| Patent Number |
Title Of Patent |
Date Issued |
| 7435401 |
Pseudoisothermal ammonia process |
October 14, 2008 |
| Ammonia is produced in a reactor 22, 24, 246, 248, 250 or 252, in which pseudoisothermal conditions can be approached by convective cooling of a reaction zone of the reactor by positioning at least a portion of the reaction zone in indirect contact with a flow of hot gas such as exhaust |
| 7435331 |
Catalyst regenerator with a centerwell |
October 14, 2008 |
| A method of converting an original FCC unit of side by side configuration to a converted FCC unit for processing light feedstock by replacing an regenerator in the original FCC unit with an embodied regenerator. From the original FCC unit, the air supply assembly is removed and a cen |
| 7429686 |
Low pressure olefin recovery process |
September 30, 2008 |
| A low-pressure olefins recovery process and plant are described. The feed gas is compressed and distilled at a primary distillation pressure. The overhead stream is chilled at a pressure less than 30 kg/cm2 (430 psia) to partially condense the overheads. The primary distillation tower is |
| 7416025 |
Subsea well communications apparatus and method using variable tension large offset risers |
August 26, 2008 |
| Disclosed are compliant variable tension risers (106) to connect deep-water subsea wellheads (102) to a single floating platform (104) in wet tree or dry try systems. The variable tension risers (106) allow several subsea wellheads (102), in water depths from 1220 to 3050 meters, at |
| 7381854 |
Selective hydrogenation of alpha-methyl-styrene to cumene |
June 3, 2008 |
| A process for the selective hydrogenation of alpha-methyl-styrene (AMS) to cumene in a two catalyst system is disclosed. A crude cumene feed stream containing up to 10% AMS by weight is supplied to the first reaction zone 112 and mixed with hydrogen in a first catalyst bed 118 containing |
| 7381320 |
Heavy oil and bitumen upgrading |
June 3, 2008 |
| Disclosed is a process for the upgrading and demetallizing of heavy oils and bitumens. A crude heavy oil and/or bitumen feed is supplied to a solvent extraction process 104 wherein DAO and asphaltenes are separated. The DAO is supplied to an FCC unit 106 having a low conversion activity |
| 7371361 |
Maximum reaction rate converter system for exothermic reactions |
May 13, 2008 |
| An ammonia converter system and method are disclosed. The reactor can alter the conversion of ammonia by controlling the reaction temperature of the exothermic reaction along the length of the reactor to parallel the equilibrium curve for the desired product. The reactor 100 can comp |
| 7347051 |
Processing of residual oil by residual oil supercritical extraction integrated with gasification |
March 25, 2008 |
| Residual oil supercritical extraction (ROSE) 10 and integrated gasification combined-cycle (IGCC) power systems 70, 114 are cooperatively integrated. High-level heat from the IGCC is used via a heat transfer fluid 84 for high level process heating requirements in the ROSE unit. This |
| 7294749 |
Low pressure olefin recovery process |
November 13, 2007 |
| A low-pressure olefins recovery process and plant are described. The feed gas 300 is compressed 302, 304 and distilled 310 at a primary distillation pressure. The overhead stream 312 is chilled 318 at a pressure less than 30 kg/cm.sup.2 (430 psia) to partially condense the overheads. |
| 7220505 |
Autothermal reformer-reforming exchanger arrangement for hydrogen production |
May 22, 2007 |
| Low-energy, low-capital hydrogen production is disclosed. A reforming exchanger 14 is placed in parallel with an autothermal reformer (ATR) 10 to which are supplied a preheated steam-hydrocarbon mixture. An air-steam mixture is supplied to the burner/mixer of the ATR 10 to obtain a synga |
| 7207192 |
Secondary deethanizer to debottleneck an ethylene plant |
April 24, 2007 |
| A process for deethanizing light hydrocarbons comprising olefins is disclosed. A feed stream, comprising ethylene, ethane, propylene, and propane, is supplied to a primary deethanizer 24, having absorption and stripping sections. The absorption section produces an overhead vapor effl |
| 7191836 |
Dry tree subsea well communications apparatus and method using variable tension large offset ris |
March 20, 2007 |
| Disclosed are compliant variable tension risers (106) to connect deep-water subsea wellheads (102) to a single floating platform (104). The variable tension risers (106) allow several subsea well-heads (102), in water depths from 4,000 to 10,000 feet, at lateral offsets from one-tent |
| 7153479 |
Catalyst regenerator with a centerwell |
December 26, 2006 |
| A catalyst regenerator for regenerating spent light FCC catalyst and heating the catalyst to supply heat to an FCC reactor. The regenerator has discharge outlets for catalyst and off gas and a valve for introducing spent catalyst through a central stand pipe portion. The regenerator |
| 7144498 |
Supercritical hydrocarbon conversion process |
December 5, 2006 |
| Supercritical conversion of hydrocarbons boiling above 538.degree. C. (1000.degree. F.) with a solvating hydrocarbon at a weight ratio of solvating hydrocarbon to high-boiling hydrocarbons of at least 2:1 and at conditions above the critical temperature and pressure of the high-boili |
| 7138001 |
Partial oxidation reformer-reforming exchanger arrangement for hydrogen production |
November 21, 2006 |
| Low-energy hydrogen production is disclosed. A reforming exchanger is placed in parallel with a partial oxidation reactor in a new hydrogen plant with improved efficiency and reduced steam export, or in an existing hydrogen plant where the hydrogen capacity can be increased by as muc |
| 7128827 |
Integrated catalytic cracking and steam pyrolysis process for olefins |
October 31, 2006 |
| Integration of gas oil and light olefin catalytic cracking zones with a pyrolytic cracking zone to maximize efficient production of petrochemicals is disclosed. Integration of the units in parallel allows production of an overall product stream with maximum ethylene and/or propylene |
| 7090816 |
Low-delta P purifier for nitrogen, methane, and argon removal from syngas |
August 15, 2006 |
| A process for manufacturing ammonia from syngas with excess air for reforming and nitrogen removal with low pressure losses is disclosed. Auto-refrigeration for cooling the syngas for cryogenic hydrogen enrichment is provided by expansion of a hydrogen-lean waste fluid stream from a |
| 7081230 |
Split-flow, vertical ammonia converter |
July 25, 2006 |
| A vertical, fixed-bed ammonia converter wherein a fixed-bed catalyst zone is configured into two mechanically separated catalyst volumes and two gas streams that operate in parallel. The design maintains the ratio of gas flow to catalyst volume so that there is no catalyst effectiveness |
