Issue 24/2014 - Innovative coal-to-gas process for two-stage gasification

Two-stage gasification innovative coal-to-gas process

In view of China's cheap and abundant crushed coal resources, the Institute of Process Engineering of the Chinese Academy of Sciences integrates fluidized bed and fixed bed technology, gives full play to their respective gasification advantages, and proposes a new two-stage gasification process
.
A few days ago, the small test work of the new process has been completed, and the small test results will provide technical support
for the amplification and industrialization of the technology.

China's industrial gas is mainly produced
by fixed-bed gasification of high-quality lump coal.
The technology is relatively backward, and there are problems such as
small generation scale, poor applicability of raw materials, and high tar content in product gas.
The existing two-stage gasification process is mainly used to treat biomass, which can effectively remove tar, but there are problems such as
difficult to scale up and difficult to use for crushed coal.

(Meng Zhang)