project profile
The certain CO., Ltd. (hereinafter referred to as party A) and Shandong Xunda chemical group CO., Ltd. (hereinafter referred to as party B) sign this contract through careful negotiation according to the supplement and relevant things for loading catalyst and ceramic ball of 2 million t/year P-Xylene project of second-phase project and 2# 2.5 million t/year naphtha hydrogenation unit & liquefied gas desulfurization unit & refining desulfurization tower (T-172).
Project name
2 million t/year P-Xylene project of the second-phase project.
2# 2.5 million t/year naphtha hydrogenation unit and natural gas desulfurization unit.
Designed scale
Treatment quantity of natural gas is 25000kg/h.
Start time/year is 8400hours, inspect once every 4 years.
Operating elasticity is 60~110%.
performance guarantee
Refining desulfurizer performance should satisfy the following processing requirements:
Natural gas flow of inlet refining desulfurization tower: 24911.6kg/h; molecular weight: 55.8; operating pressure: 1.45 MPa (G); operating temperature: 40℃; H2S content in natural gas: 5~10ppm (wt).
Natural gas quality requirements after refining desulfurization: H2S ≤1ppm (wt), copper flat corrosion ≤one-stage.
|
Impurity type |
Unit |
Date before refining |
Date after refining |
|
H2S |
ppm wt |
5~10 |
≤1 Copper plate corrosion ≤one-stage |
performance assessment
Performance assessment should be performed in 6 months after start, if it exceeds this period, the assessment will be considered qualified.
Performance assessment time is continuous 72hours, including 110% loading operation for 6 hours, assessment projects are the performance guaranteed value. Both parties confirm the assessment scheme before the previous month. After the performance assessment is qualified, party A notices party B by writing.
If the performance assessment could not reach the performance guaranteed indexes, both parties will work hard to improve. If it is the reason of party B, party B is responsible for relevant responsibility and freely designs it, provides qualified refining desulfurizer until it confirms to requirements. If the product after improvement also couldn't reach the performance guaranteed value, party B will compensate for it according to relevant rules of commercial contract.
specification and performance indexes
The picture is inert ceramic ball
XDS-2 Fe2O3 desulfurizer
|
Quality indexes |
Operating conditions and purification indexes |
||
|
Appearance |
Brown strip |
Operating temperature, ℃ |
-10~150 |
|
Specification, mm |
Φ (4~6) × (5~10) |
Operating pressure, MPa |
Normal pressure~2.0 |
|
Bulk density, kg/L |
0.80~1.00 |
Gas space velocity, h-1 |
≤2000 |
|
Specific surface area, m2/g |
50~100 |
Height-to-diameter ratio, L/D |
≥3 |
|
Compressive strength, N/cm |
≥50 |
H2S content in raw material, mg/m3 |
≤100 |
|
Penetrating sulfur capacity, %(m/m) |
≥30 |
H2S content at outlet, mg/m3 |
≤1 |
Inert ceramic ball
|
Project |
Technical indexes |
|
|
Chemical composition, % |
Al2O3 |
15~95 |
|
Al2O3+SiO2 |
≥92 |
|
|
Fe2O3 |
≤1 |
|
|
Water absorption rate, % |
≤5 |
|
|
Acid resistance, % |
≥98 |
|
|
Alkali resistance, % |
≥85 |
|
|
Temperature sudden change resistance, ℃ |
≥500 |
|
|
The highest heat-resistant temperature, ℃ |
1500 |
|
|
Compressive strength, KN/granule |
φ6 mm: ≥0.80 φ10 mm: ≥1.90 |
|
|
Bulk density, kg/m3 |
≥1800 |
|
package
The desulfurizer purchased in this contract is packaged with tons bag (lined with plastic bag), ceramic ball is packaged with woven bag (25kg/bag); use after arrival.
Each bag should have original place, batch number and weight.
