Kunlun Engineering General Contractor Guangdong Petrochemical Aromatics Complex

On July 30, Guangdong Petrochemical Aromatics Complex, which was contracted by China Kunlun Engineering Co.
, Ltd.
, was successfully handed over
.
At the critical moment when the Guangdong Petrochemical refining and chemical integration project is fully prepared for start-up, the world's largest single-line 2.
6 million t/a aromatics complex has been handed in, marking the completion of the six joint main projects, which is a good way for refining and chemical integration.
It has laid a solid foundation for the continuous operation of the upstream and downstream units of the chemical project
.

The aromatics complex is one of the landmark units of the Guangdong Petrochemical refining and chemical integration project, and it is also one of the "four key" paths of the refining and chemical integration project
.
The 2.
6 million tons/year aromatics complex adopts the latest light desorbent-type adsorption separation, dealkylation-type isomerization, high-heavy aromatics proportion disproportionation and transalkylation processes
.
The unit consists of disproportionation (3.
96 million tons/year), benzene/toluene fractionation (4.
58 million tons/year), adsorption separation (11.
93 million tons/year), isomerization (9.
53 million tons/year), xylene fractionation (15.
65 million tons/year) ton/year), aromatics extraction (1.
22 million tons/year) 6 units
.

The raw material of the aromatics complex unit is reformed depentanized oil, and the chemical industry zone comes to hydrogenate gasoline and benzene/toluene materials
.
The products are p-xylene, benzene, crude toluene, raffinate, heavy aromatics, hydrogen-rich, ethane-rich light gas,
etc.
The design scale of the unit is 2.
6 million tons of paraxylene per year, the annual operation time is 8400 hours, the designed operation flexibility is 60-110%, of which the aromatics extraction is 60-120%, and the energy consumption is 182.
2kg standard oil/t paraxylene , the overall process technology and energy consumption are at the world advanced level
.

The device adopts a joint arrangement, covers an area of ​​95,680 square meters, and consists of four main units: aromatic hydrocarbon joint device, six joint cabinet rooms, six joint substations and 6# oily sewage pretreatment station, with a total of 526 sets of equipment
.
Among them, there are 7 thousand-ton equipments and 12 100-ton equipments, and the adsorption tower of the adsorption separation unit is the largest of its kind in the world
.

During the construction of the project, the Kunlun Engineering Project Department vigorously promoted the "six modernizations" of standardized design, large-scale procurement, factory prefabrication, modular construction, digital delivery, and information management
.
Kunlun Engineering has set up a design team of up to 150 people, adhered to the scientific and rigorous design concept, comprehensively carried out standardized design, vigorously promoted digital delivery, and completed more than 30,000 drawings on schedule
.
Purchasing adheres to the strategy of "promoting both ends with procurement", and adopts a "full-time close-up" expediting delivery, which truly achieves a seamless connection between order placement, delivery expediting, inspection, arrival and delivery, ensuring the supply of on-site materials
.

The pile foundation construction of the project started on April 28, 2020, and was completed on July 15.
The highest record of pile sinking in a single month was 2,400, setting a record for the highest pile sinking of the refining and chemical integration project; the largest single volume of Guangdong Petrochemical on October 9, 2020 The foundation of the raffinate tower began to be constructed.
The construction team strictly deployed and worked hard to complete the successful pouring of Guangdong Petrochemical's largest single volume of 4,411 cubic meters of concrete in 25 days.
On September 15, 2021, the foundation construction of all main equipment was completed
.

The large-scale hoisting of the aromatic hydrocarbon plant is all "dressed and hated", and the tower lights are turned on
.
Among them, the preparatory work for the hoisting of the raffinate tower was completed in 29 days, with a hoisting weight of 4,606 tons, which is the largest single-weight equipment in Asia.
The 5,000-ton gantry crane main crane and the 4,000-ton crawler crane were used to complete the hoisting process with the hydraulic lifting method of tail-lifting.
followed by the realization of the large equipment A8 stripper, 2# extraction liquid tower and reformate separation tower for 7 days and 3 lifts, and benzene tower and 2 adsorption towers for 3 days and 3 lifts, creating a domestic production of 4,000 tons.
Class new hoisting records
.

In the next step, the Aromatics Project Department of Guangdong Petrochemical of Kunlun Engineering will complete all final sales as soon as possible, and cooperate with the owner to carry out joint commissioning, commissioning commissioning and data filing, and strive for early start, early commissioning of aromatics plants, and early results
.