Product Details
PERTROLCHEMICIAL INDUSTRY
ETHYLENE / EOEG UNIT
Heat pump compressor
In the debutanizer of the ethylene plant, the temperature
difference between the top and bottom of the tower is small.The
energy consumption of can be greatly reduced by using heat pump
distillation to compress the top gas and heating the tower
bottom.The screw type heat pump compressor can adapt to the
partial liquefaction in the compression process.
Refrigeration compressor
Such units are mainly used to compress methane gas in the
ethylene plant. Dry compression is adopted, the temperature is
higher, and the technical difficulty is great. The high
temperature exhaust gas can be used as the regeneration of
desiccant in the dryer.
Recovery gas compressor
At present,the main technology of EOEG is Shell and SD.The
recovery gas compressor is mainly used to replace labyrinth
compressor. It has less stages and less wearing parts,especially
suitable for larger scale EOEG.For the oxygen content in this
unit is high, liquid inject screw compressor is adopted, whose
temperature is controllable and safety is high.
PROPANE DEHYDROGENATION UNIT
Dehydrogenation tail gas compressor
The tail gas from propane dehydrogenation is rich in hydrogen,
which can be recovered by PSA.The two-stage screw compressor can
directly compress the tail gas to the pressure required by PSA.It
has few vulnerable parts, which can ensure the longterm stable
operation.
BOG compressor
This kind of unit is mainly used for flash steam recovery of
normal pressure & low temperature propane tank (or propylene
tank). The *-stage is adopted to make the temperature of
compression process controllable. At the same time, it can ensure
oil free strictly, to prevent contamination of raw materials,and
meet the requirements of UOP and other process.Compared with
labyrinth compressor,larger recovery and longer running cycle can
be reached.
C4 Isomerization Unit
The isomerization compressor is mainly used for the process gas
compression at the front of the C4 stripping tower. In the
process, the exhaust gas temperature is controlled by spraying
isomerate oil, and the pollution of the gas is prevented. The
regenerative gas compressor is mainly used for regeneration of
isomerization catalyst.The outlet gas temperature is controlled
by spraying water in the compression process. The large pressure
ratio can be achieved at a single stage to meet the pressure drop
requirement of the whole regeneration process.
Desoription gas compressor
After recovering hydrogen from propane dehydrogenation tail gas,
the remaining desorption gas can be used as good fuel after being
compressed by screw compressor.The screw compressor can adapt to
the pressure fluctuation and the dust produced at the end of the
life of the adsorbent.
Butadiene Production Unit
Butadiene compressor is a domestic project of SINOPEC major
localization equipment in ***9, and we undertake the R&D
task.In***0, our company successfully completed the design and
manufacture of the butadiene screw compressor unit in China. It
was officially put into operation in Sinopec Maoming
Petrochemical Company.
C4 Alkylation Unit
With the progress of C4 alkylation, the reaction heat will lead
to the continuous volatilization of C4 .The screw compressor is
used to directly compress and condense the volatile gas and
return it to the reactor to maintain the energy balance of the
system. The large-scale variable-frequency regulating capacity of
screw compressor can ensure that the energy consumption level of
the device decreases linearly under partial load
conditions.
ETHYLBENZENE STYRENE UNIT
Hydrogen compressor
Along with the scale expansion of Styrene plant(single),the
volume of hydrogen generated is increasing. Compare with
reciprocating compressor,screw compressor is becoming the
preferred type of hydrogen compressor.
Styrene tall gas compressor
In ***3, our company successfully developed styrene tail gas
screw compressor. It was applied to the **0 thousand tons/year
styrene plant of Changzhou Dohow Chemical Co. Ltd.. Sofar, we
have more than *0 sets of field cases.Along with the maturing of
the large screw compressor manufacturing technology,present
single unit has been able to meet the demand of **0 thousand
tons/ year styrene unit.
Aromatics Complex
The process gas is mainly H2 and C1~C3 with hard catalyst
particles, small molecular weight, and easy fluctuation of inlet
condition.
Dry gas compressor
Such units use oil-free jet screw compressor to achieve gas
pressurization. The compression process uses injection of
diethylbenzene to control the exhaust temperature, which is
suitable for the fluctuation of intake and exhaust
pressure.
Alkyl Benzene Unit
The core of this unit is the dry screw compressor, and its
content of H2 is over *0%. Compared with reciprocating
compressor, the utility model has small occupation area and can
realize long period operation.
Split Oil Separator
This device is used to extract unsaturated olefin from pyrolysis
oil, such as propylene, butene and butadiene.The screw compressor
provide different grades of cold source for the device. It is
open refrigeration unit, and the refrigerant is the product
itself, such as propylene, butylene, etc.. This unit has *-stage
compression with inter-stage gas supply and high process control
requirement.