A non-equilibrium plasma system for refining of syngas, the system comprising: • a reactor comprising: a hollow chamber having a first end and a second end; the chamber having a gas outlet proximal to the second end and a gas inlet proximal to the first end wherein the gas inlet is configured to input gas into the hollow chamber; • a high voltage electrode; and • a ground electrode separated from the high voltage electrode by an arc initiating gap, wherein the system is configured to create a non-equilibrium plasma producing electric arc upon application of a high voltage potential across the arc initiating gap, characterised in that the gas inlet comprises a first eccentric cylindrical manifold for gasifying agent input; and a second eccentric cylindrical manifold for syngas input; the first and second eccentric manifolds being located on different planes; wherein each eccentric cylindrical manifold (202, 207) comprises a first cylinder having a first diameter and a second cylinder having a second diameter, wherein the first diameter center and the second diameter center define an offset, such that each of the first and second eccentric manifolds form a single inlet manifold; wherein the eccentric cylindrical manifolds (202, 207) are configured to promote an axially symmetric and swirling flow pattern and are configured such that the syngas, the gasifying input agent and the plasma arc come together concurrently in the reactor. • a reactor comprising: a hollow chamber having a first end and a second end; the chamber having a gas outlet proximal to the second end and a gas inlet proximal to the first end wherein the gas inlet is configured to input gas into the hollow chamber; a hollow chamber having a first end and a second end; the chamber having a gas outlet proximal to the second end and a gas inlet proximal to the first end wherein the gas inlet is configured to input gas into the hollow chamber; • a high voltage electrode; and • a ground electrode separated from the high voltage electrode by an arc initiating gap, wherein the system is configured to create a non-equilibrium plasma producing electric arc upon application of a high voltage potential across the arc initiating gap, characterised in that the gas inlet comprises a first eccentric cylindrical manifold for gasifying agent input; and a second eccentric cylindrical manifold for syngas input; the first and second eccentric manifolds being located on different planes; wherein each eccentric cylindrical manifold (202, 207) comprises a first cylinder having a first diameter and a second cylinder having a second diameter, wherein the first diameter center and the second diameter center define an offset, such that each of the first and second eccentric manifolds form a single inlet manifold; wherein the eccentric cylindrical manifolds (202, 207) are configured to promote an axially symmetric and swirling flow pattern and are configured such that the syngas, the gasifying input agent and the plasma arc come together concurrently in the reactor. wherein the system is configured to create a non-equilibrium plasma producing electric arc upon application of a high voltage potential across the arc initiating gap, characterised in that the gas inlet comprises a first eccentric cylindrical manifold for gasifying agent input; and a second eccentric cylindrical manifold for syngas input; the first and second eccentric manifolds being located on different planes; wherein each eccentric cylindrical manifold (202, 207) comprises a first cylinder having a first diameter and a second cylinder having a second diameter, wherein the first diameter center and the second diameter center define an offset, such that each of the first and second eccentric manifolds form a single inlet manifold; wherein the eccentric cylindrical manifolds (202, 207) are configured to promote an axially symmetric and swirling flow pattern and are configured such that the syngas, the gasifying input agent and the plasma arc come together concurrently in the reactor. the gas inlet comprises a first eccentric cylindrical manifold for gasifying agent input; and a second eccentric cylindrical manifold for syngas input; the first and second eccentric manifolds being located on different planes; wherein each eccentric cylindrical manifold (202, 207) comprises a first cylinder having a first diameter and a second cylinder having a second diameter, wherein the first diameter center and the second diameter center define an offset, such that each of the first and second eccentric manifolds form a single inlet manifold; wherein the eccentric cylindrical manifolds (202, 207) are configured to promote an axially symmetric and swirling flow pattern and are configured such that the syngas, the gasifying input agent and the plasma arc come together concurrently in the reactor.