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Biogas Generators
  • ※ No Exhaust Gas,Start quickly in cold region,Lower running cost
    ※ Low operation cost of nature gas generator
    ※ Long designed overhaul term: 25000 ~ 30000 hours
    ※ Electronic Air/Gas mixer. The mixer guarantees optimum air-fuel ratio, improves thermal efficiency, reduces NOx emission. Unique air-fuel ratio adjusting system suits 30% ~ 90% methane density. 

Keywords: Biogas Generator

Biogas Definition and Range

Biofuel Gas: biogas typically refers to a mixture of different gases produced by the breakdown of organic matter in the absence of oxygen. Biogas can be produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste or food waste. It is a renewable energy source and in many cases exerts a very small carbon footprint.

Biogas can be produced by anaerobic digestion with anaerobic bacteria, which digest material inside a closed system, or fermentation of biodegradable materials.

Biogas is primarily methane (CH4) and carbon dioxide (CO2) and may have small amounts of hydrogen sulfide (H2S), moisture and siloxanes. The gases methane, hydrogen, and carbon monoxide (CO) can be combusted or oxidized with oxygen. This energy release allows biogas to be used as a fuel for power generation.

Basically speaking, biogas refer to low BTU gas such as digester gas, landfill gas, sewage gas, city waste gas, sludge gas etc.

► How Biogas Produced ?

Typical Diagram of Biogas/Digester Gas Gasification Line

WALT provides Biogasl Gas engine generator and Power Plant in Shanghai China. WALT Biogas engine Generation driven by Cummins, Perkins, MWM-Deutz, JDEC 190 engine, coupled with Stamford, Leroy Somer, Siemens or Marathon alternators, power ranging from 20kva to 4000kva.

JDEC 190 Biogas Generation from 300kw to 1000kw

MAN Biogas Generation from 40kw to 500kw

Cummins Biogas Generator from 20kw to 2000kw

Perkins Biogas Generator from 300kw to 1000kw

MWM-Deutz Biogas Genset from 200kw to 1000kw

By adopting gas generators concerning technologies of mixer,ignitions system, governor system from WOODWARD,HEINZMANN,ALTRONIC,IMPCO and equivalents, WALT natural gas generator can run at highly steady and credible performance, easy for maintenance, more longer life and economic cost based on reliable quality.

Main Specification of WALT Biogas Gas Engine Generator

Gas Engine



Stamford, Siemens, Mecc Alte or Leroy Somer


Woodward, otortech, Gheinzmann and equivalent.

Ignition Controller

Altronic, Motortech, AFS

Spark Plugs

Bosh, NGK, Motortech, STITT


USA Impco, Woodward or Heinzmann and equivalent


ABB or equivalent



Control Module:

DeepSea, ComAp, Smartgen, Harson

Optional Device:


Soundproof Canopy / Container

ATS and Synchronization Parallelling Panel

Remote Control

PSCM System

PMG Alternator

Cooling Tower, Remote Table Radiator

Oil and Water Heater

Muffler and Pipes

High Voltage Alternator 6.3kv and 10.5kv, High Voltage Electrical Control Cells (PT Cabinet, CT Cabinet, High Voltage outgoing cabinet, DC Panel, Groud Resistance Cabinet and low voltage distribution cabinet etc)

WALT Biogas Quality Requirements
The content of CH4 ≥40%, changing rate ≤2%/min
Gas Temperature ≤40℃
Pressure of biogas: 7-20kpa, rate of pressure change ≤1kpa/min
Moisture Content≤40g/Nm3
Impurity particular≤5um, Impurity content ≤30mg/Nm3

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