Gas Engine Oil Filtration, Biogas Engine CATERPILLAR 3516, Combined Heat and Power Plant CHP

Application Study

Biogas engine

Engine type: CATERPILLAR 3516 (1,200 kWe)
Oil volume: approx. 450 litres
Engine oil: Mobil Pegasus 905
Fuel: Biogas
Engine hours: approx. 57,000 hours

Challenge

Short oil change intervals. The operator had to replace the gas engine oil every 1,500 operating hours. The viscosity of the gas engine oil increased too fast.

Read more about the challenges and impurities in gas engine oil

gas engine oil filtration, gas engine, biogas engine, cjc lube oil filter

CJC® Lube Oil Filter installed on the gas engine

Solution: CJC® Lube Oil Filter

The customer decided to make a test run with the CJC® Lube Oil Filter for the gas engine oil’s continuous care and depth filtration (24/7).

Dirt holding capacity: approx. 2 kg
Water absorption capacity: > 1.2 litres
Filtration degree: 3 µm absolute, retention rate < 1 µm

The CJC® Lube Oil Filter removes particles, soot, oxidation residues and water and neutralizes the acids in the oil. The filter has two filtration housings.

The filter inlet is connected diagonally arranged directly at the oil sump, and the filter outlet is connected higher up – as far away as possible from the filter inlet. The pump unit of the filter enables an independent circuit for the continuous filtration and care of the gas engine oil (24/7).

cjc lube oil filter 27/27 for gas engine filtration

gas engine filtration for the biogas engine

Due to the continuous filtration and care of the gas engine oil by the CJC® Lube Oil Filter, the operator prolonged the oil lifetime from 1,500 to 3,997 operating hours, an increase of more than 60% The viscosity amounted to 150 cSt after 3,997 hours and was still lower than before, with 164 cSt after approx. 1,500 hours (reference new oil viscosity at 40 °C = 126 cSt).

After 3,997 hours, the operator evaluates the test result as a success because the aim to double the oil lifetime has been reached. The other oil condition values were well below the limit at the end of the test period. That means that the oil filling would not have had to be replaced even after 3,997 hours.

Spectro Oil in the United Kingdom analyzed the oil samples. The independent oil laboratory has analysed the gas engine oil (GEO) from Mobil Oil Danmark A/S since 1997.

BEFORE With CJC® Lube Oil Filter
Oil lifetime, operating hours 1.490 3.997
Viscosity at 40°, cSt
164 150
*) Oil analysis reports are available upon request.
gas engine oil filtration, prolong oil lifetime

Savings per year

Our customer saves only due to the prolonged oil change intervals (based on 8,000 running hours per year).

  • > 1,500 litres of gas engine oil
  • approx. 4,364 EUR oil costs (2.88 EUR/L)
  • approx. 3,940 kg CO2
  • 3 of 5 oil changes mean our customer also profits from a higher engine availability
gas engine oil filtration

Gas engine oil care instead of replacement simultaneously protect the environment and resources:

  • less fresh oil
  • less waste oil, and CO2
    > 2.6 tons of CO2 per avoided oil change (1,000 litres)*)
*) The thermal disposal of waste oil produces approx. 2.6 kg of CO2 per 1 litre.

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Gas engine oil filtration, gas engine, CHP