Macro-algae can generate 11000 MJ/dry algae & micro-algae 9500 MJ/T. Solena’s plasma gasification tech consumes less than 1/4 of the energy it produces

Slide 36 -

Land Requirements Growing algae on solid carriers in ocean - Kansas State Univ. - Jun 2008 Nutrients for algae in sea water - algae grew much faster when supplied with dust from a desert Valcent’s Vertigro uses area above a plot of land. Algae grown in sewage ponds - Aquaflow Bionomic

Slide 37 -

Scaling Up When transferred to outdoor test facility, growth rate, % oil yield decreased dramatically from those from laboratory results (NREL) (biodiesel produced per acre in OTF was just 10% of that produced in lab)

Slide 38 -

Algae Biodiesel Quality Not enough data High FFA content Solazyme tests algae biodiesel that has superior performance under cold weather conditions (algae engineered to produce an oil with optimized fatty acid profile) One way of bridging quality gaps is to blend biodiesel from different feedstocks?

Slide 39 -

Conclusion We are still not yet there, but the clarity about the problems we face and the diversity of solutions being attempted make the goal look more reachable than ever before.

Slide 40 -

Thank You

Frequently Asked Questions

> About SlidesFinder?

Slidesfinder is a website that allows users to upload and share their PowerPoint presentations online. It provides a platform for individuals and businesses to share their ideas and knowledge through presentations, and for others to view and download these presentations for educational or professional purposes.
Slidesfinder offers a wide range of presentation topics and categories, including business, education, science, technology, health, and more. Users can also search for presentations using keywords, tags, or by category. The website provides tools to create professional presentations with rich media, animations, and graphics.

One of the key features of Slidesfinder is its user-friendly interface, which allows users to easily upload, view, and share presentations. Users can also embed their presentations in their websites or blogs using the website's embed code feature.
Slidesfinder also offers premium services, such as the ability to create private presentations and to download presentations in high-quality formats. However, the basic features of Slidesfinder are free to use, making it accessible to anyone who wants to share their ideas and knowledge through presentations.

> How do I register with SlidesFinder?

Go to registration page (you can see signup link on top of website page) https://www.slidesfinder.com/signup . If you have facebook/gmail account them just click on SIGN IN WITH FACEBOOK OR SIGN IN WITH GOOGLE button, by this you will be a registered member of slidesfinder without filling any form, required detail automatically will be fatch from your account. If you do not a Facebook account, then click on "Signup". Fill all required fields and you will be a registered member of slidesfinder.

> Is slidesfinder account confirmation is mandatory?

Yes it is mandetory to active your account to login.

> Do I need to signup/login on SlidesFinder before uploading a PowerPoint presentation?

Yes, you need to login with your account before uploading presentation. Your username will be displayed on your uploaded presentation. Your registered email id is needed for sending your stats of uploaded presentation.

Slidesfinder is a sharing website for PowerPoint presentations search and share. Find your interest in the form of powerpoint presentations on slidesfinder and save your valuable time . On Slidesfinder you get presentations from our huge library of professional ppt presentations. We believe in making your search INFORMATIVE and FUN. Find your best ppt presentation from a pool of PowerPoint presentations stacked under important industry categories like business & management, heath & Wellness,eduction & training etc. We provide unique informative PowerPoint presentation for marketers, presenters and educationists. These professional PowerPoint presentations are uploaded by professionals from across numerous industry segments.These ppt presentations are available for FREE download.

Not just finding your interest, but facilitate you broadcast your interest. We have created this platform for easy sharing of PowerPoint presentations, ensuring that these presentations get maximum exposure. Create your slidesfinder account and upload PowerPoint presentations for free, share on social media platforms and BUILD YOUR CROWD WITH PRESENTATION !!

The Great Buddha says, "Share your knowledge.It’s a way to achieve immortality"! So, start sharing knowledge and we are here to make that immortal !!

Re-productivity of content are not allowed. Without prior written permission from author, commercial use of any content is illegal.