Coal Gasification Engineering by CASE Group

It is known to all that coal is cheap and best source of coal gas- a flammable gaseous fuel used for various industrial applications. The process of Coal Gasification is to combust the Coal in a controlled oxygen environment. The resultant is the generation of Coal Gas whose primary constituent is CO instead of CO2. Coal gas is used extensively to replace high value fuels for thermal applications. This Gas can also be used to make fertilizers and Chemicals. 

CASE Group pioneers in 'GASIFICATION' sector. Considering the diverse industrial applications along with economic and environmental constraints, CASE brings a series of coal gasifier types. The gasifiers are primarily used for thermal applications.

Take a snippet of coal gasifier types suitable to meet the users’ demand.

CASE Hot Gasifier: This is the Basic type of Gasifier. This Gasifier Converts Coal into coal gas and the Gas output temperature is over 450ºC and the pressure is about 150mmWC

CASE Cold Pyrolysis Gasifier: These Gasifiers are one generation above Hot Gasifiers. In this technology, Gasifier gas can be scrubbed of the TAR and Clean cold Gas can be boosted to any pressure as per user’s requirements. The phenol water is 100% recirculated back into the system. These Gasifiers are fully automatic and are preferably used where burner level Automation is desired like in Automatic Steel Furnaces, Pellet Plants, Glass Plants, Aluminum Calciners etc

Circulating Fluidized Bed Gasifiers: These Gasifiers are the third-generation gasifiers where coal fines of 0mm-10mm size can be used for gasification. The calorific value of gas is about 1300Kcal/Nm3 and can be increased to about 1800Kcal/Nm3 by adding oxygen in the air which is used as gasifying agent.

CASE Entrained Flow Coal Gasifiers: These gasifiers are fourth-Generation Coal Gasifiers where the technology is better than Circulating bed coal gasifiers. In this technology, High ash coal can be used of size less than 100 microns

For detailed information, please feel free to contact our coal gasifier manufacturer and technologist. 

India Achieve Collaboration with South Africa on Coal Gas Technology

India would seek to collaborate with the South African government in underground coal gasification technologies and to develop projects in India through suitable joint ventures (JVs).

According to an official in India’s Coal Ministry the request for bilateral India-South Africa cooperation would be a follow-up of a new policy for underground coal gasification, which was likely to be announced shortly.

The official said that a comprehensive policy encompassing all aspects of underground coal gasification, including  technology availability, the assessment of appropriate reserves, project implementation and the pricing of gas, had assumed urgency in view of India’s extremely tardy performance in this energy subsector and the shortage of coal available for power generation, despite the country’s huge coal reserves.

The South African government’s facilitation would be sought through either government-to-government agreements or technology and project JVs between companies, particularly for gasification of coal below depths of 300 m, the official said.

India’s first coal gasification project was initiated six years ago in the western Indian province of Gujarat as a JV between oil exploration and production major ONGC and Gujarat Industries and Power Corporation. However, the project has failed to take off.

It was pointed out that with 350-billion tons of potential coal reserves, only one-third was mineable and not one coal gasification project had been successfully implemented in India, while China had over 40 coal gasification plans running and had even moved to the next stage of converting coal to diesel.

Coal Gasification Policy Needed Before Blocks Are Allocated

The formulation of a coal gasification policy was a necessary precondition to the allocation of coal blocks, particularly against the backdrop of $33-billion in revenue charges against the exchequer brought by the national auditor, the Comptroller and Auditor General, in the previous coal block allocations.

The Coal Ministry estimates that even if 5% of India’s unmineable coal reserves were to be successfully exploited for gasification, it could yield three-trillion cubic metres of gas equivalent.

While the appropriate technology was not available within the country, a pilot project has been successfully implemented, which had driven the government’s attempt to seek collaborations with countries like South Africa, an official said.

Source: http://www.miningweekly.com/article/india-seeks-collaboration-with-sa-for-coal-gasification-technology-2013-02-26