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FAQ

What output can I expect?

In addition to the rated electrical power there is process heat. A typical 1MWe system will provide around 1.8Mw of heat recovered from both the generator set exhaust (550 degC), the engine radiator (75 degC) and the heat from gas cooling. This heat can be utilised for any purpose, such as a district heating scheme, wood chip drying, crop drying, greenhouse heating, etc..

What else will I need to operate a system?

Electric power - at start-up a source of 3 phase electricity (grid or small diesel or gas genset) is needed for the electricial control and data systems and the start-up blower
Water Supply - the system uses a small amount of clean water

What are the economic benefits of a Powermax project for me ?

Powermax gasification plants tackle two major local problems: elimination of local waste and cost of energy. By converting local feedstock into energy you lower your costs and you create new revenues (i.e. selling electricity on the grid). Energy produced through Powermax gasification is renewable and is supported by your local renewable energy support policies.This model of circular economy is also an opportunity to increase your energy independence and it creates local employment.

My gasification plant meets tar related operational problems, can Powermax help me ?

Powermax doesn’t provide expert services on plants operating with other technologies.

Powermax can assess how Powermax gasifier or Powermax gas purification system could substitute your initial technology. However, we usually recommend replacing both gasifier and gas conditioning unit . In extreme cases, engine and biomass preparation units should be adapted.

Is Biomass Gasification a New Technology?

The gasification process has been used for well over 180 years. Until the widespread availability of natural gas in the 1950’s, coal gasification was used to produce the gases used in many city street lights. Commercial development was not seriously explored for decades due to the expanding use of less-expensive petroleum-based products. During the oil crisis of the 1970’s, research and development in biomass gasification technologies were once again brought to the forefront.

What Makes Biomass Gasification environmentally friendly?

Biomass is organic matter- and Biomass energy development likes to take what is usually thrown away and turn it into energy. Our technology, the Powermax Gasification Process allows business and industry to operate “off the grid” using their own waste stream (pallets, boxes, paper), or materials from agriculture such as farming, milling and ranching. We use clean technology to take the stored energy from these materials and create heating, electricity, even cooling through CHP (Combined Heat and Power).

What are the benefits to the local economies touched by Powermax’s projects?

Powermax can produce dozens if not hundreds of employment opportunities for local communities when a plant project is developed.  There are a number of different sectors where jobs can be created: construction, farming, harvesting, feedstock transportation, feedstock preparation and plant maintenance.  Because often times our plants will be built in rural areas, the impact can be very welcome and have a dramatic improvement on the local economy.

What can the gas produced in the gasifier be used for?

The gas mixture produced by the gasifier can be used for process heating applications by operating the gasifier in a forced draft (positive pressure) mode and passing the gas directly to a burner on a boiler to make steam for an electrical turbine generator or directly to an internal combustion engine.

 

What is in the gas that comes out of the gasifier?

The gas from the gasifier (Syngas) is basically composed of carbon monoxide (CO), hydrogen (H2), and nitrogen (N2). The CO and H2 is the combustible portion of the Syngas. It is used similar to natural gas, but it typically has lower energy content. This makes it an effective way to transfer the energy in the feedstock into Syngas to run a steam turbine or generator. Therefore the Syngas is cleaned and it is piped to the turbine or genset, the exhaust is cleaned with state-of-the-art emission control equipment after it has been burned as a fuel. In this way, reliability of the control equipment and quality of the exhaust gas stream are assured to meet all applicable air quality standards.

What’s the advantage of biomass gasification over production of biofuels?

A Powermax gasifier can accept a range of feed stocks and thus the technology supports a bio-diverse resource base rather than a monoculture energy crop. However the energy density of the gas is far lower than that of liquid bio-fuels, making it more suitable for stationary applications than transport.

Biomass production also removes the same amount of CO2 from the atmosphere as is emitted from gasification.

While other biofuels technologies such as biogas (from landfills) and biodiesel (from agricultural sources) are carbon neutral too, gasification can operate on a wider variety of input materials and can be used to produce a wider variety of output fuels.

Why do we need biomass gasification now?

Gasification is a clean, affordable and environmentally sound renewable form of energy that provides a solution to forest and agricultural management residue issues we have right now. Another challenge is energy security. Governments want to use their own resources to produce energy and provide energy independence.   We need to displace some of the energy we are literally shipping in from other parts of the world, and, probably more importantly, wean ourselves from dependence on foreign energy suppliers.

Why do we need biomass gasification for renewable energy, isn’t wind, solar or other forms of renewable energy enough?

Wind and solar power are key components to the future electricity generation mix because they are low maintenance and greenhouse neutral. Solar generation has the advantage of peaking at the same time as peak air-conditioning loads, and wind energy when networked sufficiently widely with appropriate interconnection can provide base-load generation. However, neither can provide on-demand generation for load-matching – a problem that exists in everywhere, due to our remote location and “islanded” utility generation. Biomass gasification can provide this 24 hours a day, seven days a week, and, if supplied from sustainably-harvested fuel, it can be a truly greenhouse-neutral on-demand generation system to complement wind and solar in a carbon-neutral way.

Do Powermax Gasification Systems Pollute? What are the byproducts from the biomass gasification process?

1. The gasification of biomass as a feedstock produces Syngas. The Powermax gasifier is optimized to generate the maximum gas and little else. By products of the process are low-grade activated carbon or (Biochar) and some inert ash. Ideally, these by products are combined and returned to the soil as a soil conditioner re-capturing or sequestration of the carbon and nutrients in the soil. The Biochar then reduces the need for fertilizers which in turn improved the economics and waste due to farming.  Waste heat is also produced by the process and can be used for water or space-heating, cooling, manufacturing processes, or for pre-drying the fuel for the gasifier.

2. Gasification reactions produce small amount of water, present in the form vapour at the outlet of the gasifier. If the syngas is to be cooled down (i.e. for powering gas engines), water condenses in the gas conditioning unit.

3. Tars that are separated by Powermax ESP(electrostatic precipitator) from the gas can be re-burned and used as fuel or can be sent back to reactor.

4. The syngas is sent directly to the internal combustion engines when used for electricity, the engine combusts the gas and any post emissions are treated in the engine system and catalytic converter meeting the engine manufacturers’ specifications for emissions if needed.

Is this an incinerator?

No.  It heats the biomass fuel to create Syngas.  The Syngas is directly consumed in an internal combustion engine to create electricity, or directly in a gas fired boiler to create steam, or other thermal applications where you can substitute Syngas for LPG or Natural Gas, not to dispose of waste.

How does Powermax gasification system compare with other gasification technologies?

·Complete system: Powermax manufactures complete gasification power generation systems includes gasifiers, gas purification systems and gas generator sets.;

·30 Years Experience: Powermax has almost 30 years history in gasifier power generation business,  All Powermax gasification designs benefit from more than 100 reference installations worldwide.

·Powermax developed and offer you more than 10 different design gasifier technologies according to different feedstock and different application, the best gasfier technology for your business !

·Powermax Gas Cooler and High voltage electrostatic precipitator make tar free syngas and can be consumed by 100% syngas engines or dual fuel engines without the concern of engine fouling;

·Powermax supply heavy duty 500-1200rpm gas generator sets which suitable for power plant 24/7 running.

·Modular design: occupy small footprint, less civil works, fast fabrication. Easy to deploy where the biomass is, avoiding non-value added transport costs;

Scalable solution: Time to market is dramatically reduced and overall installations are scalable with supply and demand, Utilizes agriculture waste and forest management residues, Renewable Energy sites designed to utilize our solutions are ”sized” to the biomass residues available, avoiding supply interruption or additional transportation costs. Our system can manage C4 types of grasses and non-typical biomass which are fast rotation crops, which further improve carbon neutrality and promote use of marginal lands for biomass energy feedstock production. Our system ships complete in a high cube 40ft container, anywhere in the world. Given the size and modularity of the system, local distribution capacity is unaffected. Therefore, expensive distribution costs are avoided;

·We utilize the waste heat from generators to dry/condition the biomass residues which qualifies as combined heat and power (CHP). Additionally, the heat can be produced to fire wood kilns, cooking, and process needs in a very environmentally friendly manner;

·The Powermax System is completely automated and has the capability to control an entire plant with additional programming and hardware.

·Powermax also has own 5MW biomass gasificaiton power plant, customer also can send their engineers and technicians to China for training. In the meanwhile, Powermax also can send Powermax Engineers and Technician for O&M the projects worldwide.

What is the maximum moisture content of the biomass?

UFBG - require feedstock with moisture content from 5-60%.

CFBG - require feedstock with moisture content lower than 16%.

DFBG - require feedstock with moisture content lower than 20%.

TFBG - require feedstock with moisture content lower than 20%.

However you can supply biomass with higher moisture content (up to 65 %wb). In that case, we install a biomass dryer powered by thermal energy recovered on the plant!

The integration and supply of a well suited biomass dryer is part of our complete offers.

What is the difference between ashes and biochar ?

Thermal conversion of biomass produces solid co-products; these contain various concentrations of mineral matters and carbon.Ashes refer to solid co-product of complete combustion of the solid feedstock. Ashes contain mineral matter initially present in the feedstock. Biochar refers to solid co-products of gasification: Unlike complete combustion, mineral matters leaving the gasifier are linked to some carbon content.

Why Powermax offer four different gasifier technology?

Powermax always believe there is none type of gasifier can use any kind of biomass, waste and coal. For different application different gasifier applied. 

What does CFCG, DFCG,SSCG,DSCG mean?

CFCG - Circulating Fluidized-bed Coal Gasfiier

DFCG - Doube-fire Fix-bed Coal Gasfiier

SSCG - Single Stage Coal Gasfiier

DSCG - Doube Stage Coal Gasfiier

ABOUT OUR TECHNOLOGY & SOLUTIONS What does CFBG,DFBG,UFBG,TFBG mean?

CFBG - Circulating Fluidized-bed Biomass Gasfiier

DFBG - Downdraft Fix-bed Biomass Gasfiier

UFBG - Updraft Fix-bed Biomass Gasfiier

TFBG - Twin-fire Fix-bed Biomass gasfiier

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