Abstract: An upgrade to a computer program is associated with a token which is in turn associated with the original key for the computer program. In particular, given the original key, a publisher provides a token for the upgrade which is digitally signed and associated with the original key. The token also can result in a license state for the upgrade that is different from the license state for the original computer program. The original key can be used in various business rules by the publisher to determine whether to issue the token and/or what license state to associate with the token. When the upgrade is run on the computer, the verification process authenticates the token, the original license and the original key and authorizes execution of the upgrade based on the token for upgrade. Multiple upgrades can use multiple tokens and the original key.

Abstract: The present invention relates to a fluidized catalytic cracking process for cracking hydrocarbon feed having organo-sulfur compound as an impurity, said process comprising: adding a heavy metal poisoned spent catalyst to an equilibrium catalyst to obtain a composite circulating catalyst, wherein the heavy metal poisoned spent catalyst is added in an amount to maintain the activity of the circulating catalyst; and obtaining a fluidized catalytic cracked product. The present invention further relates to fluidized catalytic cracked product obtained by the process of the present invention. The sulfur content of the fluidized catalytic cracked product mainly gasoline which is boiling in the range of C5-250° C. reduced by more than 20% (wt/wt). And Research Octane number of the fluidized catalytic cracked product is increased by more than 1 unit.

Abstract: The present invention relates to an improved process for obtaining sodium silicate alkali solution depleted of sodium salt and enriched in silica from a mother liquor recovered after isolation of molecular sieves and more particularly, the present invention relates to a process for recycling mother liquor obtained after the isolation of molecular sieves for the preparation of fresh molecular sieves or as a binder for producing Fluid Catalytic Cracking (FCC) catalyst.

Abstract: The present invention relates to an improved process for obtaining sodium silicate alkali solution depleted of sodium salt and enriched in silica from a mother liquor recovered after isolation of molecular sieves and more particularly, the present invention relates to a process for recycling mother liquor obtained after the isolation of molecular sieves for the preparation of fresh molecular sieves or as a binder for producing Fluid Catalytic Cracking (FCC) catalyst.