System for pressurising parallel batch reactors and method of using such
AssigneeAvantium Technologies B.V.
InventorsTom Nijbacker, Robbert Arnold de Graaf
Life of this patent
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Abstract
A system for pressurising parallel batch reactors, and a process for using such to pressurize batch reactors to a pressure of between 20 and 150 barg. The reactors are closed by a removable reactor closure system for covering the mouth of such reactor, wherein the closure system comprises an elastomeric septum and a rigid member with a small hole covering the septum. The septum may be pierced with a specific hollow needle, e.g. to force pressurized gas in the reactor, which pressure can be maintained for prolonged periods after withdrawing the needle. The closure system does not require moving parts.
Claims15
A system for pressurising parallel batch reactors, which system comprises a plurality of reactors and at least one movable hollow needle connectable to a pressure source, wherein a reactor comprises:
- a reactor body having a volume of 0.5-50 ml and a reactor mouth with a diameter of between 2 and 30 mm;
- a removable reactor closure system for covering said reactor mouth;
- and wherein said hollow needle has an outer diameter of 2 millimeter or less, and which hollow needle has an opening of the inner canal of the needle, which opening is located at the lateral side of the needle at a distance from the tip of the needle equal or larger than the diameter of the needle, to at most 5 cm from the tip of the needle,
- wherein the removable reactor closure system for covering said reactor mouth comprises:
- an elastomeric septum having a thickness of at least 200% of the diameter of the hollow needle,
- and a rigid member covering the septum at the reactor mouth except for an opening in the rigid member leaving the septum exposed to the atmosphere, which opening has a diameter of not more than 200% of the diameter of the hollow needle,
- wherein the removable reactor closure system comprises no moving parts, and wherein the elastomeric septum has a Shore A hardness of less than 75.
Dependencies are inferred from the claim text.