The large-scale development of eastern Liaodong first requires a large amount of grain. These grains were exchanged for civilian products such as soap and liquor. But in addition to money-making civilian products, military products should also be considered. Weapons and armor are also an important part of the army's combat effectiveness.

Lelang County has a large amount of coal resources. Fushun is in Xuansu County. Shale oil can be produced.

Coal is mined first, and then the coal is used to heat and refine the ore. This is an idea of Gongsun Kang's priority in the development of minerals. Coal is easy to find, and many people in Liaodong are using this item called charcoal for heating. After arranging for some slaves to dig these shallow carboniferous mines, Gongsun Kang turned his attention to the search for oil.

Oil is the name given by Shen Kuo in the Northern Song Dynasty. In various places, it is also called stone paint, stone grease water, fierce fire oil, realgar, sulfur butter, ground fat, mud oil, stone candle, fire well oil, fire oil, Yan Yan fat and so on.

Gongsun Kang directly named it oil, and it is estimated that people in later generations will no longer mention that the named person is Shen Kuo. It's good to cross, hehe, not only can you steal poems, but you can also steal the power to name an item, it's enough to leave a name for future generations.

The Liaohe Oilfield is 6,000 meters underground, and the Daqing Oilfield is 1,300 meters underground, and it is currently occupied by the Buyeo people.

Although Northeast China was rich in oil shale and bituminous coal suitable for refining oil from liquefaction before the liberation of Northeast China, the supply of oil in Northeast China relied on the import of foreign oil in the past. The experiment of using Fushun oil shale for large-scale industrial oil refining began in 1930, and the Fushun refinery was the only shale oil plant in the world since 1941.

The appearance of oil shale is mostly brown mudstone, and its relative density is 1.4~2.7. The minerals in oil shale are often mixed evenly and finely with organic matter, which is difficult to beneficiate by general coal preparation methods. Oil shale, which contains a lot of clay minerals, tends to form distinct flakes.

Gongsun Kang asked people to collect all kinds of stones in Xuansu County, crush them one by one, heat and condense experiments, and easily found oil shale. Zhao Yun was idle, so he let Zilong take charge of refining oil shale to produce hot oil.

Large chunks of oil shale are crushed, screened, and sent to a kind of huge furnace; Heating under the condition of air isolation to decompose organic matter to produce oil and gas; The oil and gas rise through the wooden tube and then into a cooling unit, where it condenses into an oily liquid.

Shale oil is obtained by low-temperature dry distillation of oil shale, which is a brown paste at room temperature, with a pungent odor, and belongs to the paraffin base oil with high nitrogen content. Shale oil can be processed and refined into liquid fuels such as gasoline, kerosene, and diesel, which is an important unconventional oil and gas resource.

There is a surface oil field in Bohai County, Jizhou, and Dongying, Shandong Province is the location of the Shengli Oilfield in later generations, which belonged to Bohai County in the Han Dynasty. But now it is Yuan Shao who is entrenched in Bohai County. There is no way to pick it up for the time being.

There are also oil fields in Dongnae County, but the amount is small. The black oil passed through the cracks in the ground and was viscously exposed to the air. It can be taken directly with a wooden barrel.

After taking the oil, it is likewise sent to a kind of huge furnace; Heating under the condition of air isolation to decompose organic matter to produce oil and gas; The oil and gas rise through the wooden pipe and then enter a cooling device, and after cooling, it will condense into a cyan translucent liquid, which is the fierce fire oil.

Therefore, Gongsun Kang sent craftsmen to Qingzhou and ordered Zhang Liao and Yangyi to strictly protect the place where the oil was purified. It is necessary to build a wall and manage it in military camps. We do not let the production method of the fire oil leak.

The whole process is really just a layer of window paper: heating, sublimation, and re-condensation; It's the same process as making high-quality sake, and you can imitate it after watching it once.

After finishing the oil, Gongsun Kang went to "invent explosives" in one go.

Gongsun Kang asked the craftsmen of the craftsman camp to experiment with the ratio and power of explosives.

The production of black powder does not have much knowledge content.

Gongsun Kang remembered that the mantra was one nitrate, two carbon, and three sulfur. The ratio is 75:15:10, which corresponds to 15 and which corresponds to 75.

So let the craftsmen experiment with mixing in various proportions. The mixture is packed in a bamboo tube and wrapped in multiple layers of thick paper. Use twine to draw out the lead, and after igniting it, see which ratio of explosion is more powerful, and choose which recipe.

I would like to insert that Yangyi has already picked the first batch of cotton in Donglai County and found someone to spin the cotton thread. Later, the explosives will use cotton thread as a fuse.

The final result was the same as that of the afterlife. The most powerful proportions are: saltpeter accounts for 75 percent, sulfur accounts for 10 percent, charcoal for 15 percent, this is the basic configuration of modern gunpowder. However, if it is simply mixed like this, it can only be an explosive pack like black powder, and the power will not be too great.

In 1550 AD, the French invented the wet method.

First, the ingredients are soaked in water and moistened, then mixed to make a large cake, which is broken after drying or air drying, and sieved through a fine sieve, the gunpowder powder will become small granules, and then it is packed in a large barrel and constantly stirred, grinding off the corners of the particles and adding graphite for polishing.

The gunpowder produced by this method forms a relatively stable structure between the molecules, which is not easy to decompose, and the combustion space between the particles is large, and it is easy to burn evenly.

Because of the manufacturing process, this is called real modern gunpowder. The ratio of 75:1:15 (nitrate:sulfur:charcoal) was also established in the 19th century.

Although it was difficult to add graphite to polish for a while, it was still possible to grind off the granules by constantly stirring in a large vat, so Gongsun Kang got a powerful explosive.

Nitrate and sulfur are sold in pharmacies; Charcoal is also sold for charcoal production. After the ratio comes out, when it comes out for large-scale production, nitrate, sulfur, and charcoal can no longer be purchased, and if you want to reduce costs, you need to produce it yourself.

Gongsun Kang is ruled by a warlord, and he needs the secret recipe for the production of nitrate, sulfur, and charcoal, and he directly asks the merchants. Don't give? If you don't give it, you will be arrested and locked up for a few days, and you will be honest. Reason? There are excuses, such as the Huren people.

In fact, he himself knows a little. For example, if you want to mine saltpeter mines, fire nitrate and miscanthus in seawater are not the same thing. Sulphur also has natural sulphur mines.

The method of charcoal burning is also very simple, Zhang Side of later generations died when burning charcoal, and went through several heavy processes such as cutting trees, kilns, fires, kilns, bundling, and transportation.

Why is charcoal burned? In ancient times, charcoal was mainly used for smelting, copper smelting, iron smelting, and baking items. Modern charcoal is the best raw material for the production of carbon disulfide, the deep processing of charcoal to make activated carbon, the solid quenching for charburizing agent, and charcoal are the best raw materials for the production of carbon disulfide.

Besides, there's no technical content, isn't it just burning? Charcoal is not burned but dried, and the raw materials and production requirements are different depending on the use. So be experienced.

When you know dry distillation, you know the trick of charcoal burning.

For example, the wood is sawn into sections, arranged together, and the middle of each layer is covered with yellow mud to form a cylindrical shape. Only a hollow in the middle of the cylinder remains. After putting firewood in the middle and igniting it, seal it. After a few days, remove the yellow mud, and you can get a section of dark charcoal.