Patent application number | Description | Published |
20100058803 | SYSTEM FOR INCONDENSABLE COMPONENT SEPARATION IN A LIQUEFIED NATURAL GAS FACILITY - A liquefied natural gas (LNG) facility that employs a system to remove incondensable material from one or more refrigeration cycles within the facility. One or more embodiments of the present invention can be advantageously employed in an open-loop refrigeration cycle to remove at least a portion of one or more high vapor pressure components that have accumulated in the refrigerant cycle over time. In addition, several embodiments can be advantageously employed to stabilize facility operation in the event of drastic changes to the concentration of the natural gas feed stream introduced into the facility. | 03-11-2010 |
20100218551 | Method for Utilization of Lean Boil-Off Gas Stream as a Refrigerant Source - This invention relates to a system and method for liquefying natural gas. In another aspect, the invention concerns an improved liquefied natural gas facility employing a closed loop methane refrigeration cycle. In another aspect, the invention concerns the utilization of lean boil-off gas. | 09-02-2010 |
20130199238 | LIQUEFIED NATURAL GAS PLANT WITH ETHYLENE INDEPENDENT HEAVIES RECOVERY SYSTEM - This invention relates to a process and apparatus for liquefying natural gas. In another aspect, the invention concerns a liquefied natural gas (LNG) facility employing an ethylene independent heavies recovery system. | 08-08-2013 |
20140260417 | MIXED-REFLUX FOR HEAVIES REMOVAL IN LNG PROCESSING - Systems and methods for removing heavy hydrocarbons are provided. Methods for liquefying a natural gas stream include: (a) cooling at least a portion of the natural gas stream in an upstream refrigeration cycle of a liquefaction process to produce a cooled natural gas stream; (b) separating via a first distillation column the cooled natural gas stream into a first top fraction and a first bottom fraction, wherein the first fraction does not freeze in a subsequent downstream step of the liquefaction process; (c) separating via a second distillation column the first bottom fraction into a second top fraction and a second bottom fraction, wherein the second top fraction at least a portion of a reflux stream; (d) optionally separating via a third distillation column the second bottom fraction into a third top fraction and a third bottom fraction, wherein the third top fraction forms a portion of the reflux stream; and (e) introducing the reflux stream into the first distillation column. | 09-18-2014 |