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Why is biomass a better alternative to natural gas
Why is biomass a better choice to natural gas?
poultry pellet making machine in between biomass gas and also natural gas
In recent times, the application of biomass gas is increasing. In several places, there arise competitions between biomass fuels and also natural gas. In this flow, I will take boiler burning for instance, and also compare the tools cost, operation expense as well as setting effect of biomass central heating boiler as well as gas central heating boiler.

This blog compares the economic and ecological impact of biomass fuel as well as natural gas. The devices price of biomass central heating boiler is greater than that of gas boiler. Taking into consideration the high rate of natural gas, the yearly operating expense (including the cost of gas, electrical energy, labors and also upkeep) of gas is greater than biomass central heating boiler.

When using biomass fuels, it calls for to be geared up with dirt collector, sulfur and nitrate getting rid of gadget to guarantee the toxin emission meet the standard. As for gas central heating boiler, it adopts low-nitrogen burning technology or denitrification gadget to guarantee the NOx emission fulfill the requirement.

Evaluation of biomass power
Biomass energy is solar energy deposited in biomass materials in the form of chemical energy. It comes from the photosynthesis of eco-friendly plants. It has the form of strong, liquid and gas. Biomass power is known as a renewable resource.

According to the various sources, the biomass gas can be classified right into 6 kinds: crop straw, forestry waste, animal dung, marine plants, energy plants, life waste.

Biomass power has the adhering to advantages
Low cost, wide circulation, big quantity, renewability, storable, easy to use.

Biomass energy likewise has some drawbacks:
Reduced power thickness, not appropriate for long-distance transport. To guarantee the biomass gas supply, it requires big area for storage space, which brings monitoring issue.

Plant straw has broad distribution, but it is affected by areas, periods, weather conditions as well as other aspects. The supply is not steady. Besides, the calorific value differs a great deal. Some are not appropriate for boilers.
Various type of biomass gas have different combustion results, which may cause slagging and also leaves excessive ash. The alkaline material in the ash will hinder the constant work of biomass central heating boiler and also create corrosion.
Biomass fuels are easy to obtain damp. The wetness content have wonderful effect on the burning temperature level. Over-high dampness material will certainly make the biomass gas not able to melt.

Affordable impact
Equipment price
Take a 4t/h vapor central heating boiler for example. The mainframe of a DZL straight biomass central heating boiler prices around ￥ 180,000, the price of auxiliary machinery as well as installation is around ￥ 65,000, so the complete tools expense is ￥ 245,000.

A WNS collection natural gas central heating boiler prices around ￥ 150,000, the price of auxiliary machinery as well as installment is ￥ 55,000, so the overall devices expense is ￥ 205,000. Consequently, the tools cost of biomass central heating boiler is greater than that of gas boiler

biomass fuel boilernatural gas central heating boiler.
Yearly operating expense
We still take a 4t/h steam boiler as an example, and contrast the yearly operation price of biomass gas and also natural gas boilers. The procedure price of a central heating boiler includes gas expense, power usage, labor expense and upkeep expense

Yearly fuel expense.
As an example:
The warmth performance of a biomass boiler is 80%.
The calorific worth of biomass fuel is 17.58 MJ/kg at the very least.
The price of timber pellets is ￥ 1250/t.
A biomass central heating boiler take in 717kg timber pellet per hr.
The boiler competes 10 hrs everyday.
The annual running time is 300days.
By estimation, the annual gas cost is ￥ 2,688,800.

Yearly electric cost.
As an example:.
The overall power of a force as well as induce draft fun is 29.5 kw.
The overall power of the reduction box, feeder, water pump as well as conveyor is 10kw.
Then the total power of the biomass central heating boiler is 39.5 kw.
The electricity price is ￥ 1.0/ kwh,.
The daily running time is 10 hours.
The annual operating days are 300 days.
Then the electrical fee for a year is ￥ 118,500.

Yearly labor cost.
For instance:.
The job has two shifts a day.

Each changes need 2 person. A firefighter and a water driver.
The wage is ￥ 3000 each.
The labor cost is 144,000 each year.

Annual upkeep expense.
Biomass boiler normally has numerous auxiliary machinery. Their failing price is greater than gas boiler. The annual upkeep expense is in percentage to the devices price. If the upkeep price is 2.5% of the equipment expense, after that it is ￥ 6100 every year.

By computation, the yearly running expense of biomass boiler is ￥ 2,957,400.

Gas boiler.
Yearly fuel expense.
For instance.
The warm performance of biomass central heating boiler is 90%.
The calorific worth of gas is 35.58 MJ/kg.
The rate of natural gas is ￥ 3.1/ m3.
A gas central heating boiler can take in 315m3 gas every hr.
A gas boiler runs 10 hrs daily, 300 days every year.
By computation, the annual fuel price is ￥ 2,929,500.

Annual electrical charge.
The power of the heater is 7.5 kw.
The power of water pump as well as various other power application tools is 7kw.
So the complete electrical power of the biomass boiler is 14.5 kw.
The electricity rate is ￥ 1.0/ kwh.
The working time is 10 hrs every day, 300 days every year.
So the yearly power cost is ￥ 43500.

Yearly labor price.
The work has 2 changes a day.
As the gas central heating boiler has greater automation, as well as the operation is basic, it requires only 1 fireman.
The salary is ￥ 3000 each month, so the annual labor expense is ￥ 72000.

Annual maintenance expense.
The upkeep job of a gas central heating boiler is not much, the expense is low.
Expect the upkeep cost is 1% of the equipment cost, after that it is ￥ 2100 annually.
By calculation, the yearly running expense of a biomass central heating boiler is ￥ 3,047,100.

cpm pellet press .
In terms of the devices expense, biomass central heating boiler is greater than natural gas boiler. In terms of the annual running price, as gas central heating boiler has higher automation level, needs much less power intake gadget, and also much less upkeep, the electric charge, labor expense and maintenance cost is lower than that of biomass boiler. However thinking about the high cost of gas, the total procedure price of gas central heating boiler is greater than that of biomass central heating boiler.

Environmental effect.
Biomass gas.
Scientist determined the exhaust of smoke, SO2 and also NOx in 2 biomass boiler.

These 2 central heating boilers has comparable dissipation ability. Both of them are not geared up with sulfur and nitrate eliminating device. However the first one is furnished with a bag-type dirt enthusiast, and the 2nd one is geared up with a film-type dirt enthusiast.

The boiler furnished with film-type dust collector can decrease the ash exhaust properly. In regards to SO2 discharge, the wood pellets can fulfill the stipulated criterion also without sulfur removing device. When it comes to NOx exhaust, the timber pellets can meet the criterion in boilers geared up with film-type dust collector.

Natural gas.
Natural gas is an excellent quality as well as tidy gas fuel. The adoption of natural gas in the boiler can lower the air pollution remarkably. The ash, sulfur and nitrogen web content in the gas is low. The smoke of natural gas contains little SOx, which a meet specified criterion. Yet the NOx exhaust is still a trouble. Investigated located the NOx emission of gas central heating boiler is 125mg/m3, and also 25% of them is greater than 150mg/m3.

Final thought.
According to the evaluation over, the type of biomass gas has fantastic impact on the pollutant discharge. Timber pellets has less SO2 exhaust than straw pellets. The biomass boiler with film-type dirt collection agency has better ash getting rid of result than bag-type dust enthusiast.

The NOx exhaust is beyond requirement in biomass central heating boilers without sulfur or nitrate eliminating device, whatever wood pellets or straw pellets. For that reason, it is advise to outfit effective dust collector, and also sulfur and also nitrate removing device.

Gas has advantages in reducing smoke and SO2 discharge. However with the boosting exhaust standard, even more gas central heating boilers will adopt low-nitrogen burning technology and nitrate eliminating device.

The particular advantages of natural gas and biomass fuel.
The price of biomass boiler is more than natural gas. Their operating expense is similar considering the rise of gas rate. Besides, the gas central heating boiler is much easier to control, and also it doesn't take much flooring space or fuel storage room.

The cost of natural gas is under federal government control, so it will not vary greatly. The natural gas supply can be assured when the gas central heating boiler remains in use. Biomass pellets supply is limited by seasons. The cost and also supply is unpredictable, which generally uses up big warehouse space.

In terms of environmental protection, biomass boilers need to be outfitted with dirt collection agency, sulfur as well as nitrate getting rid of device to make sure the smoke, SO2 and also NOx discharge fulfill the requirement. Yet gas boilers doesn't require dirt collection agency or desulfurizer, yet it need to embrace low-nitrogen combustion technology or nitrate getting rid of tool to cut the NOx discharge. Besides, the gas central heating boiler doesn't require dust cleansing procedure.

On the other side, biomass fuel is renewable. It is solar power transferred in plants by photosynthesis. As statistics reveal, the biomass power generated by photosynthesis is 173 billion load, yet only 3% of them are utilized. Besides, biomass power is carbon neutral, which means the CO2 usage in its growth equals the exhaust in biomass gas burning.

Fluidized-bed combustion is a technology based on gas-solid fluidized state. It has good adaptability to biomass fuels, the toxin gas exhaust is low. By adding desulfurizer to the fluidized bed, it can get rid of the sulfur straight, as well as decrease the SO2 web content in the smoke dramatically.

Nowadays, the fluidized bed can be made use of for the combustion of different kinds of fuels, ideal for the co-firing of biomass and also coals. The type of gas and also their proportion is flexible, so you can pick them according the price to decrease your price.

The high cost of natural gas is a problem. And also the price disparity between summertime and also winter months is buckling down. Biomass is an outstanding alternative to conventional gas. To fulfill the ecological demand and also achieve higher cost-effective advantages, it is essential to boost the application modern technology of biomass fuel, as well as increase the percentage of biomass in energy mix.


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