Choosing hot water supplied absorption chiller to gas engine

Hello

I am in my final year in University and I'm writing my thesis about tri-generation power supply. One of my task is to choose an absorption chiller to a gas engine.

The IC engine is a Wärtsilä 18V34SG.
6060 kWe
4880 kWt at 90/70°C temp. step
5595 kWt at 90/60°C temp. step
5660 kWt at 90/50°C temp. step

Can you help me to find an absorption chiller that fits to these termodinamical parameters?
The chiller utilizes the hot water "produced" by the engine. I browsed many catalogues from different manufacturers, but none of them fit to the temperature step and the heat performance at the same. To tell the truth, I dont even know what criteria based on should I choose. I am puzzled.

Thanks for the answers.