# The chemical industry: what it makes and how it is organised: A map of the course

Source page: https://www.materialinsights.org/learn/chemicals/chem-industry-map/p5/

[Understanding Chemicals](https://www.materialinsights.org/learn/chemicals/) / [Module 1: The chemical industry: what it makes and how it is organised](https://www.materialinsights.org/learn/chemicals/chem-industry-map/) Part 5 of 5

## A map of the course

The modules that follow climb from simple to complex. First come the tools: how a process works and how a plant earns money. Then the big-volume chains, from inorganics to plastics. Then the low-volume, high-value chemistry of colour, crop protection, drugs and specialties. The course ends with bio-based chemicals and plastics. Each paragraph below says what a module covers and how it builds on this one.

### 5.1 Modules 2 to 7 supply the tools and then follow the trunk of the tree

Module 2, how a chemical process works, opens the box this module has kept closed. Every plant is a sequence of reactors, where molecules are rearranged, and separators, where the product is pulled out of unreacted feed, by-products and solvent. It explains conversion, selectivity and yield, chemical equilibrium and why temperature and pressure are chosen as they are, catalysts, recycle loops and where the energy goes.

Module 3, plant economics basics, follows Brennan in turning engineering into money: estimating capital and operating costs and judging profitability over a plant's life. Brennan frames a selling price as a floor price, covering production cost with the best technology and scale plus a minimum return on capital, plus a margin that is large for a new product and decays as competitors arrive. Commodities trade near the floor of the most efficient producer, which is why feedstock and scale decide winners; specialties keep their margin only while they stay differentiated.

Module 4, heavy inorganics, follows the mineral raw materials of Part 3 into Sulphuric acid, Chlorine, Caustic soda, Ammonia, Urea, Phosphoric acid and the air gases Oxygen, Nitrogen gas and Argon. These mature processes show clearly how energy recovery, raw material use per tonne and plant size set cost.

Module 5 explains the refinery, the steam cracker and synthesis gas: why ethane and naphtha crackers give such different slates of Ethylene, Propylene, Butadiene and aromatics, and how Methanol became a route to olefins.

Module 6 turns building blocks into polymers such as Polypropylene, PVC and PET resin, fibres such as Polyester fibre, and detergent raw materials such as Linear alkylbenzene, and shows how multiplying grades turn commodities into pseudo-commodities.

Module 7 steps back to the system: scale, capacity and the investment cycle of Part 4, feedstock choice, process safety and sustainability. Kent and Wittcoff recall disasters such as Flixborough in 1974 and Bhopal in 1984, and the IEA puts the sector's direct emissions at about 1.5 billion tonnes of CO2 a year.

- Brennan (2020), Ch 2 Market evaluation and forecasting · pdf p. 34
- Kent (2012), Ch 1 Recent History of the Chemical Industry 1973 to the Millennium (Aftalion) · pdf p. 24
- Wittcoff (2004), Ch 1 The Chemical Industry · pdf p. 64
- IEA (2018), The Future of Petrochemicals · pdf p. 12

### 5.2 Modules 8 to 12 move into low-volume, high-value chemistry

Module 8 covers Dyes, Organic pigments and Paints and coatings: how colour is built into molecules, how pigments such as Titanium dioxide are made and finished, and how paint makers formulate products for customers. Kent's history of the paint industry, consolidated by acquisition into a few world groups, shows how a specialty market can still reward scale in distribution and technology.

Module 9 covers soaps, detergents and agrochemicals. Detergents mix commodity chemistry, such as Surfactants made from Linear alkylbenzene or Fatty alcohols, with consumer marketing. Agrochemicals such as Herbicides, Insecticides and Fungicides are research-intensive and regulated, but tied to weather and crop prices, as Part 2's case on drugs and crop protection showed.

Module 10 covers pharmaceuticals and fermentation. It follows a drug from discovery to Small-molecule APIs and formulated product, and explains how microbes make Antibiotic intermediates (6-APA, 7-ACA), Amino acids (lysine, methionine), Citric acid and Industrial enzymes. Kent's example of penicillin, whose cost fell from $25,000 a gram to $30 a kilogram through better strains and processes, shows how biology can become an industrial process.

Module 11 is a historical case: how the synthetic dye industry worked between 1857 and 1914. Wittcoff credits the English chemist Perkin with founding the organic chemical industry through a mauve dye made from coal-tar intermediates, yet Murmann asks how Germany overtook Britain to win an 85% world market share. Part of his answer is that corporate R&D was born in the German dye firms in the 1880s. It is the clearest example of a specialty market won through organised research.

Module 12 uses Pollak to look at the fine and specialty chemicals business today: custom manufacturing, Custom synthesis (CDMO), API-for-generics, contract research, and why so much of this work has moved to India and China.

- Kent (2012), Ch 1 Recent History of the Chemical Industry 1973 to the Millennium (Aftalion) · pdf pp. 27, 31-33
- Pollak (2011), Ch 2 The Fine Chemical Industry · pdf pp. 30-35
- Murmann (2003), Ch 1 · pdf pp. 16, 51
- Wittcoff (2004), Ch 2 Chemicals from Natural Gas and Petroleum · pdf p. 86

### 5.3 Modules 13 and 14 ask whether biomass can replace part of the tree

Module 13 covers biorefineries and platform chemicals. A biorefinery, by analogy with an oil refinery, splits biomass such as starch, sugar, wood or oilseeds into several streams and turns each into fuels, chemicals and materials. Platform chemicals are bio-based building blocks, such as sugars, Lactic acid and PLA or Furfural and furanics (FDCA), from which a family of products can be made, in the way ethylene anchors its own family. The module draws on Kamm and colleagues' survey of biorefinery processes, the US Department of Energy's 2004 screening of top value-added chemicals from biomass, and the IEA Bioenergy Task 42 report.

Module 14 covers bioplastics: plastics made from biomass, plastics that biodegrade, and the overlap between the two. It compares drop-in materials such as Bio-based polyethylene and MEG, which are chemically identical to their fossil versions, with new polymers such as PLA and PHA bioplastics, and asks what they cost, how they perform and how they fit a circular economy.

This module gives you a sense of the scale these technologies face. The IEA counted just over 2 million tonnes of bioplastics production capacity in 2017, less than 1% of global plastic demand even if fully used. It also found that biomass-based ammonia equipment costs nearly seven times as much as gas-based equipment, and that routes based on electricity and biomass struggle to compete on cost in most regions. Kent's history adds a longer memory: fermentation ethanol was judged uncompetitive without subsidy at the oil prices of the 1980s. The last two modules test whether that has changed.

Data The course at a glance

| Module | Title | Central question |
|---|---|---|
| 1 | The chemical industry: what it makes and how it is organised | What are the sectors, building blocks and big shifts? |
| 2 | How a chemical process works | What happens in reactors and separators, and why? |
| 3 | Plant economics basics | How do capital and operating costs become a price? |
| 4 | Heavy inorganics | How are sulphuric acid, chlor-alkali, ammonia, phosphates and air gases made? |
| 5 | Oil and gas to C1-C4 building blocks | How do refining, cracking and synthesis gas make the building blocks? |
| 6 | Building blocks to plastics, fibres and detergents | How do monomers become polymers and surfactants? |
| 7 | Scale, capacity, feedstock, safety and sustainability | Why do cycles, accidents and emissions shape the trunk? |
| 8 | Dyes, pigments and coatings | How does colour chemistry make money? |
| 9 | Soaps, detergents and agrochemicals | How do formulated and regulated products compete? |
| 10 | Pharmaceuticals and fermentation | How are drugs and biological products made? |
| 11 | How a classic specialty market works: synthetic dyes | Why did German firms win the first science-based industry? |
| 12 | The fine and specialty chemicals business | How do custom manufacturers and specialty firms earn returns? |
| 13 | Biorefineries and platform chemicals | Can biomass feed a parallel chemical tree? |
| 14 | Bioplastics | Which bio-based plastics work, and at what cost? |

 Source: Course outline, modules 1-14

- IEA (2018), The Future of Petrochemicals · pdf pp. 13, 30-31
- Kent (2012), Ch 1 Recent History of the Chemical Industry 1973 to the Millennium (Aftalion) · pdf p. 29

### See it in the table
[Ti Titanium](https://www.materialinsights.org/commodities/titanium/)[Su Sugar](https://www.materialinsights.org/commodities/sugar/)[H2SO4 Sulphuric acid](https://www.materialinsights.org/chemicals/sulphuric_acid/)[H3PO4 Phosphoric acid](https://www.materialinsights.org/chemicals/phosphoric_acid/)[NaOH Caustic soda](https://www.materialinsights.org/chemicals/caustic_soda/)[Cl2 Chlorine](https://www.materialinsights.org/chemicals/chlorine/)[TiO2 Titanium dioxide](https://www.materialinsights.org/chemicals/titanium_dioxide/)[O2 Oxygen](https://www.materialinsights.org/chemicals/oxygen/)[N2 Nitrogen gas](https://www.materialinsights.org/chemicals/nitrogen_gas/)[Ar Argon](https://www.materialinsights.org/chemicals/argon/)[NH3 Ammonia](https://www.materialinsights.org/chemicals/ammonia/)[Ur Urea](https://www.materialinsights.org/chemicals/urea/)[C2H4 Ethylene](https://www.materialinsights.org/chemicals/ethylene/)[C3H6 Propylene](https://www.materialinsights.org/chemicals/propylene/)

### Check your understanding

Which module studies how German firms came to dominate synthetic dyes before 1914?
 Module 11 is the historical case of the synthetic dye industry from 1857 to 1914, based on Murmann.

In Brennan's frame, which module 3 builds on, a product's selling price is best seen as:
 Brennan describes price as a floor price plus a margin; for a new product the margin is large and it shrinks as competition grows.

[← Part 4: How the industry's structure and geography changed after 1973](https://www.materialinsights.org/learn/chemicals/chem-industry-map/p4/)[Mark read · Wrap-up →](https://www.materialinsights.org/learn/chemicals/chem-industry-map/review/)

## Other sections

- [Module overview](https://www.materialinsights.org/learn/chemicals/chem-industry-map/index.md)
- [What the chemical industry is and how big it is](https://www.materialinsights.org/learn/chemicals/chem-industry-map/p1/index.md)
- [The sectors and why their economics differ](https://www.materialinsights.org/learn/chemicals/chem-industry-map/p2/index.md)
- [A handful of raw materials and building blocks](https://www.materialinsights.org/learn/chemicals/chem-industry-map/p3/index.md)
- [How the industry's structure and geography changed after 1973](https://www.materialinsights.org/learn/chemicals/chem-industry-map/p4/index.md)
- [Key terms, quiz and sources](https://www.materialinsights.org/learn/chemicals/chem-industry-map/review/index.md)