I, the Fake Prince, Rule the World by Briquettes

Zhang Yao traveled through time and became the prince of the British Duke of Dazhao who had been living among the people for eighteen years. The problem is—— The opening scene is Death Row, with an overhead chop. Zhang Yao has no system or golden fingers. He only has chemical engineering knowledge and modern thinking in his mind. He survived by gambling with the princess and earned his first pot of gold by relying on briquettes. He started the chemical industry from scratch and built the business all the way to the court. Establish education and break the monopoly of knowledge by clans. Using technological firearms, they crushed the barbarians and made the world surrender. But his identity as the fake prince was eventually exposed...