Issue 27/2013 - Calibration of the first liquid phase cyclic hydrogenation plant completed

The first liquid phase circulating hydrogenation unit was calibrated

The first set of 2.
6 million tons / year diesel liquid phase cycle hydrogenation industrial plant with the world's advanced level in China has recently completed the full load calibration in Shijiazhuang Refining, and the indicators of the device have reached the expected goals, fully capable of producing national V
diesel.

This set of equipment opened the whole process on December 23, 2011, and produced qualified products
.
This technology can reduce the sulfur content in diesel products by more than 80% compared with the current standard sulfur content, which can effectively reduce the pollution to the atmosphere; Compared with traditional hydrogenation technology, it can also reduce the energy consumption of the plant by more than
40%.

The purpose of this calibration is to comprehensively examine the performance of the device after nearly 7,000 hours of cumulative operation, including reaction conditions, product properties, chemical hydrogen consumption, product distribution and energy consumption
of the device.
The common cycle ratio is 2.
0 (China IV.
, China V) and cycle ratio 1.
5 (China V) and other stages, and through the data comparison of each stage, the influence of different cycle ratios on the material balance, process hydrogen consumption and energy consumption of the device when producing China V diesel is investigated, and the technical feasibility of producing ultra-low sulfur diesel and the optimization method
of process operating conditions are explored.
This calibration provides a basis for the optimization of production and technical transformation of the plant in the future, and accumulates technical experience
.
(Wang Rui)