Zhenhai Petrochemical Jianan Engineering Co.,Ltd.

About Us

Focus on R&D and manufacturing of spiral tube heat exchanger
Constantly committed to creating value for our clients
Continuously innovating, seeking excellence and pushing technology to the boundaries

Company Profile

Zhenhai Petrochemical Jianan Engineering Co., Ltd.,（ZPJE） is a former subsidiary of Sinopec Zhenhai Refining & Chemical Company ...

How We Work

ZPJE has delivered nearly 1450 exchangers, with units operating for more than 20 years. The complete installed base ...

Our History

In 1984, ZPJE started its first R&D project of STHE, and after 15 years of intensive development, the first spiral tube heat exchanger ...

Product Features

STHE Characteristics

High Heat Transfer Effciency
Low Pressure Drop
Compact Design
Mechanical Robustness
Low Fouling

How It Works

Product Description
On the Shell Side
On the Tube Side

Customer Benefits

Save on Opex
Save on Capex

Services

Site Installation Supervision
Commissioning & Start-up Supervision
Operation Data Tracking
Trouble Shooting
Cleaning Services

STHE Characteristics

High Heat Transfer Effciency
Low Pressure Drop
Compact Design
Mechanical Robustness
Low Fouling

How It Works

Product Description
On the Shell Side
On the Tube Side

Customer Benefits

Save on Opex
Save on Capex

Services

Site Installation Supervision
Commissioning & Start-up Supervision
Operation Data Tracking
Trouble Shooting
Cleaning Services



Applications

Crude Oil Refineries Petrochemicals Fertilizer Others

CCR UNITS

A. Typical CCR PFD

B. STHE as Feed/Effluent in CCR:

85 references

66 in operation

Total installed capacity >125 MMTA

>80,000 days of cumulative operation

12 years of operation in CCR

C. The Main Value of STHE for CCR:

High efficiency allowing hot approach temperature of less than 30°C

High resistance to pressure and temperature fluctuations

Long-term stable operation

Easily mechanically and chemically cleanable.

STHE technology in catalytic reforming

HDT UNITS

A. Typical HDT PFD

B. STHE in Hydrotreatment:

163 references

140 in operation

Total installed capacity >85 MMTA

>75,000 days of cumulative operation

15 years of operation in hydrotreatment

C. The Main Value of STHE for HDT:

High efficiency allowing hot approach temperature of less than 10°C

large heat transfer area reducing plot area

High resistance to pressure and temperature fluctuations

Long-term stable operation

Easily mechanically and chemically cleanable.

STHE technology in Hydrotreatment

PDH UNITS

A. Typical PDH PFD

B. STHE as Feed/Effluent in PDH:

42 references

11 in operation

Total installed capacity >13 MMTA

>7,000 days of cumulative operation

5 years of operation in PDH unit

C. The Main Value of STHE for PDH:

High efficiency allowing hot approach temperature of less than 25°C

High resistance to pressure and temperature fluctuations

Long-term stable operation

Easily mechanically and chemically cleanable.

STHE technology in PDH

Customer Feedback

What People Say About ZPJE?

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

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Hydrotreatment Unit (2 MMTA) Case 1

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

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Reforming Unit (2.2 MMTA) Case 2

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

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Reforming Unit (2.4 MMTA) Case 3

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

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Aromatics Complex Unit (2.0MMTA) Case 4

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

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PDH Unit (0.6MMTA) Case 5