These are some of the technologies:
Its a list from an old version, so some of the products might have been discarded as others were added.
I am working on an update that will ad some NGL production lines too.
Ash production
To the casual observer ash is just a waste product. But in reality ash is a valuable chemical product as it can be processed into potassium. Potassium is our main base or akaline in both potassium-hydroxide and potassium-nitrate. At a more advanced stage this leads to production of the powerful oxidizer potassium permanganate (when combined with manganese products) using the more advanced technologies.
Drug furnace
The use of a specialized drug furnace makes the basis for akaline chemistry as it provides ash from burned wood. The process also yields charcoal which is used as an agent for water purification. The drug furnace also has functionality that lets your strip copper wire from wooden poles before burning them, making the process more friendly for the environment and more economic in terms of resources.
Basic bitumen I
Adds the basic necessary technology for mining and processing tar sands into bitumen and various late stage products. The main attraction in bitumen technology is synthetic crude oil production, but there are many lesser uses too. The most important is simple use of bitumen as a fuel, but asphalt and pavement are other important uses in early stages of development.
Water purification
Different ways and methods for dealing with both natural sourced water and wastewater-product from a variety of production lines. Charcoal and activated charcoal forms the basis for these technologies.
Basic bitumen II
You probably mostly know about bitumen from its use in pavement. You always kinda knew that tar and asphalt had something to do with oil. Or more vaguely with carbohydrates from the underground.
Such resources are best understood and sorted out based on their density, viscocity or their "thickness". From the most dense and viscuous bitumen to gases like methane and ethane. And off course all the better known liquid varieties in between. Like diesel, fuel oil, petroleum, gasoline. Perhaps lesser known is kerosine that is used as fuel in jet engines.
In essence bitumen is a segment of these carbohydrates in the lower, denser and more viscous part of the spectrum.
In nature you will find all of these as part of the same primordal soup that can be extracted from the underground. These carbohydrates originate from ancient organic material: Plant and animal remains exposed to high pressure and high temperatures deep in the underground beneeth us. So petrochemical materials are not a singular distinct compound like iron or gold but a mix of hundreds or thousands different compounds that gets separated out in the refining process and cleaned up according to use and need.
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Limestone
Besides the use of limestone in products like asphalt, the significance of limestone is again in akaline chemistry: Limedust act as a powerful agent in disolving organic matter and purifying chemical agents. The production of cocaine relies heavily on the supply of limedust as a reactant.
Pneumatics
Basic technology for air compression is the basis for nitrogen extraction.
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Solid fuel
One of the benefits of bitumen technology is the option to make petrochemical products in a solid form. The longchain carbohydrates makes it possible to blend a product with the desired viscoucity be it fluid, semi fluid or solid. Solid fuel have application in high density storage, in the production of high energy fuels and as a precursor in production of plastic materials.
Chemistry I & II
These technologies gives you access to advanced chemical processing. By separating nitrogen from compressed air, a range of fertilizer products are made possible. This also has obvious implications for the production of gunpowder and explosives. The main use is however in supercharging plant production with fertilizing agents like ammonium-nitrate and ammonium-sulfate.
Petrochem synthetics
The pertrochem module builds on early experience with bitument processing: Using a blend of bitumen and light oil, artificial crude oil is produced. This will supplement your needs for oil based products like plastic, solid fuel and napalm.
Steam cracking
Key to the use of tar sand and bitumen products is the use of high temperature steam cracking and thus transforming long chain carbohydrates into a variety of shorter/lighter fractions. Steam cracking lets refine any mixed weight oil product into various fractions. This allows the production of kerosine (essential for drug production) as well as other petrochem products.
Napalm production
One of the benefits of securing a stable high yield energy production is the variety of synthetic materials and products that petrochemical processing can provide. One prime example is the gel like substance known as napalm. This is based on a mixture of naphthenic acid and palmitic acid that can both be derived from different oil fractions.
https://youtu.be/IBvRghWF0rE
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Napalm Fire Warfare
While the locals can be a bit of a nuisance, nothing calms them down like a generous dose of burning napalm. The napalm flamethrower is a specialized weapon that takes advantage of the unique benefits of napalm. This is a vast improvement over the standard issued flamethrower using light oil as best available fuel: Longer range, longer lasting fire and more damage. Avoid carelessly wandering into the inferno that you have created as the burning napalm has a long lasting and very damaging effect on organic tissue.
The module also makes the improved napalm fire turret available for those who need automated scorching of trespassers.