How does a pre reformer work?

Pre-reforming is the process by which methane and heavier hydrocarbons are steam reformed and the products of the heavier hydrocarbon reforming are methanated. The adiabatic pre-reformer is usually positioned upstream of the main steam reformer and uses a catalyst with high nickel content.

What catalyst is used in the steam reforming process?

Steam reforming is the reaction of methane (and other higher hydrocarbons) with steam in the presence of a catalyst to form carbon oxides and hydrogen. Most industrial catalysts are based on using nickel as the catalytic component, although platinum group metals (pgms) are used for some specific duties.

What is a primary reformer?

A primary reformer converts a hydrocarbon feed (e.g. natural gas) to hydrogen and carbon monoxide by means of an endothermic catalytic reaction with typically steam and CO2. It provides a mixture of H2, CO, and H2O with various fractions of CO2 (depends on the process) and non-reacted CH4.

Is steam reformer a reactor?

Steam reforming is the most widespread process for the generation of hydrogen-rich synthesis gas from light carbohydrates. The feed materials natural gas, liquid gas or naphtha are endothermically converted with water steam into synthesis gas in catalytic tube reactors.

What is the function of a reformer?

The purpose of the reformer is to upgrade heavy naphtha into a high-value gasoline blend stock by raising its octane. The primary product of the reformer is reformate. However, it also generates large amounts of hydrogen that can be used in the hydrotreaters and hydrocrackers.

What is primary reformer in ammonia plant?

Primary and secondary reformers are two of the most important process units of a naphthahatural gas based ammonia plant. The primary reformer is an energy absorbing unit requiring an external source of heat at elevated temperature whereas the secondary reformer produces excess energy.

Which is a catalyst used in the pre reforming process?

Can a nickel catalyst be used for pre reforming natural gas?

Pre-reforming of natural gas has been studied on a nickel catalyst at 480–550 °C and 20 bar using a TEOM (Tapered Element Oscillating Microbalance) reactor. The focus has been on carbon formation and the main objective was to study the influence of C 2 –C 3 hydrocarbons in the methane feed on carbon deposition on the catalyst.

What kind of catalyst is plt-147 pre reformer?

PLT-147’s pre-reformer catalyst is a pre-reduced, high-Ni based catalyst and is operated with the objective of minimising C2+ slip. The pre-reformer catalyst was loaded in February 2015.

How does steam reforming on a Ni catalyst work?

1. Introduction Steam reforming on Ni catalysts in tubular reformers is the main process for production of synthesis gas and hydrogen from natural gas. Although methane is the main component of natural gas, the gas usually also contains higher hydrocarbons [1].

How does a pre reformer work? Pre-reforming is the process by which methane and heavier hydrocarbons are steam reformed and the products of the heavier hydrocarbon reforming are methanated. The adiabatic pre-reformer is usually positioned upstream of the main steam reformer and uses a catalyst with high nickel content. What catalyst is used in the…