Biomass Power Specification

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RG1000 General Specification Electrical output:1.0MWe (plus 1.1 MW heat) Total site footprint required for gasifier module, engines and fuel storage area: approximately 25m x 25m (typical site layout drawing available on request) Throughput : 7,500 tonnesper annum (approx 1000kg per hour of clean woodchip/ shredded biomass) The system is designed to run at less than 75dB External Cost to be considered: - Buildings and civil work Grid connection which varies from site to site Fuel storage and feed system (Refgas can advise) Onsite training & commissioning(above the 10 days in UK included in our quote) Secondary exhaust gas clean treatment (WID compliance depends on feedstock) Continuous exhaust gas monitoring as required by WID 1

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General Specs of a Biomass Power System

Transcript of Biomass Power Specification

Page 1: Biomass Power Specification

RG1000 General SpecificationElectrical output:1.0MWe (plus 1.1 MW heat)

Total site footprint required for gasifier module, engines and fuel storage

area:

approximately 25m x 25m (typical site layout drawing available on request)

Throughput : 7,500 tonnes per annum (approx 1000kg per hour of

clean woodchip/ shredded biomass)

The system is designed to run at less than 75dB

External Cost to be considered: -

Buildings and civil work

Grid connection which varies from site to site

Fuel storage and feed system (Refgas can advise)

Onsite training & commissioning(above the 10 days in UK included in our quote)

Secondary exhaust gas clean treatment (WID compliance depends on feedstock)

Continuous exhaust gas monitoring as required by WID

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RG1000 Scope of SupplyGasifier module Complete with: -

Refgas Designed Gasifier Reactor

Complete with : - Feed Hopper, Mixer System, Auto Level Control,

Associated Auto Valves and Instrumentation

6 Stage Gas Clean Up System Complete with: -

Duplex Cyclones (for dust removal)

Twin Stage Heat Exchanger (air and water cooled)

High Efficiency Scrubber System HESS (for 99% tar and particle removal)

Blower Filter (This filter is for the protection of gas blower)

Gas Chiller (for final gas cooling to meet engine requirements)

Gas Blower (for drawing air through the gasifier to make Syngas and on through the gas clean up system then to the engines)

Coalescer Filter (for final gas polishing/ engine protection)

System Safety FlareSystem Safety Flare

Flare system used for start-up, shut down and safety.

Water Clean Up System Complete with:-

Water Baffle Tank (for primary cleaning of water circulating through scrubbers)

Basic Water Polishing System (Local consent levels must be confirmed where discharging directly to drain as additional polishing may be

required)

Control Panel

PLC controlled panel with touch screen HMI for automatic control on the system. The control panel is synchronized with selected engine

model.

All Pipework, instrumentation and controls associated with the gas production, gas clean up and water treatment within the gasifier

module are included in the package. The system is manufactured in four ISO container skids making the process easy to ship with minimal

site assembly work required. (1 off 20’ and 3 off 30’, plus flare and engine)

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Basic General Arrangement

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System Built into 4 x’ Shipping Container size skids.

Easy to ship and simple to install (1 x 20’and 3 x 30’)

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General Information SheetGasifier Dimensions - 14m x 4m x 10m high (excluding engine and fuel storage)

Gasifier Built onto 5 Transportable Skids - 1x 20’ & 3 x 30’ shipping containers

Gasifier Type - Downdraft

Gas Cleaning and Cooling - 6 stage system to guarantee engine quality

requirements

General Performance

Outlet Syngas Quality - <5mg/m3 tar

25-60oC as required by engine

120-150mbar as required by engine

Typical Syngas CV range - 5.2-6 MJ/m3 (HHV)

Typical Syngas Composition - Hydrogen - 10 to 17%

Carbon Monoxide - 17 to 21%Carbon Monoxide - 17 to 21%

Methane - 2 to 4%

Carbon Dioxide - 10 to 14%

Nitrogen - 40 to 56%

Others - 1 to 2%

Typical Syngas Production Rate - 1690 to 1985m3/hr

Gasifier Efficiency - 75% Hot Gas

- 68% Cold Gas

Gasifier Availability - 85%

Parasitic Load - 8-10% depending upon electrical cooling

requirement (i.e.can spare system heat from gasifier cooling

circuit be recovered for another use?)

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General Information SheetFuel Requirement

Fuel Required - 800kg to 1195kg/hr (wet 20% moisture)

Minimum Dry CV Requirement - 14MJ/kg

Target Average Moisture Content - 20% (min 15% max 25%)

Unprepared woodchip Specification - G30 – G50(ideal)

Note: The RG1000 can also accept biomass briquettes and pellets

Typical Case Study Figures (woodchip)

Engine Efficiency - 39%

Electrical Output - 1.0MWe

Thermal Output (from engine) - 1.1MWht

Biomass Dry CV - 19MJ/kgBiomass Dry CV - 19MJ/kg

Biomass Moisture Content - 20%

Fuel Requirement - 992kg/hr @ 20% moisture

Energy Content in Input Fuel - 14605MJ/hr (4057kW)

Total Energy in Produced Syngas - 9566MJ/hr (2657kW)

Average Syngas Production @ 40oC - 1835Am3/hr

Note: as Syngas CV fluctuates during normal operation, the syngas production rate automatically adjusts itself to maintain the required

energy value in the syngas

Condensed Water to Discharge - 100kg/hr (maximum discharge rate required

350kg/hr to allow for fresh water make up as required)

Fresh Water Requirement - 250kg/hr

Char Production - 95kg/hr

Tar removed from syngas and recycled - 1.78kg/hr 5

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Fuels

• The Refgas Gasifier can run on wide range of biomass

providing it meets a minimum particle size, minimum CV and

maximum moisture content.

• Typical types of fuels used :-

– Energy Crops, such as miscanthus

– Virgin woodchip, from sawmills

– Recycled waste wood, from local suppliers, simply requires chipping– Recycled waste wood, from local suppliers, simply requires chipping

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RG500 System 3D Layout

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System Built into 4 x 20’ Shipping Container size skids.

Easy to ship and simple to install

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Refgas System

• The Refgas 1MW CHP system has a small footprint and can be

fitted into an area as small as 25m x 25m including the full

gasification system, engines, fuel storage and materials

handling.

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Refgas System

• Refgas have developed a 1MW CHP gasification system that

produces syngas suitable for running engines.

• The system is built into container based skids that makes

transportation installation simple. This means that equipment

is fully tested in the factory before arriving at site minimising

commissioning time.

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Refgas 24/7 Operation

• Renewable energy from biomass is able to run 24/7

• The Refgas system is able to run for up to 8000 hours/ year

• Unlike other renewable energy sources, the Refgas system

can provide base load at all times without being dependant

on wind, sun or tides.

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PLC Controlled

• We have designed the system to require minimal human

intervention, with the gasifier running automatically via our

specially developed PLC program. It can also be operated and

monitored via SCADA

• We have put the process through independent HAZ-OPs ,

DSEAR and LOPA studies to ensure the system is safe. This

helped develop the safety systems included within the PLC helped develop the safety systems included within the PLC

program

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