
Producing technical hydrogen from coal is a good option for large-scale hydrogen production or in the absence of other suitable raw materials.
From raw coal, high purity hydrogen is produced through gasification, conversion, purification, PSA, etc. units.
Description of technology
Producing technical hydrogen from coal is a good option for large-scale hydrogen production or in the absence of other suitable raw materials.
From raw coal, high purity hydrogen is produced through gasification, conversion, purification, PSA, etc. units.
Currently, the following types of coal gasification are widespread: continuous gasification with oxygen saturation on a stationary bed at atmospheric pressure, continuous pulverized coal gasification with oxygen saturation on a fluidized bed at atmospheric pressure, gasification of water and coal pulp under pressure, pulverized coal gasification under pressure
Installation scale: 5000~100000nm³/h.
Specifications
(1)Suitable for large-scale hydrogen production projects;
(2)The cost of hydrogen is lower than other methods for producing hydrogen;
(3)The investment is relatively large.
Applications
In addition to brown coal and peat with high internal water content, and coal with a calorific value of less than 22940 kJ/kg and an ash melting point higher than 1350 °C, other adhesive coals, coals with high ash content, petroleum coke and bituminous coal can be used as raw materials.
Flow diagram
Typical Results
| serial number | users | scale | raw materials | Products | technological route |
| 1 | Zhejiang Longsheng Chemical Group | 5000Nm3/h | coal | 99.99% | Coal gasification + desulfurization + conversion + PSA |
| 2 | Shandong Fangming Chemical Company Co., Ltd. | 12000Nm3/h | coal | 99.99% | Coal gasification + desulfurization + conversion + PSA |
| 3 | Zhejiang Hengyi Chemical Company | 30000Nm3/h | coal | 99.99% | Coal gasification + desulfurization + conversion + PSA |