Embodiments of the present disclosure are directed to hydrocracking catalysts and methods of making same. The hydrocracking catalyst comprises a platinum encapsulated zeolite having a crystallinity greater than 20% determined by X-ray powder diffraction analysis.

The present disclosure is directed to processes for the selective separation of carbon dioxide (CO.sub.2) from multi-component feedstreams containing CO.sub.2. The processes use a potassium-form MER framework type zeolite having a stick-like morphology. The potassium is present in the zeolite as K.sup.+ in extra-framework locations, and the zeolite is essentially free of an extra-framework cation other than potassium.

The present disclosure is directed to processes for the selective separation of carbon dioxide (CO.sub.2) from multi-component feedstreams containing CO.sub.2. The processes use a potassium-form MER framework type zeolite having a stick-like morphology. The potassium is present in the zeolite as K.sup.+ in extra-framework locations, and the zeolite is essentially free of an extra-framework cation other than potassium.

According to one or more embodiments, non-agglomerated, nano-sized ZSM-22 zeolites may be synthesized by methods comprising operating a mechanical rotation drum unit at a first temperature of from 40° C. to 60° C. and a first speed of from 200 rpm to 1000 rpm for a first time period of from 1.3 hours to 2.7 hours; operating the mechanical rotation drum unit at a second speed of from 30 rpm to 90 rpm for a second time period of from 0.05 hours to 0.4 hours; heating the mechanical rotation drum unit at a ramping temperature of from 8° C./minute to 12° C./minute to a second temperature of from 115° C. to 185° C. at the second speed; operating the mechanical rotation drum unit at the second temperature and the second speed for a third time period of from 30 hours to 90 hours; and cooling the mechanical rotation drum unit at a fourth speed of 0 rpm.

According to one or more embodiments, non-agglomerated, nano-sized ZSM-22 zeolites may be synthesized by methods comprising operating a mechanical rotation drum unit at a first temperature of from 40° C. to 60° C. and a first speed of from 200 rpm to 1000 rpm for a first time period of from 1.3 hours to 2.7 hours; operating the mechanical rotation drum unit at a second speed of from 30 rpm to 90 rpm for a second time period of from 0.05 hours to 0.4 hours; heating the mechanical rotation drum unit at a ramping temperature of from 8° C./minute to 12° C./minute to a second temperature of from 115° C. to 185° C. at the second speed; operating the mechanical rotation drum unit at the second temperature and the second speed for a third time period of from 30 hours to 90 hours; and cooling the mechanical rotation drum unit at a fourth speed of 0 rpm.

The present disclosure is directed to processes for the selective separation of carbon dioxide (CO.sub.2) from multi-component feedstreams containing CO.sub.2. The processes use a potassium-form MER framework type zeolite having a stick-like morphology. The potassium is present in the zeolite as K.sup.+ in extra-framework locations, and the zeolite is essentially free of an extra-framework cation other than potassium.

The present disclosure is directed to processes for the selective separation of carbon dioxide (CO.sub.2) from multi-component feedstreams containing CO.sub.2. The processes use a potassium-form MER framework type zeolite having a stick-like morphology. The potassium is present in the zeolite as K.sup.+ in extra-framework locations, and the zeolite is essentially free of an extra-framework cation other than potassium.

In an RHO-type zeolite, in a case where a peak at a lattice spacing of 9.96 to 11.25 Å in a measurement using a powder X-ray diffraction method is assumed as a reference peak and an intensity of the reference peak is assumed as 100, a relative intensity of a peak at a lattice spacing of 4.59 to 4.85 Å is 150 to 300, a relative intensity of a peak at a lattice spacing of 3.55 to 3.64 Λ is 200 to 500, and a relative intensity of a peak at a lattice spacing of 2.98 to 3.06 Å is 100 to 200.

In an RHO-type zeolite, in a case where a peak at a lattice spacing of 9.96 to 11.25 Å in a measurement using a powder X-ray diffraction method is assumed as a reference peak and an intensity of the reference peak is assumed as 100, a relative intensity of a peak at a lattice spacing of 4.59 to 4.85 Å is 150 to 300, a relative intensity of a peak at a lattice spacing of 3.55 to 3.64 Λ is 200 to 500, and a relative intensity of a peak at a lattice spacing of 2.98 to 3.06 Å is 100 to 200.

A zeolite membrane complex includes a porous support and a zeolite membrane formed on the support and composed of ETL-type zeolite. In an X-ray diffraction pattern obtained by X-ray irradiation onto a surface of the zeolite membrane, an intensity of a peak existing in the vicinity of 2θ=9.9° and an intensity of a peak existing in the vicinity of 2θ=19.8° are each not lower than 0.8 times an intensity of a peak existing in the vicinity of 2θ=7.9°.