Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
131 words
IN A PROCESS OF AROMATIZING A FEED HYDROCARBON COMPRISING AT LEAST ONE C2 TO 400*F. COMPONENT TO A PRODUCT COMPRISING A LIQID WHICH IS PREDOMINANTLY AROMATIC, AND GAS BY CONTACTING SUCH FEED IN A REACTION ZONE WITH A ZSM-5 TYPE SYNTHETIC ALUMINOSILICATE MOLECULAR SIEVE CATALYST AT ABOUT 800* TO 1500*F., A PRESSURE OF ABOUT 1 TO 35 ATMOSPHERES ABSOLUTE AND A SPACE VELOCITY EQUIVALENT OF ABOUT 1 TO 15 WHSV IN THE ABSENCE OF ADDED HYDROGEN UNDER SUCH COMBINATION OF CONDITIONS AS TO CONVERT AT LEAST 90 PERCENT OF THE AROMATIZABLE FEED TO A PRODUCT IN A YIELD OF AT LEAST 30 GRAMS OF AROMATICS PER 100 GRAMS OF NON-AROMATICS IN THE FEED; THE IMPROVEMENT, WHEREBY INCREASING THE PROPORTION OF AROMATICS IN SAID LIQUID PRODUCT, WHICH COMPRISES UTILIZING AS THE CATALYST
Claim 2
Dependent Claim
131 words
IN A PROCESS OF AROMATIZING A FEED HYDROCARBON COMPRISING AT LEAST ONE C2 TO 400*F. COMPONENT TO A PRODUCT COMPRISING A LIQID WHICH IS PREDOMINANTLY AROMATIC, AND GAS BY CONTACTING SUCH FEED IN A REACTION ZONE WITH A ZSM-5 TYPE SYNTHETIC ALUMINOSILICATE MOLECULAR SIEVE CATALYST AT ABOUT 800* TO 1500*F., A PRESSURE OF ABOUT 1 TO 35 ATMOSPHERES ABSOLUTE AND A SPACE VELOCITY EQUIVALENT OF ABOUT 1 TO 15 WHSV IN THE ABSENCE OF ADDED HYDROGEN UNDER SUCH COMBINATION OF CONDITIONS AS TO CONVERT AT LEAST 90 PERCENT OF THE AROMATIZABLE FEED TO A PRODUCT IN A YIELD OF AT LEAST 30 GRAMS OF AROMATICS PER 100 GRAMS OF NON-AROMATICS IN THE FEED; THE IMPROVEMENT, WHEREBY INCREASING THE PROPORTION OF AROMATICS IN SAID LIQUID PRODUCT, WHICH COMPRISES UTILIZING AS THE CATALYST
Claim 3
Dependent Claim
30 words
A process as claimed in claim 1 wherein said second stage catalyst comprises about 0.5 to 2 parts by weight of ZSM-5 per part by weight of said second sieve.
Claim 4
Dependent Claim
20 words
A process as claimed in claim 1 wherein the conversion in said first stage is at least about 80 percent.
Claim 5
Dependent Claim
48 words
A process as claimed in claim 1 wherein said second molecular sieve zeolite is at least one member selected from the group consisting of stilbite, laumontite, cancrinite, erionite, offretite, clinoptilolite, ferrierite, zeolite Alpha , zeolite N-A, zeolite ZK-21, zeolite ZK-22, zeolite T, zeolite L, dachiaradite, epistilbite and chabazite.
Claim 6
Dependent Claim
14 words
A process as claimed in claim 4 wherein said second molecular sieve is erionite.
Claim 7
Dependent Claim
36 words
A process as claimed in claim 1 wherein said second stage catalyst contains about 0.1 to 10 parts by weight of said ZSM-5 type of molecular sieve per part by weight of said second molecular sieve.
Claim 8
Dependent Claim
31 words
A process as claimed in claim 1 wherein said feed is selected from the group consisting of straight run naphtha, light naphtha, pyrolysis gasoline, reformate, raffinate, coker gasoline and mixtures thereof.
Claim 9
Dependent Claim
16 words
A process as claimed in claim 1 wherein said ZSM-5 type of molecular sieve is ZSM-5.
Claim 10
Dependent Claim
16 words
A process as claimed in claim 1 wherein hydrogen is fed to said second downstream catalyst.