Newton, get the hell away from this as soon as possible. My little burg just had a plant shuttered that produced diesel from hog and turkey offal. The operation was claimed to be odor free before it began operation. The smell produced fouled the atmosphere of the entire city. Real estate prices plummeted due to the sickening stench.
The plant was also financed by the federal government. It was a disaster for my city.
Thank the Lord it had to close down. The exhaust, of the diesel produced, smelled as bad as the processing of the animal guts, I’ve been told by those who tried the fuel.
Your post reminds me of the vacation time I've spent in Bradenton,FL....home of a huge Tropicana plant.When they're doing a "run" you can smell citrus for some distance.It's kinda cool! Sure better than smelling chicken innards.