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    Methanol is produced from the reaction of carbon monoxide and hydrogen. The gas mixture used contains 32.5% CO, 67.3% H2, and 0.2% CH4. Only 18% of the CO is converted in the single reactor pass. The methanol product is separated, while the unconverted gases are recycled with fresh feed. The recycled stream methane content must not exceed 3%. This is achieved by bleeding off a portion of the recycled stream after separation. The question asks to calculate the moles of recycled stream per 100 moles of fresh feed.

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    Exaam

    Uploaded by

    Avegail
    39 views1 page
    Methanol is produced from the reaction of carbon monoxide and hydrogen. The gas mixture used contains 32.5% CO, 67.3% H2, and 0.2% CH4. Only 18% of the CO is converted in the single reactor pass. The methanol product is separated, while the unconverted gases are recycled with fresh feed. The recycled stream methane content must not exceed 3%. This is achieved by bleeding off a portion of the recycled stream after separation. The question asks to calculate the moles of recycled stream per 100 moles of fresh feed.

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    Checalc2

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    Methanol is produced from the reaction of carbon monoxide and hydrogen. The gas mixture used contains 32.5% CO, 67.3% H2, and 0.2% CH4. Only 18% of the CO is converted in the single reactor pass. The methanol product is separated, while the unconverted gases are recycled with fresh feed. The recycled stream methane content must not exceed 3%. This is achieved by bleeding off a portion of the recycled stream after separation. The question asks to calculate the moles of recycled stream per 100 moles of fresh feed.

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    39 views1 page

    Exaam

    Uploaded by

    Avegail
    Methanol is produced from the reaction of carbon monoxide and hydrogen. The gas mixture used contains 32.5% CO, 67.3% H2, and 0.2% CH4. Only 18% of the CO is converted in the single reactor pass. The methanol product is separated, while the unconverted gases are recycled with fresh feed. The recycled stream methane content must not exceed 3%. This is achieved by bleeding off a portion of the recycled stream after separation. The question asks to calculate the moles of recycled stream per 100 moles of fresh feed.

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    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    of 1

    Methanol is made by the reaction CO and H2 according to the reaction CO + H2 ( CH3OH.

    The gas
    mixture entering the reactor is contaminated by small amounts of methane. The composition of the gas
    mixture is as follows: CO = 32.5%; H2 = 67.3%; and CH4 = 0.2%. The single pass conversion of CO in the
    reactor is only 18%. The exit stream from the reactor is sent to a separator in which methanol is
    separated and removed. The unconverted gases are recycled and mixed with the fresh feed before
    being admitted to the reactor. It is desired that the methane content in the recycle stream is not more
    than 3%. This is achieved by bleeding off a portion of the recycle stream at the exit of the separator.
    Calculate per 100 moles of fresh feed the moles of recycle stream.

    A fuel containing 75% ethane and 25% propane is burned with dry air. All the hydrogen gas burns to
    water and the carbon dioxide to carbon monoxide ratio is 10:1. Fifteen percent excess air is supplied.
    Calculate the complete analysis of the stack gas.

    A furnace is fired with fuel oil with partial analysis of 7.6% S and 2.8% N. Orsat analysis of the stack gas
    shows 9.44% carbon dioxide, 1.19% carbon monoxide, 0.4% sulfur dioxide, 0.47% hydrogen gas, 6.8%
    oxygen gas, and 81.7% nitrogen gas. Air is supplied at 23 degrees Celsius, 755 mmHg and 85% relative
    humidity. Calculate the cubic meter of air per kg of fuel.

    A furnace burns coal analyzing 78.35% C, 27% VCM, 1.3% N, 7.1% ash and 0.95% S. Analysis of the refuse
    shows 6% VCM, 32% FC and 62% ash. Air is supplied at 30˚C, 735 torrs with 90% RH. The stack gases at
    250˚C and 745 torrs has a partial Orsat analysis of 9.79% CO2 and 1.47% CO. Assuming that 5.19% of the
    C fired is lost in the refuse, calculate the m3 of stack gas per kg coal on a basis of 100 kg coal.

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