2025 · EnvironmentPrevious Year Question
Q5.
Consider the following substances: I. Ethanol II. Nitroglycerine III. Urea Coal gasification technology can be used in the production of how many of them?
A. Only one
B. Only two
C. All the three
D. None
Answer

B

Explanation

gasification is a process that converts coal into a fuel called syngas (synthesis gas), primarily of carbon monoxide (CO) and hydrogen (H2). syngas can then be used as a fuel for various including electricity generation, and as a for chemical production. 1 is correct: Syn Gas produced from Coal can is usable in producing Synthetic Natural (SNG), energy fuel (methanol & ethanol), ammonia fertilizers and petro-chemicals. Synata Bio has an advanced syngas to ethanol technology to syngas. The plant design includes utilization of and proprietary anaerobic which provides higher hydrogen uptake increases overall yield to ethanol. The production produce a liquid product stream, “broth”, the dilute ethanol product (about 2.5%-3% in water that is distilled and dehydrated to the desired high purity thanol, prior to being to the finished product tanks. 3 is correct: Coal gasification based fertilizer at Talcher (Odisha): Talcher Fertilizer Ltd. (a joint of CIL, GAIL, RCF and FCIL) is engaged in setting of an integrated coal gasification based urea plant high ash coal from nearby Talcher coalfields with Pet-coke shall be utilized to produce 1.27 Metric Tonnes Per Annum (MMTPA) neem- Urea. Currently, construction activities are 2 is not correct: Nitroglycerin, which was synthesized by Ascanio Sobrero, was used by Nobel to manufacture dynamite. It was in Nobel's factories in the late 1860s that the antianginal of nitroglycerin was discovered. Nitroglycerine, is a vasodilatory drug used primarily to relief from anginal chest pain. It is not produced coal gasification. Hence, option (b) is the correct