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China to be Site of First Commercial Implementation of TRIG Coal Gasifier

Beijing Guoneng Yinghui Clean Energy Engineering Co., Ltd. (Beijing Guoneng) has awarded KBR a contract to provide licensing, engineering services and proprietary equipment for the implementation of KBR’s and Southern Company’s Transport Integrated Gasification technology (TRIG) at a power plant operated by Dongguan Tianming Electric Power Co., Ltd. (Dongguan TMEP) in Guandong Province, Peoples Republic of China.

The contract award marks China as the site for the first worldwide commercial implementation of the TRIG technology with the goal of producing low-emission, coal-based electricity. TRIG coal gasification technology was co-developed developed by Southern Company, KBR Inc., and others including the US Department of Energy (DOE), at the DOE’s research facility in Wilsonville, Ala., that is managed and operated by Southern Company.

IGCC
IGCC plants use two power cycles, extracting more electricity from a tonne of coal.
Syngas produced by coal gasification is used to generate electricity in a gas turbine. The exhaust gas from the turbine is the used to heat water, producing steam to generate additional electricity from a steam turbine.
Igcc
Source: NETL. Click to enlarge.

At the Dongguan TMEP facility, TRIG technology will be added to an existing gas turbine combined cycle plant so that it can use synthetic gas from coal as its fuel for generating electricity, rather than fuel oil.

The 120-megawatt Dongguan TMEP plant, expected to begin operation in 2011, would demonstrate an example of advanced US IGCC (integrated gasification combined cycle) technology that is being developed in partnership between the DOE and industry. This IGCC technology is compatible with carbon capture, and its deployment in China is a step toward positioning IGCC for future integration with carbon capture technology.

Southern Company subsidiary Mississippi Power currently is seeking regulatory approval to build a 582-megawatt plant using TRIG technology in Kemper County, Miss. That plant would include 65% carbon capture and sequestration.

TRIG. TRIG is an advanced gasification process technology that enables the economic utilization of inexpensive, low grade feedstock such as lignite coal, sub-bituminous coal, and high ash coal. These coal reserves might otherwise remain uneconomical sources due to high moisture and ash contents.

Trig
TRIG gasifier. Click to enlarge.

The TRIG gasifier, derived from KBR’s fluid catalytic cracking (FCC) process, is an advanced pressurized circulating fluidized bed gasifier that operates at moderate temperatures (1,500 – 1,950 °F). TRIG is designed to operate at high solids circulation rates and gas velocities, resulting in higher throughput, carbon conversion and efficiency.

Low-rank coals—which typically have high ash and/or moisture content—account for roughly half of the worldwide coal assets. Since the gasifier uses a dry feed and does not melt the ash in the feedstock, it is particularly well-suited for these lower-cost feedstocks. Unlike other gasifiers, TRIG process technology was developed for both IGCC (Integrated Gasification Combined Cycle) power generation and chemicals/ fuels production.

For power generation, the system will be configured using a cost-efficient air-blown design that eliminates oxygen plant; however, it operates equally well in the oxygen-blown mode for chemicals and fuels production and polygeneration applications.

KBR has also developed proprietary process schemes to convert syngas to ammonia, methanol, substitute natural gas (SNG), and Fischer-Tropsch derived transportation fuels.

The 120MW Dongguan IGCC Power Plant is the first phase of the total 920MW Sun State IGCC Power Project developed by Beijing Guoneng. The second phase will be an 800MW IGCC Power Plant, estimated to be completed by 2012.

Comments

HarveyD

Surprised to learn that this new US technology is not used in power hungry USA but in China.

Why not use that technology locally and convert the most polluting 400+ USA coal power plants to produce the electricity, gas and liquid fuels so badly needed?

What is USA waiting for?

Mannstein

HarveyD wrote:
'Why not use that technology locally and convert the most polluting 400+ USA coal power plants to produce the electricity, gas, and liquid fuels so badly?'

Because it would take years to get by the roadblocks thrown up by our tree huggers and eco freaks.

Mannstein

HarveyD wrote:
'Why not use that technology locally and convert the most polluting 400+ USA coal power plants to produce the electricity, gas, and liquid fuels so badly?'

Because it would take years to get by the roadblocks thrown up by our tree huggers and eco freaks.

Henry Gibson

China has been building many coalfired power plants every year and need even more power to supply power to the jobs that the US has exported to China. The US needs no more power because the factories and jobs have moved to China.

California would not buy the power generated from this or any other type of coal fired plant. California cities decided not to build the third approved and planned unit of the Intermountain power project because it used coal even though it was in Utah.

The power companies created by ENRON and deregulation want to continue their enormous profits and buy Colorado or Columbia River power cheaply from the US government and sell it expensively to their captive users.

A variant of this system was invented by Livio Dante Porta for steam locomotives. It was called the gas producer combustion system. It made it possible to use very bad coal in very powerful locomotives at high efficiency. It did not use a gas turbine but burned the gas in a steam boiler. He also developed a system to use the worst quality water in the boilers and still have them last clean and pure for ten years or more with few repairs.

Similar small systems, to the locomotives, using turbines to generate electricity could be built at every coal mine to burn coal that is too expensive to ship. High efficiency is not needed if the fuel is cheap. Perhaps China will invent such systems for their many mines. But they did knowingly ignore Porta's systems for their locomotives because they wanted to appear modern and use diesels at greater cost. ..HG..

kelly

"Because it would take years to get by the roadblocks thrown up by our tree huggers and eco freaks."

Most scientists claim those roadblocks could be the margins that keep us and future generations alive.

HarveyD

Mannstein:

Who can be against reducing GHG and fine particules from existing power plants by 60+ % (using a local technology) ?

Currently, our power plants pollute almost as much as all the vehicles on the roads. It would be wise to work on both major GHG sources at the same time.

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