1.Performance feature
and purpose
Against the
disqualification of liquefied gas in the refinery and the corrosion testing of
naphtha copper sheet, LYT—109 composite oxide fine desulfurizer has been
developed in our company. It has following features:
(1) High desulfurization efficiency: When H2S≤1000PPm in the
inlet, H2S≤0.1PPm in the outlet.
(2)
Fast reacting speed: The LPG desulfurization test shows that the copper sheet
corrosion of liquefied gas could be still reduced to 0~1 grade from 3~4 grade
under the condition of liquid airspeed up to 20h-1.
(3) Large capacity of working sulfur: The sulfur capacity is over
20% in a one-time fine H2S desulfurization.
(4) High density and fine water resistance: The density had not
been changed after testing with the fast pressurization and pressure relief for
100 times under the pressure 12Mpa and not pulverized after 24-hour being boiled
and 30-day being immersed.
(5) Wide use
range: It can be used under the aerobic or anaerobic conditions at temperature
0~90℃.
The fine desulfurizer is
applicable in the H2S fine desulfurization and elemental sulfur for light
hydrocarbon, petroleum liquid gas, naphtha, gasoline, coal oil and diesel and
other various oils to solve the problem of copper sheet corrosion thoroughly,
and used with COS hydrolyst to be up to H2S+COS<0.1PPm.
2.Principle of
desulfurization
MO+H2S=MS+H2O,
M refers to metal.
It will produce
stable sulfide by the reactions of H2S or elemental sulfur and active metallic
oxide for the purpose of desulfurization.
3.Main physical performance and quality index
Table 1 Main physical & chemical performance index
for LYT—109 fine desulfurizer at normal temperature
Appearance |
Brown bars |
Specific area, m2/g |
50~100 |
Granularity (mm) |
∮(3~5)×(3~15) |
Pressure intensity, N/cm |
≥40 |
Chemical components |
ZnO, Fe2O3, NiO, |
Ratio of pore volume, ml/g |
0.25~0.45 |
Bulk density, kg/l |
0.75±0.1 |
Voidage |
0.4 |
Table 2 Main technological index of
LYT—109 fine desulfurizer at normal temperature
Density, N/cm |
≥40 |
H2S sulfur capacity, Wt% |
≥20 |
4. Normal conditions of operation and
application
Liquid airspeed:
0.5~5h-1
Temperature: 0~90℃
Pressure: Normal pressure~8.0Mpa
High-diameter ratio: 3~5
5.Package, transportation and storage
(1) The fine desulfurizer is put
into the plastic woven bags (fiber cans) with inner plastic bags and sealed bag
mouths after being sieved with 25~50L for each bag.
(2) The packed products should be put into the dry storehouses and
forbidden to be affected with damp and pollution.
(3) It is forbidden to toss the products and must have rainproof
facility to avoid fine desulfurizer be affected with damp during transport.
(4) The period of validity is 2 years from
the finished date of products. It should be retested after 2 years and qualified
rear can use.