seabed unit based on ABB Offshore Systems' SUBSIS (Subsea Separation and Injection System) technology, is located between two conventional production manifolds and the Troll C platform. It uses a gravity separator to extract water from produced fluids. This water is then re-injected into a disposal well via a subsea variablespeed pump. The control system comprises topside computers and fibre-optic communication
本文介绍了用于控制和监测海底水分离器的海底控制系统的设计,供 Norsk Hydro 在挪威卑尔根以西 100 公里的 Troll 油田使用。Troll 油田位于 31/2 和 31/5 区块,含有大量石油和天然气以及大量水。因此决定安装一个海底分离器,以避免安装额外的上层处理设备并最大限度地提高有用的流线容量。图 1 显示了安装位置和海底布置。分离器是一种基于 ABB Offshore Systems 的 SUBSIS(海底分离和注入系统)技术的独立海底装置,位于两个常规生产管汇和 Troll C 平台之间。它使用重力分离器从产出液中提取水。然后通过海底变速泵将这些水重新注入处理井。控制系统包括上部计算机和光纤通信,以及用于控制分离器阀门和监测压力、温度和分离器水位传感器的海底控制模块。该系统以闭环方式运行,水
Nitration of Cinnamic Acids Using Cerium (IV) Ammonium Nitrate Immobilized on Silica
作者:Anna Messere、Alessandra Gentili、Isidoro Garella、Fabio Temussi、Benedetto Di Blasio、Antonio Fiorentino
DOI:10.1081/scc-200030569
日期:2004.1.1
Abstract Treatment of cinnamic acids with cerium (IV) ammoniumnitrate supported on silica (CAN/SiO2) was used to synthesize nitro derivative and ipso substitution products. The position of the substituents defines the type and the yields of the products. This is the first example of an ipso substitution reaction by solid‐phase approach.
摘要 用二氧化硅负载的硝酸铈 (IV) 铵 (CAN/SiO2) 处理肉桂酸以合成硝基衍生物和 ipso 取代产物。取代基的位置决定了产物的类型和产率。这是通过固相方法进行 ipso 取代反应的第一个例子。
JPS52139032A
申请人:——
公开号:JPS52139032A
公开(公告)日:1977-11-19
A New Efficient Method for the Total Synthesis of Linear Furocoumarins
作者:Jian-Min Yue、Bang-Le Zhang、Fang-Dao Wang
DOI:10.1055/s-2006-926250
日期:——
A newefficient method for the synthesis of linear furocoumarins by a Nef reaction and intramolecular cyclocondensation in one pot results in the construction of a benzofuran ring. This method provides a new strategy to furnish the benzofuran framework easily, and also allows the convenient synthesis of furocoumarin derivatives with different substituents on the coumarin ring by a subsequent Pechmann