Zhenhai Petrochemical Jianan Engineering Co.,Ltd.

Case 1

Hydrotreatment Unit (2 MMTA)

The high efficiency STHE technology used in our 2MMTA DHT unit allows us to use the fired heater only during the startup phases. During normal operations, the STHE is so efficient that the furnace can be shut down, saving dramatically the consumption of fuel oil. This innovative design

Case 2

Reforming Unit (2.2 MMTA)

The 2MT/a DHT unit of our company which adopts efficient STHE technology realizes the goal that the furnace needs to be put into operation only at the initial stage of startup and there is no need to put the heat furnace into operation during normal operation.This innovative design reduces the

Case 3

Reforming Unit (2.4 MMTA)

The combined feed and effluent heat exchanger in our 2.4 MMTA CCR unit was replaced with spiral tube heat exchanger (STHE) designed and manufactured by ZPJE in November 2019. Each production index of the unit has been improved significantly since this STHE was put into use, with its total pressure d

Case 4

Aromatics Complex Unit (2.0MMTA)

Feed and effluent heat exchangers in 3.2 MMTA CCR unit, 3.2 MMTA disproportionation unit and 3.6 MMTA isomerization unit were replaced with spiral tube heat exchangers (STHEs) designed and manufactured by ZPJE in October 2017. After that, the hot approach temperature (HAT) of feed and effluent heat

Case 5

PDH Unit (0.6MMTA)

The feed/effluent heat exchanger of the reactor of our 0.6MMTA PDH unit was replaced with the STHE designed and manufactured by ZPJE in August 2017. Since the replacement, this STHE has brought considerable economic benefits to our company:The HAT has been reduced from the original 108℃ to 25℃, sa