FEASIBILITY OF BIOGAS PRODUCTION FROM NAPIER GRASS BY DR.P.C. PATEL

Global warming from greenhouse gases had caused environmental impact especially from the use of fossil fuel in heating and the electricity sector. Using of biogas was an alternative energy that reduced the amount of greenhouse gases.
Napier grass is an attractive feedstock for biogas & bioethanol production. Napier grass is a perennial species so helps in soil conservation and it has become a priority source of biomass for alternative energy production in Thailand, as the National Energy Policy Council has raised the target of power production from Napier Grass to 3,000 MW under the 10-year alternative energy development plan (2012-2021) for Thailand.
Hybrid Napier can be harvested up to 5 to 6 times per year. In addition to use as animal feed. It is the energy crop of the future because the grass is photo-emissions from the extraction of organic fuels such as alcohols, methane and pyrolytic oils. Napier grass is specifically stored for the production of biofuels and bio-based products, primarily due to its high cellulose content (34.2-40%), high yields per unit area, drought tolerance and forms a complete crop due to a good water use efficiency.
Biogas is an economical alternative source of energy that will reduce the share of fossil fuels used in the transportation sector and productive industry, reducing environmental concerns caused by widespread use of these resources (eg, climate change and global warming) and the energy source will increase, besides the safety, and power supply will also be improved. Nowadays, biomass is responsible for 10% of primary energy consumption worldwide and can be used as a promising feedstock for biofuel production.
Feasibility of Biogas Production from Napier Grass
Napier grass contains 30.9% total carbohydrates, 27% protein, lipid 14.8%, total ash 18.2%, fiber 9.1% (dry weight). Its organic compositions are an ideal feedstock for biogas production. The fresh grass was harvested after 5-week plantation, grounded in 0.5 to 1 mm diameter size before fermentation in mesophilic batch reactors, with varying solid concentrations of 5 - 15%. The optimum condition for the biogas production was found at 5% solid concentration. Methane content, yield and production rate were 53%, 122.4 mL CH4/g TVS remove, 4.8 mL/hr at the optimum condition. Economic analysis of biogas obtained from the experiment with liquid petroleum gas (LPG) with benefit/cost ratio (B/C ratio) greater than 1 suggested that the Napier grass is considered as a potential energy crop.
Napier Grass is considered to be the fresh energy crop to be used in power production, with great potential. The specific species that suits best as energy crop is Pakchong 1 (Super Napier) , harvestable 5-6 times a year and yield as much as 70-80 tons/year/rai, almost seven times more than other grasses. Its nutrition structure fits for microbe to grow and generate methane gas. Napier grass can generate bio gas generation at 6,860-7,840 cubic meters/rai/year that can produce Compressed Bio Gas with heating value of 14-18 MJ/kg, replacing usage of NGV by 3,118-3,563 Kg./year.
There are many high yielding Bajra Napier hybrids viz., APBN-1, Super Napier, CO3, CO5, BNH3, BNH10, IGFRI-5, IGFRI-10, IGFRI-16, NB-21 and PNB-233, are recommended to the dairy farmers in India.
At present scenario, the Super Napier showed promising and remained at the top for high forage production per unit area and time. It produced the highest green forage yield of 300 to 400 tons/ha in 6 to 7 cuttings in one year and thereafter 2- and 3-year, green forage yield is 250 to 300 tons/ha/year. The first cutting will be taken after 50-60 days of planting and the subsequent cuttings at 45-50 days interval.
After reaping and fermenting the age of 60-day old fresh Napier grass, the anaerobic digestion process will result in bio gas. Napier grass can generate bio gas generation at 6,860-7,840 cubic meters/rai/year that can produce Compressed Bio Gas with heating value of 14-18 MJ/kg, replacing usage of NGV by 3,118-3,563 Kg. /Year. One metric ton of Napier Grass can generate 90 cubic meters of bio gas, convertible in to 170 KW/day electricity.
Study of Napier Grass Harvesting Age Influencing on Biogas Production
Biogas production of Napier grass is influenced due to variety/hybrids of Napier grass, soil type and climatic conditions, nutrient management, cutting interval and harvesting age. Here, we will discuss on harvesting age.
Harvesting age of grass is a key consideration factor in biogas plant operation form grass bio methanation.
Study of methane (CH4) production from Napier grass at various cutting intervals.
Napier grass at the cutting interval of 60 days gave the highest CH4 yield of all various cutting intervals. For further information on forage production technology on Napier Grass or other forage crops or on nutrient management on any field crops, please contact to me. Dr.P.C. Patel, [e-mail] or Mob No. [phone]

[@husnainhaider8262]

Thanks

[@user-mp2ls6zv1y]

Bahot Bahot Dhanyvad

[@shailendraTiwaribhopal]

Dhanyavad professor

[@madezsa2778]

Excuse me sir, would you explain about mass balance of Napier grass become biogas (in percent)?

[@73hani]

hi prof, could u share any write ups on type of soil suitable for super napier. thx

[@himanshu2232]

Thanks सर आपने मेरे request पर नेपियर ग्रास से बायो गैस पर वीडियो बनाया 🙏

[@pcpforage]

Yes, It is true and peoples have like it.

[@hemantdhanorkar5462]

sir Can you pls guide me whom to sell and how to sell BioCNG produced from napier Grass.... because paisa lagakar ya finance karke Plant banana aur usko Chalana asan ho sakta hai... But the Most Difficult and Important part is SELLING. So pls guide me.

[@Swamigohil607]

Hi

[@husnainhaider8262]

Could you please make a comparison between sorghum and sorghum sudan grass. Thanks

[@pcpforage]

Sorghum crop have only cut and it is used for grain purpose. It is not multicut. The sorghum Sudan grass us a multicut and used for fodder. It has more number of tillers and grain size is very small. It can be cut for 2 to 4 cuts in a year. Eg. SSG.59-3 variety of sorghum is a Sudan grasss and famous for multicut.

[@sunilbachhav1644]

Is there any plant generating biogas from napier grass ? Is there any detail project report for bio CNG generation from napier grass ?

[@pcpforage]

No

[@shridharavachat1623]

Soon Meera clean fuels Ltd is going to establish bio cng plants.

[@nishantgoyal8144]

Sir, You might have made this presentation from thai references.
So just to let u know tons/year/rai means tons/year/0.4 acre.
1 acre = 2.5 rai (thai land measurement)

[@pcpforage]

Green forage yield in tons per hectare (2.5 acres i.e; 10000 square meter area in one year. This means Hybrid Napier 5 to 6 cutting in a year.

[@laxminarayanrathi6177]

Some one has developed variety yield 1000 ton per acre

[@imrankhan-lx7jh]

Sir is it possible to make biomass briquettes from napier grass ?

[@pcpforage]

Yes, but recovery is less as dry matter content is low. But harvested at longer period (at 90 to 150 days) then recovery of briquettes will be increased.

[@imrankhan-lx7jh]

@@pcpforage and calorific value will be also increased or not ?

[@ramjirastogi8664]

Sir how many tons of napier grass is required to produce 1 ton of cng?

[@spreepriya]

20 ton

[@sandippatare6618]

Sir is it possible to make ethanol from napier grass as same like sugarcane.

[@pcpforage]

Yes, we can prepared ethanol from Napier grass.

[@sandippatare6618]

@@pcpforage pls give ur no sir

[@vineettayal5469]

Sir how much yield from napier to ethnol and cng and biomass pallet too

[@pcpforage]

I know more about Hybrid Napier production rather than Biogas plant. But, you will look website and Thailand has started the project of Biogas from Hybrid Napier Grass.

[@pcpforage]

Methane yield/m3 per ton VS/170 - 220 at 60 days harvesting of Napier grass and Methane yield m3 per ha. / year; 7,012 - 16,500 at 60 days harvesting of Napier Grass. Please send me Email ID so I will send you the power point presentation.

[@sanjitkg]

@@pcpforage
Sir, pls do send your ppt on approx no. of tons per acre per annum yields of Napier Grass.
The standard conversion rate of compressed from Napier grass is approx in the ratio of 1:10 by weight.

[@pcpforage]

The average green forage production is 100 to 150 tons per acre in one year.

[@rajkumarpatel9224]

Sar kya main aapse contact kar sakte hai

[@pcpforage]

Yes, My mob no is 99090 22116

[@arvindsangani4895]

नोट पोसीबल

[@nikhilgoel2950]

Hello Sir.
We are Biogas producers. We want to connect with you for further assistance on seed suitable for Nappier plantation, as people are not getting Good Yield. Please comment your number so that we can reach out to you.

[@pcpforage]

Co4,Co5 and super Napier are the best variety of Hybrid Gamat apier grass.My email ID is [e-mail]