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I. Fill-in-the-blank questions: [Moderators should give extra points to those who answer well] 1. H2S is a (colorless gas) with a pungent (irritating) odor; it is toxic, has a molecular weight of (34), is (easily) soluble in water, and is flammable. 2. (Primary hydrogenation and secondary hydrogenation) must undergo activation treatment before use in order to possess (catalyst activity); this process is known as the (heating reduction) of the catalyst. 3. The oxygen content in coke oven gas is high; reduce production when it exceeds (0.8%), and shut down the operation when it exceeds (1.0%). 4. The ratio of the feed rate of (water vapor) to the feed rate of (feed gas) per unit time is known as the water vapor ratio. 5. PPM stands for (parts per million), while PPB stands for (parts per billion).
A few more questions regarding coke oven gas conversion: inlet and outlet temperatures, pressure, methane content; Water-to-carbon ratio, oxygen-to-carbon ratio ; The ratio of feed gas to catalyst amount, as well as the type and origin of the conversion catalyst.
I. Fill-in-the-blank questions: [Moderators should give extra points to those who answer well] 1. H2S is a (colorless gas) with a pungent (irritating) odor; it is toxic, has a molecular weight of (34), is (easily) soluble in water, and is flammable. 2. (Primary hydrogenation and secondary hydrogenation) must undergo activation treatment before use in order to possess (catalyst activity); this process is known as the (heating reduction) of the catalyst. 3. The oxygen content in coke oven gas is high; reduce production when it exceeds (0.8%), and shut down the operation when it exceeds (1.0%). 4. The ratio of the feed rate of (water vapor) to the feed rate of (feed gas) per unit time is known as the water vapor ratio. 5. PPM stands for (parts per million), while PPB stands for (parts per billion).
I. Fill-in-the-blanks: [Moderators should give extra points to those who answer well] 1. H2S is a (colorless gas) with a foul (garlic-like) odor; it is toxic, has a molecular weight of (34), is (easily) soluble in water, and is flammable. 2. (Hydrogenation and conversion catalysts) must undergo activation treatment before use in order to possess (very high catalytic activity); this process is known as the (activation) of the catalyst. 3. The oxygen content in coke oven gas is high; reduce production when it exceeds (0.8%), and shut down the operation when it exceeds (1.0%). 4. The ratio of the feed rate of (water vapor) to the feed rate of (feed gas) per unit time is known as the water vapor ratio. 5. PPM stands for (parts per million), while PPB stands for (parts per billion). The temperature of the converted coke oven gas entering the converter is around 550 degrees; the peak temperature is around 1120 degrees, while the exit temperature is around 900 degrees. The inlet pressure is 2.3 MPa, the methane content is around 26%, and the water-to-carbon ratio is around 0.9
I. Fill-in-the-blank questions: [Moderators should give extra points to those who answer well] 1. H2S is a (colorless gas) with a foul odor (like rotten eggs), it is toxic, its molecular weight is (34), it (easily) dissolves in water, and it is flammable. 2. (Hydrogenation conversion catalysts) must undergo activation treatment before use in order to exhibit (very high conversion activity); this process is known as the catalyst’s (temperature-induced reduction). 3. The oxygen content in coke oven gas is high; reduce production if it exceeds (0.5%), and shut down the operation if it exceeds (0.8%). 4. The ratio of the feed rate of (water vapor) to the feed rate of (feed gas) per unit time is known as the water vapor ratio. 5. PPM stands for (parts per million), while PPB stands for (parts per billion). The temperature of the converted coke oven gas entering the converter is around 550 degrees; the peak temperature is around 1120 degrees, while the exit temperature is around 940 degrees. The inlet pressure is 2.2 MPa and the outlet pressure is 2.0 MPa. The methane content is around 26%, dropping to around 1.0% after conversion. The water-to-carbon ratio is around 0.9
PPB stands for one billionth. I learned it!
I. Fill-in-the-blank questions: [Moderators should give extra points to those who answer well] 1. H2S is a (colorless gas) with a pungent (irritating) odor; it is toxic, has a molecular weight of (34), is (easily) soluble in water, and is flammable. 2. (Primary hydrogenation and secondary hydrogenation) must undergo activation treatment before use in order to possess (catalyst activity); this process is known as the (heating reduction) of the catalyst. 3. The oxygen content in coke oven gas is high; reduce production when it exceeds (0.8%), and shut down the operation when it exceeds (1.0%). 4. The ratio of the feed rate of (water vapor) to the feed rate of (feed gas) per unit time is known as the water vapor ratio. 5. PPM stands for (parts per million), while PPB stands for (parts per billion).
1. H2S is a (colorless gas) with a foul (pungent) odor; it is toxic, has a molecular weight of (34), is (easily) soluble in water, and is flammable. 2. (Hydrogenation catalysts) must undergo activation treatment before use in order to acquire (activity); this process is known as the catalyst’s (sulfidation). 3. The oxygen content in coke oven gas is high; reduce production when it exceeds (0.8%), and shut down the operation when it exceeds (1.0%). 4. The ratio of the feed rate of (water vapor) to the feed rate of (feed gas) per unit time is known as the water vapor ratio. 5. PPM stands for (one part per million), while PPB stands for (one part per billion)
I. Fill-in-the-blanks: [Moderators should give extra points to those who answer well] 1. H2S is a (colorless gas) with a foul (garlic-like) odor; it is toxic, has a molecular weight of (34), is (easily) soluble in water, and is flammable. 2. (Hydrogenation and conversion catalysts) must undergo activation treatment before use in order to possess (very high catalytic activity); this process is known as the (activation) of the catalyst. 3. The oxygen content in coke oven gas is high; reduce production when it exceeds (0.8%), and shut down the operation when it exceeds (1.0%). 4. The ratio of the feed rate of (water vapor) to the feed rate of (feed gas) per unit time is known as the water vapor ratio. 5. PPM stands for (parts per million), while PPB stands for (parts per billion). The temperature of the converted coke oven gas entering the converter is around 550 degrees; the peak temperature is around 1120 degrees, while the exit temperature is around 900 degrees. The inlet pressure is 2.3 MPa, the methane content is around 26%, and the water-to-carbon ratio is around 0.9
First time meeting PPB, learned *