DistributedSNG - Decentralised conversion of biomass in Substitute Natural Gas [Original in Deutsch: Dezentrale Konversion von Biomasse in Substitute Natural Gas

  • Karl, Jürgen, (Principal Investigator (PI))

Project: Research project

Description

The production of Substitute Natural Gas (SNG) and the methanation of biogenic synthesis gas is a key
technology in order to increase the contribution of renewable energies to the energy economy and, at the
same time, to decrease the dependency from fossil natural gas sources.
The decentralization of gas production and utilization enable new possibilities of energy and heat
production from biomass.
Goal of the project is the research and development of asolid biomass conversion system (wood, lignin
biomass) into SNG for decentralized plants in a power range of O.5+2MW wh ich allow a high efficiency
and flexibility in term of energy and heat production.
In few words there are 4 central problems to solve:
1. The efficient and convenient thermal integration of the overall process and the specific process
step
2. The particle (including alkali) deposition at temperatures> 400°C
3. Sulfur deposition (H2S and organic sulfuric components) at temperatures> 400°C
4. Catalytic methanation of the clean syngas
Project progress
The planned goal of overall process modeling as weil as the parameters variation is achieved.
The heat of methanation will be used for vapor generation.
Different filter materials, on the base of their ability of particle deposit, will be tested.
About selective conversion of tar and higher hydrocarbons using catalytic reforming, 3 catalysts will be
tested and selected after lab measurement.
Positive results have been obtained on the reduction of thiophene on the tar reforming catalyst as weil as
for the HDS catalyzer for the conversion of organic sulfur bounds.
The impact of the tar and sulfurs on the degradation behavior as weil as the necessary time of residence
of the used catalyzer will be studied.
The methanation reactor in pilot-scale has been built up. The process control has been set up.
At the moment possible locations are evaluated. The discussion whether the level of 6 bar for storage
could be used, will be managed.
StatusFinished
Effective start/end date1/09/0930/08/12