项目描述

Zinc oxide desulfurizer for hydrogen sulfide removal with ASTM standard, DS2 series

Zinc oxide desulfurizer, Biogas desulfurizer, H2S removal, DS2 series

Usage and Features
The feed gas can be natural gas, petroleum gas, light oil gas, synthetic gas, coal gas, semi-water gas and other various gases. Usage of type DS2 zinc oxide desulfurizer at a low temperature can guarantee high purity of gases containing large amount of inorganic sulfur(1-2 g/m3) and small simple organic sulfur(such as COS,CS2). It’s suitable to remove hydrogen sulfide both at high(350-450C and low temperatures(30-350C), while it’s better for high temperature.

Zinc oxide desulfurizer can also be used as a protective agent for synthesizing carbinol, hypoallergenic and methanation catalyst.

The usage:

  1. Serve as raw material of fine desulfurization when using natural gas or light oil vapor gas conversion  makes hydrogen or ammonia
  2. Serve as conversion catalyst to protect methane before conversion catalyst when coke-oven gas makes ammonia
  3. Serve as low transformation protectant before copper low temperature conversion catalyst when using natural gas or naphtha as raw material makes ammonia or hydrogen
  4. Other techniques for fine desulfurization

Features of chemical equation
ZnO+H2S=ZnS+H2O
CS2+4H2=2H2S+CH4
COS+H2=H2S+CO
COS+ZnO=ZnS+CO2
Package:25 kgs woven bag, or plastic bucket

Proposed Application Direction:
Temperature: 30~450C, renewable material
Pressure: normal pressure to 0.1-4.0 Mpa
H2S content of air inflow:3000 ppm
H2S content of air outflow:20 ppm
Humidity: relative humidity 20~100%, water content in bed is strictly prohibited
Bed layer height and tower diameter ratio: ≥2

Physical properties

   Type  DS2-A DS2-B DS2-C
Appearance White cylindrical particles Gray cylindrical particles Gray cylindrical particles
Size, mm Diam:4-5mm, Length:5-15 mm Diam:4-5mm, Length:5-15 mm Diam:4-5mm, Length:5-15 mm
Bulk density,kg/l 0.85-0.95 0.9-1.1 0.9-1.1
Strength,N/cm 35 min 30 min 30 min
BET,m 2 /g 60 min 100 min 100 min
ZnO,% 80 min 85 min 85 min

.Using condition

Type  DS2-A  DS2-B  DS2-C
Temperature Room temper-200C Room temper-450C 430-800C
Pressure, Mpa 5.0 5.0 5.0
Airspeed 500-1000/h 500-1000/h 500-1000/h
Sulfur species in material H2S H2S\COS\CS2 H2S\COS\CS2
Total sulfur in material ,ppm ≤10 ≤10 ≤10
Sulfur capacity, % 10-15 15-25 15-25
Desulfurization precision,ppm ≤0.05 ≤0.03 ≤0.03