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The present invention relates to an olefinic naphtha and a process for producing lower olefinc from this naphtha. In the process of the present invention for producing lower olefins, preferably ethylene, at least a portion of a hydrocarbon asset is converted to synthesis gas and at least a portion o

The present invention relates to an olefinic naphtha and a process for producing lower olefinc from this naphtha. In the process of the present invention for producing lower olefins, preferably ethylene, at least a portion of a hydrocarbon asset is converted to synthesis gas and at least a portion of the synthesis gas is converted to an olefinic naphtha by a Fischer-Tropsch process. At least a portion of the olefinic naphtha is converted in a naphtha cracker to a product stream comprising lower olefins, and at least a portion of the lower olefins from the product stream of the cracker are recovered.

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That which is claimed is: 1. An olefinic naphtha comprising: a. olefins in an amount of 10 to 80 weight %, wherein the olefins comprise greater than 50 weight % linear primary olefins; b. non-olefins in an amount of 20 to 90 weight %, wherein the non-olefins comprise greater than 50 weight % paraff

That which is claimed is: 1. An olefinic naphtha comprising: a. olefins in an amount of 10 to 80 weight %, wherein the olefins comprise greater than 50 weight % linear primary olefins; b. non-olefins in an amount of 20 to 90 weight %, wherein the non-olefins comprise greater than 50 weight % paraffins; c. sulfur in an amount of less than 10 ppm by weight; d. nitrogen in an amount of less than 10 ppm by weight; e. aromatics in an amount less than 10 weight %; f. a total acid number of between 0.32 mg KOH/g and 1.5 mg KOH/g; and g. a boiling range of C5 to 4000�� F., wherein the olefinic naphtha is derived from a Fischer-Tropsch process. 2. An olefinic naphtha according to claim 1, comprising olefins in an amount of 25 to 80 weight %. 3. An olefinic naphtha according to claim 1, comprising olefins in an amount of 50 to 80 weight %. 4. An olefinic naphtha according to claim 1, wherein the non-olefins comprise greater than 75 weight % paraffins. 5. An olefinic naphtha according to claim 1, wherein the non-olefins comprise greater than 90 weight % paraffins. 6. An olefinic naphtha according to claim 1, wherein the olefins are comprised of greater than 65 weight % linear primary olefins. 7. An olefinic naphtha according to claim 1, wherein the olefins are comprised of greater than 80 weight % linear primary olefins. 8. An olefinic naphtha according to claim 1, wherein the paraffins have an i/n ratio of less than 1. 9. An olefinic naphtha according to claim 1, wherein the paraffins have an i/n ratio of less than 0.5. 10. An olefinic naphtha according to claim 1, comprising sulfur in an amount of less than 2 ppm by weight and nitrogen in an amount of less than 2 ppm by weight. 11. An olefinic naphtha according to claim 10, comprising aromatics in an amount of less than 2 weight %. 12. A blended naphtha comprising: a. an olefinic naphtha comprising olefins in an amount of 10 to 80 weight % and non-olefins in an amount of 20 to 90 weight %, wherein the olefins comprise greater than 50 weight % linear primary olefins and the non-olefins comprise greater than 50 weight % paraffins, wherein the olefinic naphtha is derived from a Fischer-Tropsch process; and b. a naphtha selected from the group consisting of a hydrotreated Fischer-Tropsch derived naphtha, a hydrocracked Fischer-Tropsch derived naphtha, a hydrotreated petroleum derived naphtha, a hydrocracked petroleum derived naphtha, and mixtures thereof, wherein the blended naphtha comprises less than 10 ppm sulfur and has an acid number of between 0.32 mg KOH/g and 1.5 mg KOH/g. 13. A blended naphtha according to claim 12, wherein the blended naphtha comprises less than 5 ppm sulfur. 14. A blended naphtha according to claim 12, wherein the blended naphtha comprises less than 2 ppm sulfur. 15. A blended naphtha according to claim 12, wherein the blended naphtha comprises nitrogen in an amount of less than 2 ppm and aromatics in an amount of less than 2 weight %. 16. A blended naphtha according to claim 12, wherein the olefinic naphtha comprises olefins in an amount of 25 to 80 weight %. 17. A blended naphtha according to claim 12, wherein the olefins of the olefinic naphtha comprise greater than 65 weight % linear primary olefins. 18. A blended naphtha according to claim 12, comprising 10 to 90 weight % olefinic naphtha and 90 to 10 weight % naphtha of (b).