Coal gasification is recognized as the core technology of clean coal utilization that exhibits significant advantages in hydrogenrich syngas production and CO2 emission reduction. This review briefly discusses the recent research progress on various coal gasification techniques, including conventional coal gasification (fixed bed, fluidized bed, and entrained bed gasification) and relatively ...
A process named OLGA (an acronym for the oilbased gas washer in Dutch) has been recently developed by the Energy Research Centre of the Netherlands for warm gas tar cleaning (Rueda and Helsen, 2019). This process aims to combine the advantages of hot gas cleanup (HGC) and cold gas cleanup (CGC) system without taking their disadvantages.
Despite the increasing need for chemicals and energy, the scenario in which fossil feedstocks can be completely replaced by renewables is currently unrealistic. Thus, the combination of biomass and nonrenewable matrixbased (, coal) technologies could provide a greener way toward the partial substitution of traditional fuels. The hydrogasification of carbonaceous feedstocks (coal and ...
In industrial chemistry, coal gasification is the process of producing syngas—a mixture consisting primarily of carbon monoxide (CO), hydrogen (H 2), carbon dioxide (CO 2), methane (CH 4), and water vapour (H 2 O)—from coal and water, air and/or oxygen.. Historically, coal was gasified to produce coal gas, also known as "town gas".Coal gas is combustible and was used for heating and ...
Underground Coal Gasification (UCG) is one such system. This paper reviews the importance of clean energy production, the UCG processes, conditions for operation of UCG, gas clean up procedure and ...
Swadesh Chaulya is a scientist at CSIRCentral Institute of Mining and Fuel Research (CSIRCIMFR), Dhanbad, India. His fields of research include design and development of monitoring, control and automation systems for mines and hazardous areas; geotechnical and environmental studies; and application of wireless communication technologies in ...
Beneficiation of noncoking coal is gaining ground in India. It not only reduces the volume of inert content to be transported to the power plant and also lowers the wear in the boiler houses. For special applications such as the fuel for integrated gasification combined cycle plant (IGCC), the ash content in the coal should preferably be below 15 %. Indian coals are characterized by high ...
To undertake basic and applied research in the area of gasification of coal, biomass, petcoke towards development of suitable gasification technology and selection criterion visàvis utilization strategy along with syngas utilization towards different applications including methanol and chemicals. ... Cogasification of coal and biomass, CSIR ...
article{osti_, title = {A new approach of reduction of carbon dioxide emission and optimal use of carbon and hydrogen content for the desired syngas production from coal}, author = {Lu, Wenyang and Cao, Qingxi and Xu, Bang and Adidharma, Hertanto and Gasem, Khaled and Argyle, Morris and Zhang, Fan and Zhang, Yulong and Fan, Maohong}, abstractNote = {We report this research is designed ...
The different steps of gasification process is simulated in Aspen Plus by taking the proximate and ultimate analysis data for the three different coal samples as shown in Table 1 and simulating them at different operating conditions as shown in Table entire gasification process is divided into four sections in Aspen Plus simulation which are coal decomposition section, volatile reaction ...
The article presents an experimental laboratory setup used for the empirical determination of the gasification of coal samples in the form of solid rock, cut out in the form of a cylinder. An experimental laboratory set enabled a series of experiments carried out at 700 °C with steam as the gasification agent. The samples were prepared from the coal seam, the use of which can be planned in ...
The entrainedbed coal gasification process is the cleanest and most efficient coal gasification technology (Fan 2013; Liu et al. 2010; Wang 2014). At present, the entrainedbed coal gasification process is widely used in IGCC power stations over 250 MW (Zhang and Yang 2019). Compared with fixedbed and fluidizedbed gasifiers, entrainedbed ...
Mathematical Modelling And Numerical Simulation Of Underground Coal Gasification Process; Numerical Modelling Of Multiphase Flow, SolidLiquid Phase Transformation, Reactive Flow And Bluff Body Flows ... CSIRCentral Mechanical Engineering Research Institute. | Durgapur713209, West Bengal, India | Site Owned and Maintained by CSIRCMERI (IT Group)
As a crucial aspect of clean and efficient coal utilization technology, modern coal gasification technology is developing rapidly and diversely. This Special Issue, entitled "Advances in the Coal Gasification Process and Technology Development", aims to gather outstanding research that addresses advances in the coal gasification process and ...
A complex coalbiomass cogasification process in a single equation is given in Eq. ... scale studies of cogasification of Indian coal and biomass blends have been reported as an insufficient number of research and academic institutions. CSIRCIMFR is presently involved in carrying out RD work on coal gasification, cogasification of coal and ...
The ash sample for this study was collected from a commercialscale fixedbed gasification unit in the eastern part of India. This coal gasification plant (CGP) has a syn gas production capacity of 2,25,000 Nm 3 /h with a coal requirement of around 270 tons/hr. The plant was built based on Lurgi, Germany SLTC, S. Africa technology.
Gasification of biomass for power generation has only been proven in small scales. Most biomass gasification applications demonstrated to date for electric power have power output less than 10 MW (Heschel and Klose 1995). Biomass is also being investigated for cogasification with coal to reduce fossilbased CO 2 emissions.
Compared to conventional methods, coal gasification process has a positive effect on human life and nature by reducing air pollution. After the coal gasification process, the products (tar, NOx, SOx, dioxins, furans, hydrocarbons and CO) leaving the reactor should be checked before discharging into ambient air [116, 117]. Solid wastes released ...
Conclusion. Fuel gas from gasification may be utilized for power generation after it is properly cleaned in downstream process. The clean fuel gas with high CO and H 2 content has the potential for production of liquid petroleum fuels through FischerTropsch process. However, achieving such clean fuel gas is nowadays a major concern in research.
Schematic of insitu gasification process [7] 3. Criteria for UCG site selection UCG is a highly efficient coal conversion process [8], with gasification efficiencies similar to that of surface gasifiers (7585%) and mining efficiencies comparable with that of underground coal mining (around 60%). Not all UCG trials were successful.
Coal and Energy Division, CSIRNorth East institute of Science Technology, Jorhat785006, Assam, India: ... Development of feasibility assessment model for adaptation of underground coal gasification technology in the NorthEast Region of India. (GAP 0261). ... Life member of Materials Research Society of India. Life Member of Assam Science ...
This work aims to perform the applied mineralogical characterization of coal gasification ash (CGA) generated from a commercial fixed bed downdraft gasification plant in eastern India.
A fluidized bed gasification pilot plant has been designed and installed at CSIRCentral institute of Mining and Fuel Research to cater the present need of technology development with high ash coals. The activity was also included under clean coal technology development programme under 11th Five year plan, Govt. of India.
Improved Fugitive Methane Emission Factors for Coal Mining and Handling in India including abandoned mines. Integrated costeffective technology for attaining Zero Liquid. Development of Vision enhancement system for Foggy Weather. Setting up of information and facilitation centre for empowering living of SC in Jharkhand State.
Coal gasification is the leading technology in achieving clean and efficient utilization of coal resources. ... Although the commercialized gasifiers are widespread all over the world, continuous fundamental research is necessary to meet the technical challenges covering carbon conversion, nozzle and refractory lifetime, slagging issues and the ...
UCG is a very sitespecific technology and Indian industries are in the process of initiating pilot studies of UCG at various sites because there is a requirement of a steady supply of clean and ...
Underground coal gasification (UCG) is a process to use and convert deep and economically unmineable coal into syngas for further use in electric power, liquid fuels and synthetic natural gas etc ...
The cold gas efficiency is a crucial indicator of the energy usage efficiency of the coal gasification process, calculated as follows: (3) CGE = G s y n L H V s y n G c o a l L H V c o a l. where G syn and LHV syn represent the mass flow rate and lower heating value of the syngas exiting the gasifier, respectively. Exergy analysis
Airblown plants are less amenable to chemicals production applications and to high levels of precombustion CO 2 capture than oxygenblown gasifiers; 2. a gasification plant—for converting solid or liquid hydrocarbon fuels into synthesis gas (syngas); 3. a syngas gas cleanup system; and. 4. a combinedcycle power plant.
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