Page 180 - Advances in bioenergy (2016)

Figure 7.11 Flow chart of GoBioGas project

Unfortunately, Range Fuel was officially closed down in late 2011 with a foreclosure sale of
its plant held on January 3, 2012. In 2012, LanzaTech NZ Ltd took over the facilities and will
use it probably with their enzymatic conversion of syngas to ethanol. 62

Large-Scale BioSNG Production (GoBiGas)

Göteborg Energi, the energy company in the western part of Sweden, has the goal to convert to
renewable energy long term. One step is to replace fossil natural gas by renewable gas. Here
much R&D on demonstration and also commercial plants on upgrading biogas to natural gas

quality was done in the past. Also, to convert wood into methane the GoBiGas project was
initiated. 63

The goal of the GoBiGas project is to produce biomethane (BioSNG) by thermal gasification
of forest residues such as branches, roots, and tops. The gasification plant is scheduled to be
built in two stages, the first stage (about 20 MWgas) is planned to be operational in 2013. The
second stage (about 80–100 MWgas) is scheduled to be in service in 2016. How and when to
implement stage 2 will be decided after an evaluation of the stage 1 plant.

The biomass is converted to a synthesis gas in the gasification plant. This so-called synthesis
gas is purified and then upgraded in a methanation plant to BioSNG with a quality comparable
with natural gas to enable the two types of gases to be mixed in the gas network.

As gasifier, a dual fluidized bed system, based on the principle of the Güssing biomass CHP