The is Part II of my look at Changing World Technologies’ thermal depolymerization process. This essay came from a reader, and was originally posted on April 12, 2007.
But I also want to add some comments that regular reader “Optimist” added following the previous essay. First, those comments:
The 85% efficiency claim is based on a faulty mass balance. The faulty mass balance is the basis for an equally faulty energy balance. You can verify by comparing production data (bbl oil/ton of waste) to the mass balance (still) presented by CWT.
Contrary to what the breathless writers at Discover magazine believe, this technology is good only for recycling lipids (fats and oils) and the fat-soluble amino acids in protein. To understand why you need to follow the process flow diagram, which consists of three key steps:
1. Thermal Depolymerization (aka Dilute Acid Hydrolysis – yes, the process uses sulfuric acid).2. Separation of water and [...]
Repost of TDP: What Went Wrong
The is Part II of my look at Changing World Technologies’ thermal depolymerization process. This essay came from a reader, and was originally posted on April 12, 2007.
But I also want to add some comments that regular reader “Optimist” added following the previous essay. First, those comments:
The 85% efficiency claim is based on a faulty mass balance. The faulty mass balance is the basis for an equally faulty energy balance. You can verify by comparing production data (bbl oil/ton of waste) to the mass balance (still) presented by CWT.
Contrary to what the breathless writers at Discover magazine believe, this technology is good only for recycling lipids (fats and oils) and the fat-soluble amino acids in protein. To understand why you need to follow the process flow diagram, which consists of three key steps:
1. Thermal Depolymerization (aka Dilute Acid Hydrolysis – yes, the process uses sulfuric acid).2. Separation of water and [...]
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