User:Milton Beychok/Sandbox: Difference between revisions

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{| class=wikitable
{| class = "wikitable" align="left"
|+ Specific gas constant examples
|+ Steam cracking feedstocks versus yields of intermediate petrochemical products
!Gas!!Formula!!R<sub>&thinsp;s</sub>, kJ&thinsp;•&thinsp;kg<sup>&thinsp;-1</sup>&thinsp;•&thinsp;K<sup>&thinsp;-1</sup>!!R<sub>&thinsp;s</sub>, Btu&thinsp;•&thinsp;lb<sup>&thinsp;-1</sup>&thinsp;•&thinsp;°R<sup>&thinsp;-1</sup>
!&nbsp;||colspan="5"|Product Yields
|-
|-
|Air
! Feedstock<br/>source||Ethylene<br/>weight %||Propylene<br/>weight %||Butadiene<br/>weight %||Aromatics<sup> (a)</sup><br/>weight%||Other<sup> (b)</sup><br/>weight %
|align=center|−||align=center|0.2870||align=center|0.06855
|- align="center"
| Ethane||84.0 ||1.4||1.4||0.4||12.8
|- align="center"
| Propane||45.0||14.0||2.0||3.5||35.5
|- align="center"
| Butane||44.0||17.3||3.0||3.4||32.3
|- align="center"
| Naphtha<sup> (c)</sup>||34.4||14.4||4.9||14.0||32.3
|- align="center"
| Gas oil<sup> (d)</sup>||25.5 ||13.5||4.9||12.8||43.3
|-
|-
|Ammonia
|colspan="6"|(a) Includes benzene, toluene, xylenes and any other aromatics.<br/>
|align=center|NH<sub>3</sub>||align=center|0.4882||align=center|0.11662
(b) Includes hydrogen, methane, butenes, non-aromatic portion of pyrolysis gasoline and fuel oil.<br/>
|-
(c) Full-range naphtha (as differentiated from light or heavy naphtha).<br/>
|Carbon dioxide
(d) The portion of petroleum crude oil that has a boiling range of about 250 to 550 °C.<br/>
|align=center|CO<sub>2</sub>||align=center|0.1889||align=center|0.04513
That encompasses the boiling range of  atmospheric gas oil (AGO) produced by the atmospheric<br/>
|-
distillation of petroleum crude oil and the boiling range of vacuum gas oil (VGO) produced by the<br/>
|Hydrogen
vacuum distillation of petroleum crude oil.  
|align=center|H<sub>2</sub>||align=center|4.1240||align=center|0.98512
|-
|Nitrogen
|align=center|N<sub>2</sub>||align=center|0.2968||align=center|0.07090
|-
|Oxygen
|align=center|O<sub>2</sub>||align=center|0.2598||align=center|0.06206
|}
|}

Revision as of 14:15, 26 July 2011

Steam cracking feedstocks versus yields of intermediate petrochemical products
  Product Yields
Feedstock
source		 Ethylene
weight %		 Propylene
weight %		 Butadiene
weight %		 Aromatics (a)
weight%		 Other (b)
weight %
Ethane 84.0 1.4 1.4 0.4 12.8
Propane 45.0 14.0 2.0 3.5 35.5
Butane 44.0 17.3 3.0 3.4 32.3
Naphtha (c) 34.4 14.4 4.9 14.0 32.3
Gas oil (d) 25.5 13.5 4.9 12.8 43.3
(a) Includes benzene, toluene, xylenes and any other aromatics.

(b) Includes hydrogen, methane, butenes, non-aromatic portion of pyrolysis gasoline and fuel oil.
(c) Full-range naphtha (as differentiated from light or heavy naphtha).
(d) The portion of petroleum crude oil that has a boiling range of about 250 to 550 °C.
That encompasses the boiling range of atmospheric gas oil (AGO) produced by the atmospheric
distillation of petroleum crude oil and the boiling range of vacuum gas oil (VGO) produced by the
vacuum distillation of petroleum crude oil.

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