Issue 11/2014 - JX energy-saving technology transforms traditional urea processes

JX energy-saving technology transforms the traditional urea process

Compared with the traditional aqueous solution full-cycle process, JX energy-saving urea technology can save 300 kg of steam, 60 tons of circulating water, 15 kWh of electricity, and 10 kg
of ammonia consumption.
China's annual urea production capacity of about 70 million tons / year, of which 40% is aqueous solution full cycle method, if this 40% of the production capacity is transformed by JX energy-saving urea production technology, it is estimated that the annual production cost can be saved 2.
5 billion yuan, the standard coal can be saved 2.
275 million tons, and the carbon dioxide emission reduction is 6.
142 million tons
.

The current urea production process is mainly divided into two types: gas extraction method and water solution full circulation method, and the gas extraction method is mainly
CO2 gas stripping.
The gas extraction method has advanced technology and low energy consumption, but the investment is high, the construction period is long, the equipment corrosion is serious, and the CO2 gas extraction method has no independent intellectual property rights, and key equipment and special materials need to be imported
from abroad.
Although the aqueous solution full cycle method has low investment, it generally has problems such as
small scale, high energy consumption and large pollution.
For decades, about 50% of China's urea production capacity is the aqueous solution full cycle method
.

(Ho Chi Minh)