摘要
研制了一种用于延迟焦化过程的低硅消泡剂,该消泡剂是以聚醚改性聚硅氧烷为主体复配而成。以含氢硅油与聚醚为原料,催化合成了聚醚改性聚硅氧烷;考察了反应时间、反应温度、物料配比、催化剂用量对反应的影响,确定了最佳合成条件,即含氢硅油中的Si—H与聚醚中的—OH的摩尔比为1∶(1.4～1.6)、催化剂FA-2的质量分数为0.4%、反应温度为110℃、反应时间为8h。评价结果表明,所制备的聚醚改性聚硅氧烷及其复配物的消泡及抑泡性能良好。
A low-silicon defoaming agent for delayed coking was developed,which is a complex additive package containing polyether modified polysiloxane mainly.The polyether modified polysiloxane was prepared from hydrogenous silicone oil and polyether,with FA-2 as catalyst.The influences of reaction conditions,such as reaction time,reaction temperature,the ratio of reagents and catalyst dosage were studied,and the optimum conditions were obtained as follows： the mole ratio of Si—H in hydrogenous silicone oil and —OH in polyether was in the range of（1∶1.4）—（1∶1.6）,the mass fraction of catalyst was 0.4%,reaction was proceeded at 110 ℃ for 8 h.Performance evaluation results showed that the prepared polyether modified polysiloxane and its complex exhibited good antifoaming and suppressing foam performance.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2012年第9期25-28,共4页
Petroleum Processing and Petrochemicals
关键词
延迟焦化
聚醚改性聚硅氧烷
硅
消泡剂
delayed coking
polyether modified polysiloxane
silieon
defoaming agent
